The Sondag surname
In the 2010 U.S. Census, 415 people carried this name — #50,362 among all U.S. surnames, about 1 in every 714,300 people counted. That is down 3% from 426 in 2000.
In France’s civil register
France’s register of deaths holds 134 people named Sondag.
8 of them were born outside France. Those born in France came from 13 départements, most often Moselle.
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 49 people named Sondag 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 Luxembourg Province.
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 Sondag.
- Som 1,910 · U.S. census
- Soma 971 · U.S. census
- Somers 10,762 · U.S. census
- Somma 1,354 · U.S. census
- Sommer 11,662 · U.S. census
- Son 10,094 · U.S. census
- Song 25,110 · U.S. census
- Songy 507 · U.S. census
- Sonier 490 · U.S. census
- Sonmez 163 · U.S. census
- Sonneville 129 · U.S. census
- Sonnier 6,068 · U.S. census
When the index is not enough
This page says where Sondag 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.