The Lac surname
In the 2010 U.S. Census, 696 people carried this name — #32,935 among all U.S. surnames, about 1 in every 416,700 people counted. That is up 43% from 487 in 2000.
In France’s civil register
France’s register of deaths holds 730 people named Lac.
10 of them were born outside France. Those born in France came from 44 départements, most often Cantal.
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 Poland’s population register
31 people named Lac have a registered home in Poland.
Of the 35 in Poland’s national register, these are the ones with a permanent address on file. They live in 3 of Poland’s 16 voivodeships, most of all in Subcarpathian.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where 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 the Nordic population registers
44 people named Lac 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 Lac.
- Labre 141 · U.S. census
- Labrosse 480 · U.S. census
- Labrot 151 · U.S. census
- Labrousse 112 · U.S. census
- Labruyere 326 · U.S. census
- Labry 212 · U.S. census
- Lacaille 169 · U.S. census
- Lacambra 205 · U.S. census
- Lacarte 126 · U.S. census
- Lacas 133 · U.S. census
- Lacasse 3,307 · U.S. census
- Lacaze 1,123 · U.S. census
When the index is not enough
This page says where Lac 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.