The Ciolek surname
In the 2010 U.S. Census, 511 people carried this name — #42,455 among all U.S. surnames, about 1 in every 588,200 people counted. That is up 22% from 420 in 2000.
In Poland’s population register
4,401 people named Ciolek have a registered home in Poland.
Of the 4,873 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 Lublin.
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 66 people named Ciolek.
30 of them were born outside France. Those born in France came from 12 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.
In Argentina’s national register
At least 60 people named Ciolek live in Argentina.
RENAPER only publishes a name in a province when more than ten people there share it, so the real number is higher. Most of them live in Chaco.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
Nearby in the index
Surnames next to Ciolek.
- Cinque 765 · U.S. census
- Cinquini 167 · U.S. census
- Cintas 163 · U.S. census
- Cinti 125 · U.S. census
- Ciocca 587 · U.S. census
- Cioffi 2,937 · U.S. census
- Ciolfi 223 · U.S. census
- Cioni 290 · U.S. census
- Ciotta 203 · U.S. census
- Ciotti 1,271 · U.S. census
- Cipolla 2,658 · U.S. census
- Cipres 405 · U.S. census
When the index is not enough
This page says where Ciolek 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.