The Williamson surname
In the 2000 U.S. Census, 112,216 people carried this name — #245 among all U.S. surnames, about 1 in every 2,400 people counted.
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In Switzerland’s population statistics
74 people named Williamson live in Switzerland.
They live in 8 of Switzerland’s 26 cantons, most of all in Geneva.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss · names with fewer than 3 bearers in a canton are not published.
In France’s civil register
France’s register of deaths holds 69 people named Williamson.
28 of them were born outside France. Those born in France came from 9 départements, most often Loire-Atlantique.
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 Poland’s population register
34 people named Williamson have a registered home in Poland.
Of the 85 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 Masovian.
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.
Nearby in the index
Surnames next to Williamson.
- Willer 2,305 · U.S. census
- Willers 571 · U.S. census
- Willette 3,602 · U.S. census
- William 17,164 · U.S. census
- Williame 147 · U.S. census
- Williams 1,534,042 · U.S. census
- Willie 4,815 · U.S. census
- Willier 321 · U.S. census
- Willig 924 · U.S. census
- Willinger 734 · U.S. census
- Willmann 717 · U.S. census
- Willy 942 · U.S. census
When the index is not enough
This page says where Williamson 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.