The Biernacki surname
In the 2010 U.S. Census, 1,006 people carried this name — #24,762 among all U.S. surnames, about 1 in every 294,100 people counted. That is up 5% from 956 in 2000.
Where the name comes from
The origin of the Biernacki surname
From Biernat + -cki (surname-forming suffix).
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Biernacki» (Polish), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Poland’s population register
12,814 people named Biernacki have a registered home in Poland.
Of the 14,027 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 Masovian.
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 92 people named Biernacki.
38 of them were born outside France. Those born in France came from 18 départements, most often Pas-de-Calais.
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 the Nordic population registers
22 people named Biernacki 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).
Who carried it
People named Biernacki,
with a public archive behind them.
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Alojzy Prosper Biernacki 1778–1854 · politician -
Nikodem Biernacki 1825–1892 · composer -
Nikodem Biernacki 1825–1892 · composer
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Nikodem Biernacki 1826–1892 · composer
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Nikodem Biernacki 1826–1892 · composer
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Kazimierz Biernacki 1629–1725 · historian
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Biernacki.
When the index is not enough
This page says where Biernacki 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.