The Biros surname
In the 2010 U.S. Census, 529 people carried this name — #41,164 among all U.S. surnames, about 1 in every 555,600 people counted. That is up 6% from 497 in 2000.
In Poland’s population register
346 people named Biros have a registered home in Poland.
Of the 385 in Poland’s national register, these are the ones with a permanent address on file. They live in 7 of Poland’s 16 voivodeships, most of all in Lesser 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 75 people named Biros.
2 of them were born outside France. Those born in France came from 14 départements, most often Ariège.
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 Biros.
- Birkenstock 168 · U.S. census
- Birkle 383 · U.S. census
- Birling 136 · U.S. census
- Birnbaum 3,211 · U.S. census
- Biro 2,241 · U.S. census
- Biron 1,793 · U.S. census
- Birr 981 · U.S. census
- Birrer 277 · U.S. census
- Bis 358 · U.S. census
- Bisbal 157 · U.S. census
- Bisch 513 · U.S. census
- Bischoff 6,897 · U.S. census
When the index is not enough
This page says where Biros 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.