The Sommer surname
In the 2010 U.S. Census, 11,662 people carried this name — #3,080 among all U.S. surnames, about 1 in every 25,300 people counted. About the same as in 2000 (11,624).
In Switzerland’s population statistics
5,098 people named Sommer live in Switzerland.
They live in all 26 of Switzerland’s cantons, most of all in Bern.
Where it concentrates, on the mapWhere they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
In Argentina’s national register
At least 1,175 people named Sommer live in Argentina.
RENAPER only publishes a name in a province when more than ten people there share it, so the real number is higher. Most of them live in Buenos Aires Province.
Where it concentrates, on the mapWhere they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In France’s civil register
France’s register of deaths holds 950 people named Sommer.
100 of them were born outside France. Those born in France came from 50 départements, most often Bas-Rhin.
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
689 people named Sommer have a registered home in Poland.
Of the 928 in Poland’s national register, these are the ones with a permanent address on file. They live in 14 of Poland’s 16 voivodeships, most of all in Silesian.
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 Belgium’s population register
At least 48 people named Sommer 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 Hainaut.
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.
In the Nordic population registers
844 people named Sommer are counted in Norway, Sweden and Finland.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published. Norway publishes only surnames with 200 or more bearers. Finland counts its citizens, at home or abroad.
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) · Statistics Norway (SSB, ssb.no), table 12891, 2025 — CC BY 4.0 · Digital and Population Data Services Agency (DVV), Finland, surname statistics, August 2026 — CC BY 4.0.
In print
Sommer in American newspapers,
1893–1962.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 325,753 pages in all carry the name.
Who carried it
People named Sommer,
with a public archive behind them.
-
Anton Sommer 1816–1888 · writer -
Giorgio Sommer 1834–1914 · photographer -
Hans Sommer 1837–1922 · composer -
Wilhelm Sommer 1852–1900 · physician -
Robert Sommer 1864–1937 · psychiatrist
Wikidata and Wikimedia Commons (CC0) · 143 lives in all are documented under this name.
Nearby in the index
Surnames next to Sommer.
- Soltys 1,412 · U.S. census
- Soltysiak 359 · U.S. census
- Som 1,910 · U.S. census
- Soma 971 · U.S. census
- Somers 10,762 · U.S. census
- Somma 1,354 · U.S. census
- Son 10,094 · U.S. census
- Sondag 415 · U.S. census
- Song 25,110 · U.S. census
- Songy 507 · U.S. census
- Sonier 490 · U.S. census
- Sonmez 163 · U.S. census
When the index is not enough
This page says where Sommer 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.