The #1 Baby Name Leads Only 15 of 51 States

Liam is the top boys' name nationally for 2025. It is also the top name in only 15 of the 51 jurisdictions the Social Security Administration reports on. The other 36 have a different name at #1.

On the girls' side the gap is wider and stranger. Olivia is #1 nationally and leads 7 states. Charlotte, which is not the national #1, leads 28. A name can win most of the map and still finish second overall, because winning 28 medium states counts for less than placing well in the few very large ones.

Boys' names cluster harder. 8 distinct names hold a #1 spot somewhere, against 9 for girls. The top three boys' names between them lead 41 states.

That asymmetry is stable across years and it is the single most useful thing to know about this data. Parents naming a boy are choosing from a narrower pool than parents naming a girl, so a boys' name at rank 20 is genuinely less common than a girls' name at rank 20.

Look at where each winner sits and the pattern is not random. The states that share a #1 tend to share a border, and the blocks line up roughly with the census regions rather than with anything about state law or size. Naming fashion moves the way other cultural habits move, by proximity and contact, so a state resembles its neighbours before it resembles the national average.

That is also why the national list lags. A name spreading outward from one region shows up in several state lists before it accumulates enough total births to move nationally. If you want an early signal of where the national list is heading in three years, the state lists are where it is visible first.

The exception worth noticing is the handful of states whose #1 appears nowhere else. Those are usually small-population states where a few hundred births decide the top spot, so the winner is a genuinely local preference rather than the leading edge of a trend.

If you are trying to work out how often your child will meet someone with the same name, the national rank is the wrong number. Your state's rank is closer, and even that averages over a whole state.

The gap can be large. A name at rank 8 nationally can sit at rank 25 in your state, or the reverse, and neither figure is wrong. They answer different questions: the national rank tells you how common the name is among American children, the state rank tells you how common it will be in your child's classroom.

The practical version: check the state page, not the national one. Every state has its own page here with the full 2025 top twenty for both sexes and the year by year history of which name held #1, so you can see whether your state's current leader is a long-running favourite or something that only just arrived.