The Sau surname
In the 2000 U.S. Census, 239 people carried this name — #75,219 among all U.S. surnames, about 1 in every 1,111,100 people counted.
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In France’s civil register
France’s register of deaths holds 99 people named Sau.
34 of them were born outside France. Those born in France came from 11 départements, most often Haute-Garonne.
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 Belgium’s population register
At least 39 people named Sau live in Belgium.
Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in East Flanders.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
Nearby in the index
Surnames next to Sau.
- Sastre 487 · U.S. census
- Satin 322 · U.S. census
- Satori 131 · U.S. census
- Satre 607 · U.S. census
- Satta 137 · U.S. census
- Sattler 4,599 · U.S. census
- Saubert 206 · U.S. census
- Sauce 254 · U.S. census
- Saucier 6,344 · U.S. census
- Saude 154 · U.S. census
- Sauder 2,521 · U.S. census
- Sauer 15,474 · U.S. census
When the index is not enough
This page says where Sau 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.