The Kuca surname
In the 2000 U.S. Census, 186 people carried this name — #91,801 among all U.S. surnames, about 1 in every 1,428,600 people counted.
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In Poland’s population register
2,024 people named Kuca have a registered home in Poland.
Of the 2,219 in Poland’s national register, these are the ones with a permanent address on file. They live in all 16 of Poland’s voivodeships, most of all in Subcarpathian.
Where it concentrates, on the mapWhere they live today
PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.
In France’s civil register
France’s register of deaths holds 53 people named Kuca.
25 of them were born outside France. Those born in France came from 10 départements, most often Oise.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
Nearby in the index
Surnames next to Kuca.
- Kubiak 3,581 · U.S. census
- Kubica 597 · U.S. census
- Kubicki 1,010 · U.S. census
- Kubik 2,945 · U.S. census
- Kubler 408 · U.S. census
- Kuc 512 · U.S. census
- Kucharski 2,432 · U.S. census
- Kuchler 645 · U.S. census
- Kuchta 1,899 · U.S. census
- Kuczynski 1,528 · U.S. census
- Kuder 906 · U.S. census
- Kudla 1,010 · U.S. census
When the index is not enough
This page says where Kuca is.
A volume says what happened to it.
Every page in the index is free and stays free. The Heritage Volume is the long form: the full paper trail, the arms, the crossing — bound, and yours.