Where Case is used most

Alaska: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateAK no dataAlabama: 2.7× the national rate — 38 births, 2023–2025AL 2.7×5Arkansas: 3.7× the national rate — 30 births, 2023–2025AR 3.7×1Arizona: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateAZ no dataCalifornia: 34 births, 2023–2025 — not among the top 5CA 34Colorado: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateCO no dataConnecticut: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateCT no dataDistrict of Columbia: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateDC no dataDelaware: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateDE no dataFlorida: 46 births, 2023–2025 — not among the top 5FL 46Georgia: 45 births, 2023–2025 — not among the top 5GA 45Hawaii: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateHI no dataIowa: 3.1× the national rate — 27 births, 2023–2025IA 3.1×3Idaho: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateID no dataIllinois: 28 births, 2023–2025 — not among the top 5IL 28Indiana: 33 births, 2023–2025 — not among the top 5IN 33Kansas: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateKS no dataKentucky: 3.0× the national rate — 39 births, 2023–2025KY 3.0×4Louisiana: 31 births, 2023–2025 — not among the top 5LA 31Massachusetts: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateMA no dataMaryland: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateMD no dataMaine: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateME no dataMichigan: 32 births, 2023–2025 — not among the top 5MI 32Minnesota: 26 births, 2023–2025 — not among the top 5MN 26Missouri: 36 births, 2023–2025 — not among the top 5MO 36Mississippi: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateMS no dataMontana: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateMT no dataNorth Carolina: 37 births, 2023–2025 — not among the top 5NC 37North Dakota: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateND no dataNebraska: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateNE no dataNew Hampshire: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateNH no dataNew Jersey: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateNJ no dataNew Mexico: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateNM no dataNevada: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateNV no dataNew York: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateNY no dataOhio: 59 births, 2023–2025 — not among the top 5OH 59Oklahoma: 3.2× the national rate — 36 births, 2023–2025OK 3.2×2Oregon: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateOR no dataPennsylvania: 28 births, 2023–2025 — not among the top 5PA 28Rhode Island: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateRI no dataSouth Carolina: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateSC no dataSouth Dakota: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateSD no dataTennessee: 48 births, 2023–2025 — not among the top 5TN 48Texas: 201 births, 2023–2025 — not among the top 5TX 201Utah: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateUT no dataVirginia: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateVA no dataVermont: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateVT no dataWashington: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateWA no dataWisconsin: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateWI no dataWest Virginia: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateWV no dataWyoming: Fewer than 25 recorded here in 2023–2025, not enough for a reliable rateWY no data
Numbered states are Case’s top 5 by concentration, pooled over 2023–2025 against the national rate for boys. Hatched states have fewer than 25 recorded births in that window — not enough to compute a reliable rate, which is different from the name being uncommon there.
Top 5, by rank Enough data, not top 5 Insufficient data
Case’s top 5 states by concentration
RankStateTimes the national rateBirths pooled
1Arkansas3.7×30
2Oklahoma3.2×36
3Iowa3.1×27
4Kentucky3.0×39
5Alabama2.7×38
See every state with enough data, not only the top 5
Every state with at least 25 pooled births of Case, 2023–2025
StateBirths pooledIn the top 5?
Texas201No
Ohio59No
Tennessee48No
Florida46No
Georgia45No
Kentucky39Yes, #4
Alabama38Yes, #5
North Carolina37No
Missouri36No
Oklahoma36Yes, #2
California34No
Indiana33No
Michigan32No
Louisiana31No
Arkansas30Yes, #1
Illinois28No
Pennsylvania28No
Iowa27Yes, #3
Minnesota26No

Figures from the US Social Security Administration’s 2025 release. How these numbers are made. This link reproduces exactly what you see, so it’s safe to share.