The Kasprzak surname
In the 2010 U.S. Census, 1,455 people carried this name — #18,819 among all U.S. surnames, about 1 in every 204,100 people counted. That is up 3% from 1,415 in 2000.
In Poland’s population register
15,923 people named Kasprzak have a registered home in Poland.
Of the 17,317 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 Greater Poland.
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 314 people named Kasprzak.
103 of them were born outside France. Those born in France came from 28 départements, most often Pas-de-Calais.
Where it concentrates, on the mapWhere they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In Belgium’s population register
At least 41 people named Kasprzak live in Belgium.
Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in Limburg.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In the Nordic population registers
38 people named Kasprzak is counted in Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published.
Counted, by country
Own calculations based on data from Statistics Sweden (SCB), surnames with at least two bearers, 31 December 2022 — CC BY 4.0 (names with 20 or more bearers shown).
Nearby in the index
Surnames next to Kasprzak.
- Karst 1,958 · U.S. census
- Kasbarian 173 · U.S. census
- Kaspar 1,954 · U.S. census
- Kasparian 790 · U.S. census
- Kasper 10,064 · U.S. census
- Kasperski 477 · U.S. census
- Kasprzyk 1,000 · U.S. census
- Kassa 1,669 · U.S. census
- Kassabian 447 · U.S. census
- Kassel 1,278 · U.S. census
- Kassem 1,121 · U.S. census
- Kassim 1,287 · U.S. census
When the index is not enough
This page says where Kasprzak 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.