15 month old speech milestones: what's typical and when to act

Most 15-month-olds have a handful of words beyond mama and dada, usually somewhere between one and five, and they'll point at things they want and follow a simple instruction like "give me the cup." If a child this age has zero words at all, that's the point where the American Academy of Pediatrics says it's time to refer for an evaluation. It's worth acting on: early intervention before age 3 is free in every U.S. state, and starting early tends to get the best results.

What should a 15 month old be saying?

By the 15-month checkup, most kids have at least one clear word, and often a handful more. The American Academy of Pediatrics (AAP) surveillance checklist counts a "word" as any sound your child uses consistently for a specific thing, it doesn't have to sound like adult speech. If your daughter says "ba" every time she spots her bottle and only in that context, that's a real word as far as this checklist is concerned ^[1].

Most 15-month-olds have somewhere between 1 and 10 true words, and the range considered normal is wide. Norming data from the MacArthur-Bates Communicative Development Inventories puts the 50th-percentile toddler at about 10 words, while kids at the 10th percentile have just 1 to 3 ^[2]. Both ends of that range usually fall into what clinicians consider watchful-waiting territory, depending on everything else going on.

Word count isn't the whole picture, though.

At this age, a typical toddler also points with one finger, both to ask for things and to show you something that caught their eye. They can follow a simple one-step direction without any gesture to help, something like "give me the ball." They tend to understand roughly 50 words even though they say far fewer ^[3], and their babbling has some real melody and variation to it rather than sounding flat or repetitive. They also make eye contact and turn or respond when you say their name.

Those social pieces carry more weight than the word count on its own. A child who babbles a lot, points, and holds your gaze but only says two words is in a pretty different situation than a quiet child who doesn't point and doesn't track your eyes.

What are the actual red flags at 15 months?

If you're wondering whether what you're seeing at 15 months is normal or worth flagging, the AAP's 2022 updated surveillance guidelines are pretty specific about it. There's a short list of milestones that, if missed, call for an evaluation right away rather than a "let's wait and see" approach ^[1]. Here's what warrants a call now, not later:

• No single word used consistently (a generic "mama" or "dada" that isn't tied to anything specific doesn't count)
• Not pointing to ask for something or to share interest
• Not walking yet (this points to broader developmental questions beyond speech)
• Not responding to their name consistently

The American Speech-Language-Hearing Association adds another one: losing words a child already had, at any age, is always worth acting on immediately rather than monitoring ^[3].

The sign parents tend to miss is pointing. A child not pointing to share interest is one of the strongest early signals of autism. A 2007 study in the Journal of Child Psychology and Psychiatry found that failure to point to share interest ("protodeclarative pointing") between 12 and 18 months was among the most predictive early markers identified in that age window ^[4]. That doesn't mean a child who isn't pointing has autism. It means the finding deserves attention sooner rather than later.

If you're noticing more than one of these at once, don't hold off until the next well-child visit. Call your pediatrician this week. In most states, you can also refer yourself directly to early intervention without going through a doctor first.

How does 15-month speech connect to 20-month milestones?

A lot of parents read an article like this around 15 months, see a "watch and wait" line, and don't think about it again until their child is 20 months old and they're genuinely worried. Knowing where things are headed now can save you that stretch of worry later.

By 20 months, the AAP and ASHA both expect a child to say at least 50 words and start putting two words together, things like "more milk" or "daddy go" ^[1][3]. Going from 1 to 10 words at 15 months to 50 words at 20 months sounds like a huge leap, and it is one. The vocabulary usually takes off between 18 and 20 months, and for kids on track, it happens fast.

A speech delay at 20 months is often the same quiet issue that was already there at 15 months, just further along. A child who said only two words at 15 months and was told to wait often turns up at 20 months still saying 5 to 10 words, carrying a five-month gap that didn't have to happen. That's not a knock on any one pediatrician. It's a known limit of a wait-and-see approach, and it's exactly why ASHA recommends that any child with fewer than 10 words at 18 months get referred for a speech-language evaluation rather than monitored for longer ^[3].

By 20 months, a child with a speech delay also tends to show more frustration when trying to communicate, simply because they understand far more than they can say. That frustration can look like a behavior problem. Close the gap in communication, and the behavior often settles down too.

What's the difference between a late talker and a speech delay?

Parent groups use these two terms as if they mean the same thing. Clinicians don't treat them that way.

A "late talker" is usually a child between 18 and 30 months who has fewer words than you'd expect but is developing typically everywhere else: thinking, social skills, hearing, motor skills. Comprehension is fine. They understand what you say, they just don't say much back. Roughly 70 to 80 percent of these kids catch up on their own by age 3, a group researchers actually call "late bloomers" ^[5]. The remaining 20 to 30 percent end up with language delays that stick around.

"Speech delay" is the wider clinical term. It covers late talkers, but also children whose delay has a clear underlying cause: hearing loss, childhood apraxia of speech, differences in how they process language, autism, or delays that show up across multiple areas at once.

Here's the practical problem: at 15 months, there's no way to tell from the outside which group your child falls into. That's precisely what a speech-language pathologist evaluates. So don't try to guess the category first and decide whether to act based on your guess. Get the evaluation, and let someone qualified tell you.

Hearing gets checked first, every single time. A child who isn't hearing well can't develop speech the normal way. Audiologists can test hearing reliably even in infants, and that hearing test is step one in any speech evaluation worth doing.

What happens at a 15-month speech evaluation?

Parents sometimes skip an evaluation because they picture something clinical and stressful for their toddler. It's far more low-key than that. Mostly it's an SLP playing with your child.

The session runs 45 to 60 minutes: the speech-language pathologist plays with your child while taking structured notes, then spends a good chunk of time interviewing you about your child's history. She's watching how your child communicates more than whether they talk yet: how they play, whether they point and gesture, how they respond when you speak to them, and whether sounds are starting to come along. You'll usually fill out a standardized questionnaire as well. Some evaluations include a hearing screen on the spot; others will send you to audiology separately.

For children under 3 in the United States, this evaluation costs nothing thanks to the Individuals with Disabilities Education Act (IDEA) Part C program, which covers early intervention. You don't need a diagnosis to get started, just a concern and a phone call^[6]. Services take place in your home or somewhere in your community, and no family can be turned away for inability to pay.

Once your child turns 3, the evaluation shifts to IDEA Part B through your local school district, still at no cost. Private SLPs will also evaluate children this age, though prices swing widely, often $150 to $350 depending on where you live and what your insurance covers. For families in rural areas or places without many local providers, online speech therapy has made getting an evaluation a lot more realistic.

What can parents do at home to support speech at this age?

The evidence on parent-led strategies is genuinely good. Following your child's attention and narrating what they're looking at and doing has a consistent, positive effect on early language ^[7].

Here's what that looks like in practice: your child picks up a block. Instead of asking "what color is that?" (a test, which doesn't actually model language), you just say "block. You have the block. Blue block." Simple, flat, no pressure. Then you stop. That pause is the part most parents skip. They rush to fill the silence and never give the toddler room to answer.

A few approaches worth building into your day: narrating your own actions alongside your child's ("Mommy is pouring water. You're splashing") in simple words, which is sometimes called self-talk and parallel talk. When your child says "ball," you can say "big ball" or "throw ball" back. That's not a correction, it's modeling the next step up. Giving 5 to 10 seconds of wait time after a question or a pause before jumping in is harder than it sounds, but it works. And reading aloud daily matters less for comprehension than for exposure: board books where you point and name things, or books with simple repeated phrases, do the most good at this age. What to skip: flashcard drills, making your child "say the word" before you hand over what they're asking for, and TV running in the background as ambient noise. Background television has a documented negative link to early language outcomes ^[8].

If you want structured daily practice, the Little Words app was built to guide parents of late talkers and neurodivergent kids through these activities, with a quiz that finds your child's communication profile and suggests targeted next steps.

Could my 15 month old's speech delay be related to autism?

It's a fair question, and worth knowing what to look for. About 40 percent of autistic people are minimally verbal or nonspeaking, and many autistic children first show clear differences between 12 and 18 months ^[4]. That said, a speech delay at 15 months is extremely common in children who turn out not to be autistic. Most late talkers aren't.

What tends to point more toward autism, and again, this isn't a diagnosis, just a reason to bring it up with your doctor sooner rather than later: a speech delay paired with reduced eye contact or not responding to their name, no pointing or showing objects to share interest, repetitive movements like hand flapping, rocking, or spinning objects alongside the language delay, losing words they used to say, or very rigid play (lining up toys only, not copying what you do).

A speech delay on its own, without those other signs, makes autism less likely, though not impossible. If you're seeing several of those features together with the delay, that's your cue to ask for a developmental pediatrician referral or a full developmental evaluation. The AAP recommends autism-specific screening at the 18-month and 24-month well-child visits using a validated tool like the M-CHAT-R/F ^[1].

When a speech delay and possible autism are both in the picture, speech therapy tailored to autism tends to look a bit different from general therapy, leaning more on functional communication and other ways of getting a message across. Some families start with AAC devices early on here, and the research is clear that early AAC doesn't suppress speech. If anything, it tends to help it along ^[9].

What about early intervention, and how do you actually get it?

You call your state's early intervention program yourself, no referral required (though your pediatrician can send one too). Under IDEA Part C, every state runs a program offering free evaluation and services to children under 3 with developmental delays or conditions that put them at risk ^[6]. That covers speech-language therapy, occupational therapy, physical therapy, and coaching for parents, usually delivered right in your home or your child's childcare setting.

Once you call, the program has 45 days to complete an evaluation. If your child qualifies, you and the team put together an Individualized Family Service Plan (IFSP), and services start from there.

Here's the part nobody loves: wait times vary a lot depending on where you live. Some families get seen in weeks, others wait months, and there's no clean fix for that since it's a system-wide issue, not something you did wrong. What you can control is calling as early as possible and then following up persistently. If you have concerns at 15 months, call then. Don't wait until 18 or 20 months to see if things change on their own. That's not jumping the gun, it's just good timing.

And the timing really does matter. Services started before age 3 lead to bigger, faster gains than the same services started later ^[10]. Early intervention works best as a first step, not something you fall back on when other things haven't worked.

Once your child turns 3, things shift over to the school district under IDEA Part B. The process looks similar: you request an evaluation in writing, the district has 60 days to complete it, and if your child qualifies, you build an Individualized Education Program (IEP) together.

Is there anything causing speech delays I might not have considered?

Hearing loss is the one nobody wants to miss. Even a mild, fluctuating loss from chronic ear infections (otitis media with effusion) can hold back early language, because the child is getting muffled or on-again-off-again sound input during the most important window for learning to talk ^[11]. If your child has had repeated ear infections or tubes, a current audiological evaluation needs to be part of the workup.

Oral motor differences are another factor that often gets missed. Some toddlers have low muscle tone in the jaw, lips, or tongue (sometimes called hypotonia) that makes speech sounds physically harder to produce, even though they understand language just fine. An SLP trained in feeding and oral motor development can check for this.

Childhood apraxia of speech (CAS) is less common but does turn up in this age range. It's a motor speech disorder where the brain has trouble planning and sequencing the movements needed for speech. Childhood apraxia of speech usually looks like inconsistent errors, very few consonant sounds, and a lot of visible effort for little sound output. It doesn't resolve on its own, but it responds well to therapy that's specific and frequent.

Some genetic conditions, such as Down syndrome, fragile X, and 22q11.2 deletion, predictably affect speech. If your child already has one of these diagnoses, get a speech therapy referral now rather than waiting to see what happens.

One myth worth putting to rest: growing up bilingual or multilingual doesn't cause speech delays. Research consistently shows that simultaneous bilingual acquisition tracks similarly to monolingual acquisition once you count words across both languages ^[7]. If your child is growing up with two languages, look at the total word count across both, not just one.

A side-by-side look at 15-month and 20-month speech expectations

Parents comparing these two ages usually want the numbers laid out plainly, so here's what typical development looks like at each point, based on AAP surveillance guidelines and ASHA resources ^[1][3].

Area	15 months (typical)	20 months (typical)
Word count (expressive)	1 to 10 words	50+ words
Word combinations	Not yet expected	2-word combinations emerging
Comprehension	~50 words, simple 1-step commands	200+ words, 2-step commands
Pointing	Present (both to request and to share)	Well established
Imitation	Imitates words and gestures	Imitates 2-word phrases
Red flag threshold	0 words = refer now	Fewer than 50 words = refer now

What matters most here is the gap between how much a child says and how much they understand. Kids typically understand two to four times as many words as they can produce. So a 15-month-old who says nothing but clearly understands 40 words and points well is a different situation than one who shows none of that. Both still deserve a look from a professional, but the clinical picture isn't the same, and that distinction matters when you're deciding how worried to be. A 20-month-old with a speech delay who hasn't been seen by anyone yet isn't a five-alarm emergency, but it's past time to act. The stretch where early intervention works best and easiest is starting to close. Go ahead and book the evaluation.

When should I push back on "wait and see"?

Sometimes waiting is the right call, and sometimes it isn't. Parents deserve to know which situation they're in.

If your child has 3 to 10 words at 15 months, understands what's said to them, points well, holds eye contact, and has no other developmental concerns, watching and waiting can be reasonable. A re-check at 18 months with a clear plan is a sensible way to handle that.

Push back, though, if your child has no words at all at 15 months, has lost words they used to say, doesn't respond to their name, or doesn't point, or if you notice any of the autism-associated features mentioned earlier. The research doesn't support sitting back and waiting in those situations^[1][3].

Push back as well if your gut tells you something's off and the clinician brushes past it too quickly. Nobody knows your child better than you do. First-time parents do worry more, sure, but real early delays get dismissed too, and both things can be true at once. Asking for an early intervention referral costs nothing and doesn't lock you into anything. If the evaluation comes back fine, you can simply decline services.

A good pediatrician won't be bothered by a parent requesting a speech evaluation. If yours is, that tells you something too.

If you want structured support while you wait for the appointment, speech therapy resources are now widely available in digital form, though they're meant to supplement a professional evaluation, not stand in for one.

Frequently asked questions

How many words should a 15 month old say?

Most kids this age say somewhere between 1 and 10 words, with the 50th percentile landing around 10 words according to MacArthur-Bates CDI data. The AAP treats zero words as a reason to refer for evaluation right away. Word count isn't the whole story, though: understanding around 50 words and pointing matter just as much at this age, so look at the whole picture rather than fixating on the tally.

What if my 15 month old says no words at all?

Zero words at 15 months is a clear red flag under AAP and ASHA guidelines. Call your pediatrician this week and ask for an early intervention referral, or reach out to your state's early intervention program yourself. You don't need a doctor's referral to get a free evaluation under IDEA Part C, and there's no reason to wait for the next well-child visit.

Is 'mama' and 'dada' enough at 15 months?

It depends on how your child is using them. If "mama" is said specifically for you and "dada" specifically for their other parent, those count as two real words. Said indiscriminately for everyone and everything, they don't count as true words yet. At 15 months, clinicians want to see at least one clear word used consistently for a specific thing.

What's a normal speech milestone for a 20 month old?

By 20 months, the AAP and ASHA expect at least 50 words and the beginnings of two-word combinations like "more juice" or "daddy shoe." Fewer than 50 words, or no combinations showing up yet, counts as a speech delay at this age. That's the standard trigger for a referral, and evaluation should happen promptly rather than waiting until 24 months.

Does watching TV or screens cause speech delay?

Background TV specifically has a documented negative link to early language, likely because it interrupts the back-and-forth exchanges that build language skills. The AAP recommends avoiding screen media other than video chatting for children under 18 months. Between 18 and 24 months, if screens are part of the day, watching together and talking about what's happening on screen lowers the risk.

Can bilingual children have speech delays?

Growing up bilingual doesn't cause speech delay. Research shows bilingual children pick up language on a similar timeline once you count words across both languages together. A bilingual 15-month-old who says two words in English and three in Spanish has five words total, well within the normal range. Just make sure you tell your evaluator about both languages so they can assess your child accurately.

What causes speech delays in toddlers?

Common causes include hearing loss (rule this out first), a family history of late talking, ear infections that affect hearing during a key developmental window, oral motor differences, childhood apraxia of speech, autism, and general developmental delays. For many late talkers, though, no specific cause ever turns up. A speech-language evaluation combined with a hearing test is how you find out which, if any, of these apply to your child.

How is early intervention different from private speech therapy?

Early intervention, under IDEA Part C, is free for children under 3, takes place in natural settings like home or daycare, and leans heavily on coaching parents to support speech throughout the day. Private speech therapy is paid or insurance-covered, usually happens in a clinic, and is directed by the SLP rather than built around parent coaching. Both approaches work, and plenty of families end up using both. For most families with a child under 3, early intervention is the right first call.

Could pointing without words be okay at 15 months?

A child who points clearly but says few words is showing strong communication intent, and that's a genuinely good sign: pointing is one of the strongest predictors of later language. Still, if your 15-month-old points well but has zero actual words, it's worth a call to early intervention or your pediatrician. Pointing plus zero words calls for watchful waiting, not panic.

What is echolalia and does it mean my toddler has a problem?

Echolalia means repeating words or phrases heard from others, whether that's lines from a TV show or something a parent just said. Some echolalia is completely normal in toddlers between 15 and 30 months; it's simply one way children practice language. It's worth an evaluation when echolalia is the only form of communication a child has (no spontaneous words or requests), or when it's still the main speech pattern past age 3. Our deeper overview of echolalia covers this in more detail.

What is the M-CHAT and when should it be done?

The M-CHAT-R/F (Modified Checklist for Autism in Toddlers, Revised with Follow-Up) is a validated autism screening tool the AAP recommends at the 18-month and 24-month well-child visits. Parents fill it out themselves, and it only takes about 5 minutes, covering things like pointing, eye contact, imitation, and social communication. A positive screen leads to a follow-up interview and possibly a full developmental evaluation. It is not, on its own, a diagnosis.

Should I be worried about speech delay if my child understands everything?

Good comprehension paired with limited expressive speech is a classic late talker profile, and many of these children do catch up on their own. But "most" isn't "all": about 20 to 30 percent of children who understand well but say little at 18 to 20 months go on to have persistent language delays. An evaluation at 15 to 18 months is still the right call, since there's no downside to getting one.

What does a speech therapist actually do with a 15 month old?

Mostly, they play. A skilled pediatric SLP uses toys, books, and games to watch how your child communicates, imitates, requests things, and responds to language, noting what sounds they make, whether gestures get paired with sounds, and how they interact with you. The SLP also coaches you directly, since at this age it's the strategies parents run during everyday routines that drive the most progress.

My 20 month old has a speech delay. Is it too late for early intervention to help?

No, not at all. Twenty months sits well inside the highest-impact window for early intervention. Services under IDEA Part C run until age 3, and outcome research for children who start between 18 and 30 months is strong. Call your state's early intervention program today. Waiting past age 3 is really the only thing that costs you the biggest gains.

Here's a look at the research behind the guidance in this piece. The American Academy of Pediatrics updated its surveillance milestones in 2022, flagging zero words at 15 months as a reason for referral, and recommending autism-specific screening at 18 and 24 months using the M-CHAT-R/F tool (American Academy of Pediatrics, Pediatrics journal, 'Identifying Infants and Young Children With Developmental Disorders in the Medical Home' (2022 updated surveillance guidelines)). Norming data from the MacArthur-Bates Communicative Development Inventories puts the 50th-percentile 15-month-old at around 10 words, with the 10th-percentile range sitting at just 1 to 3 words (MacArthur-Bates Communicative Development Inventories (MB-CDI), norming data). ASHA's own thresholds call for referral when a child has fewer than 10 words at 18 months, expect 50 words and two-word combinations by 20 months, and treat any loss of previously acquired words as an immediate red flag (American Speech-Language-Hearing Association (ASHA), Late Language Emergence resource). Pointing matters more than people realize: a 2007 study found that failure to use protodeclarative pointing between 12 and 18 months is one of the strongest early predictors of autism spectrum differences, and noted that about 40% of autistic individuals are minimally verbal (Journal of Child Psychology and Psychiatry, 'Predictive validity of pointing and other early developmental markers for autism spectrum disorder' (2007)). On the encouraging side, Rescorla and colleagues found that 70 to 80 percent of late talkers catch up by age 3, though the remaining 20 to 30 percent go on to have persistent language delays (Journal of Speech, Language, and Hearing Research, Rescorla et al., outcomes for late talkers). If you're weighing whether to seek an evaluation, it helps to know that IDEA Part C guarantees free evaluation and services for children under 3 in every state, regardless of a family's ability to pay, and states have 45 days after referral to complete that evaluation (U.S. Department of Education, IDEA Part C, Early Intervention Program for Infants and Toddlers with Disabilities). Starting early genuinely pays off: the research synthesis from ECTA found that services delivered before age 3 lead to bigger, faster gains than the same services started later (Early Childhood Technical Assistance Center (ECTA) / U.S. Dept. of Education, research synthesis on early intervention outcomes). For bilingual families, Hoff and colleagues found that children acquire language on a similar timeline to monolingual peers once you count words across both languages, and that bilingualism itself doesn't cause speech delay; responsive interaction remains the parent strategy with the strongest evidence behind it (Child Development journal, Hoff et al., 'Bilingual children's language development'). Christakis and colleagues found that background television is tied to less parent-child interaction and fewer adult words directed at infants, which works against early language input (Pediatrics journal, Christakis et al., 'Audible Television and Decreased Adult Words, Infant Vocalizations, and Conversational Turns'). And for parents worried that AAC devices might hold back speech, a systematic review found the opposite: introducing AAC early doesn't suppress spoken language, and the evidence consistently shows it either supports or has no negative effect on speech outcomes (American Journal of Speech-Language Pathology, systematic review, AAC and speech development in minimally verbal children). Finally, it's worth remembering that chronic ear fluid (otitis media with effusion) can cause mild to moderate hearing loss that fluctuates over time, and that this can interfere with language development during the window when it matters most (American Academy of Pediatrics, Clinical Practice Guideline, Otitis Media with Effusion (2016)).