The question never arrives as a question about words. It arrives as another toddler. A cousin the same age who narrates her entire lunch. A daycare friend who says "excavator." Your group chat, where somebody's 19-month-old has apparently started using "actually."

So you count. Eleven words? Fourteen, if "woof" and the noise that means milk count. (They count. We'll get there.) And then you search for the number that says whether that's enough.

Here is the honest version of that number, at every age from 12 to 36 months. It's a range, the range is enormous, and the useful numbers are not the averages. There are only three numbers on this page worth acting on, and none of them is an average.

Word counts from 12 to 36 months

Two kinds of numbers live in this chart, and confusing them is where the worry starts. "What research reports" is what real children do, measured by the vocabulary checklists researchers have given to thousands of families. "The floor" is the checkpoint number, mostly from the CDC's checklists, which are deliberately set at the 75th percentile: the age by which about three in four children have a skill. Floors are tripwires, not targets.

Research figures from the MacArthur-Bates CDI norming studies and the Wordbank project; floors paraphrased from the CDC's 2022 checklists and the Rescorla late-talker criterion. Full citations in Sources.

How many words at each age

Here is the part almost nobody says out loud: the research does not publish a number for every month. The official checkpoints exist at 12, 15, 18, 24, 30 and 36 months, and nowhere else. If your child is 14 or 17 months old, the honest answer is that no authority has set a bar for that specific month, and the nearest checkpoint is the one that counts.

That is not a dodge. It is the most useful thing on this page, because it means a number you find for "14 months" on some other site was almost certainly invented by rounding. Below is what each age actually looks like, and which checkpoint applies.

How many words should a 12-month-old say?

Most 12-month-olds say fewer than three words, and plenty say none at all. The median first birthday arrives with one or two words in hand, often "mama" or "dada" used for the right person. The CDC's 12-month checkpoint is not a count: it asks whether your baby waves bye-bye and calls a parent by a special name. Silence at exactly twelve months is ordinary. What you want to see is babbling with the rhythm of speech, pointing at things to show you, and a response when you say their name.

How many words should a 14-month-old say?

There is no official checkpoint at 14 months. The nearest ones sit at 15 and 18 months, so a 14-month-old is measured against the 15-month bar a few weeks early: trying to say one or two words besides "mama" and "dada." In practice most 14-month-olds have somewhere between two and ten words, and the spread at this age is wider than at any point before it. A 14-month-old with three words and a 14-month-old with thirty are both unremarkable. (The same applies at 13 months.)

How many words should a 15-month-old say?

The CDC's 15-month checkpoint asks for one or two words besides "mama" and "dada." That is the floor, and it is deliberately low: these checklists mark the age by which about three in four children have a skill, not the age by which yours should. Typical 15-month-olds run from a handful of words to a couple of dozen. If your child has two words and is pointing, gesturing, and following simple requests, they have cleared the bar with room to spare.

How many words should a 16-month-old say?

Sixteen months is where the median child begins the climb toward 50 words. There is no CDC checkpoint at this age, so the 15-month bar still applies. What changes around now is the shape of the growth: many toddlers who added a word every few weeks start adding several a week. If that acceleration has not started yet, it is not late. It commonly begins anywhere from 16 to 20 months.

How many words should a 17-month-old say?

No checkpoint exists at 17 months either, and the 18-month one is four weeks away. That makes this a useful month to stop counting and start watching. Is the number going up, even slowly? Does your toddler point at something to show you rather than only to demand it? Do they follow a simple instruction without a gesture to help? Those three answers predict more than any word total you could write down this month.

How many words should an 18-month-old say?

The CDC's 18-month checkpoint asks for three or more words besides "mama" and "dada." Three. Not fifty. This is the number most parents are surprised by, because the average 18-month-old says considerably more, often somewhere between 20 and 100 words. Both facts are true at once, and the gap between them is the whole reason this page exists. Below three words at 18 months, especially alongside little pointing or babbling, is worth a conversation with your pediatrician rather than another month of waiting.

How many words should a 19- to 21-month-old say?

This is the window where the median child crosses 50 words and the two-word combinations start. Vocabulary in this stretch often stops growing in a straight line and starts growing in bursts, a pattern researchers have been arguing about for decades. Some toddlers add fifty words in a month. Others add five, then forty. Neither pattern is the concerning one. The concerning one is a number that stops moving entirely for several months.

How many words should a 2-year-old say?

At 24 months the checkpoint changes shape: the CDC looks for at least two words used together, like "more milk." In the American CDI data, two-year-olds average 319 words with a standard deviation of 175, so one typical child says 150 on their second birthday and another says 500. The number that matters here is not the average but the threshold: fewer than 50 words or no two-word combinations at 24 months is the late-talker checkpoint, and it warrants an evaluation. It flags roughly 10 to 20 percent of toddlers, most of whom catch up on their own.

How many words should a 30-month-old say?

The CDC asks for about 50 words at 30 months. The median child says roughly 570. That factor of ten is not an error in either number. One is a tripwire and the other is a portrait, and confusing them is how a completely typical toddler ends up worrying their parents at 3am. At this age most children are also stringing two or more words together with an action word in the mix, as in "doggy run."

How many words should a 3-year-old say?

By 36 months the counting stops being useful. Vocabulary checklists max out and researchers switch to measuring sentences instead. The CDC's checkpoint is conversational rather than numerical: can your child hold a short back-and-forth with you, at least two exchanges deep? A stranger should also understand most of what your three-year-old says, which is a separate skill from vocabulary and worth raising with your pediatrician if it is not happening.

Why the average toddler doesn't exist

Look at the 30-month row again. The median child says roughly 570 words. The CDC's checkpoint for the same age is "says about 50 words." Both numbers are correct. They differ by a factor of ten because they answer different questions. One describes the middle of the pack; the other marks the point where a missing skill deserves a professional's attention. We unpack that percentile logic in when do babies say their first words.

And the middle of the pack is a wide place. In the American CDI data collected by the Wordbank project, two-year-olds average 319 words with a standard deviation of 175. In plain terms: one typical child on their second birthday says 150 words, another says 500, and neither is remarkable. Some two-year-olds in the data produce nearly all 680 words on the form; others, a handful.

This is why a number you overheard at the playground can't tell you anything about your child. The honest comparison isn't your toddler against an average. It's your toddler against their own last month.

What counts as a word? Count generously

Most parents undercount, because they count like a dictionary. Researchers count like this: a consistent sound used for a consistent meaning.

If your child hears two languages, count everything in both and add them up. A toddler with 30 English words and 25 Romanian words has 55 words, full stop, and measuring either language alone will make a typical bilingual child look delayed. That arithmetic is exactly what the word book inside Saylings does on its own, one language column at a time, and it's covered properly in raising a bilingual baby.

Growing the number, without drilling

No flashcards. Toddlers learn words from the person who loves them narrating the world, and the research on what helps keeps pointing at the same four unglamorous moves:

• Narrate, don't quiz. "You're pushing the red truck" teaches more than "what color is the truck?"
• Answer every attempt. A grunt and a point deserve a reply with the word in it: "The banana! You want the banana."
• Add one word back. When they say "more," hand it over with "more milk." One word up from wherever they are.
• Reread the same books. The fortieth reading of the same book is not a rut. Repetition is precisely how the words stick.

When the number actually matters

Averages are for reassurance. Floors are for action. There are exactly three moments to act on a word count rather than admire it:

• 18 months, fewer than three words and, more importantly, little babbling, pointing, or understanding. The words are one gauge; the machinery around them is the better one.
• 24 months, fewer than 50 words or no two-word combinations. This is the classic late-talker checkpoint, and it flags roughly 10 to 20 percent of toddlers. Most of them catch up on their own, but an evaluation buys certainty either way.
• Any age, losing words they used to have. Regression is the one finding that outranks every reassurance on this page. That's a call this week, not this quarter.

If one of those describes your house, the calm next steps are laid out in what's normal at 18 months and the 2-year-old who understands but doesn't talk. And if a doctor says wait but your gut disagrees, ask for the referral anyway. An evaluation that comes back fine costs an afternoon.

Everyone else's toddler will hit these numbers in a different order, at different ages, with different words. Yours will too. That's not the caveat. That's the finding.

Common questions

Is 10 words at 18 months normal?

Yes. The CDC's 18-month checklist looks for a child who tries to say three or more words besides "mama" and "dada," and 10 clears that comfortably. What matters more than the count at this age is the machinery around it: pointing, gestures, understanding simple requests, and a number that keeps creeping up month over month.

Do animal sounds, signs, and made-up words count as words?

Yes, count them. A word is a consistent sound used for a consistent meaning. If "baba" always means bottle, it's a word. "Moo" for cow is a word. A sign used reliably for "more" counts as communication. Count your child's version, not the dictionary's.

When do toddlers start combining words?

Usually once their vocabulary reaches roughly 50 words, which the median child does between 16 and 20 months. Two-word combinations like "more milk" typically follow, and the CDC's 24-month checklist looks for at least two words said together.

This article is general information for parents, not medical advice. Every child develops at their own pace. If you have concerns about your child's speech or hearing, talk to your pediatrician.