The Arnold surname
In the 2010 U.S. Census, 138,893 people carried this name — #201 among all U.S. surnames, about 1 in every 2,120 people counted. That is up 2% from 136,315 in 2000.
In Switzerland’s population statistics
8,635 people named Arnold live in Switzerland.
They live in all 26 of Switzerland’s cantons, most of all in Uri.
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 France’s civil register
France’s register of deaths holds 2,417 people named Arnold.
216 of them were born outside France. Those born in France came from 72 départements, most often Haut-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 Argentina’s national register
At least 1,513 people named Arnold 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 Ireland’s birth registers, 1890
Ireland registered 22 births for the Arnold name in 1890.
They were registered in all four provinces, most of all in Ulster. By the Registrar-General’s own method — births multiplied by 44.38 — that is about 1,000 people bearing the name in Ireland at the time. The Registrar-General’s note on the name: “Antrim and Dublin.”
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they were born, 1890
Registrar-General for Ireland, «Special Report on Surnames in Ireland» (R. E. Matheson, 1894), births index of 1890 — public domain.
In Poland’s population register
329 people named Arnold have a registered home in Poland.
Of the 510 in Poland’s national register, these are the ones with a permanent address on file. They live in all 16 of Poland’s voivodeships, most of all in Podlaskie.
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 161 people named Arnold 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 Liège.
Where it concentrates, on the mapWhere 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
210 people named Arnold are counted in Sweden and Finland.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published. 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) · Digital and Population Data Services Agency (DVV), Finland, surname statistics, August 2026 — CC BY 4.0.
In print
Arnold in American newspapers,
1885–1910.
Chronicling America, Library of Congress — digitised newspapers in the public domain.
Who carried it
People named Arnold,
with a public archive behind them.
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Emil Arnold-Holm d. 1938 · writer
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Hattie Arnold Clark d. 1918 · writer
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Ruth M. Arnold d. 1978 · mycologist
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Martin Arnold d. 1493 · mayor
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Christoph Arnold d. 1616 · jurist
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John Arnold d. 1433 · politician
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Arnold.
- Arnaudo 111 · U.S. census
- Arnault 117 · U.S. census
- Arnaut 184 · U.S. census
- Arndt 14,031 · U.S. census
- Arne 611 · U.S. census
- Arnette 2,544 · U.S. census
- Arnoldi 367 · U.S. census
- Arnoldy 373 · U.S. census
- Arnon 102 · U.S. census
- Arnone 2,848 · U.S. census
- Arnould 213 · U.S. census
- Arnoult 261 · U.S. census
When the index is not enough
This page says where Arnold 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.