The Isaac surname
In the 2010 U.S. Census, 18,903 people carried this name — #1,898 among all U.S. surnames, about 1 in every 15,600 people counted. That is up 16% from 16,312 in 2000.
In France’s civil register
France’s register of deaths holds 1,189 people named Isaac.
70 of them were born outside France. Those born in France came from 68 départements, most often Seine-Maritime.
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 1,033 people named Isaac 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 Belgium’s population register
At least 94 people named Isaac 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 Antwerp.
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 Switzerland’s population statistics
87 people named Isaac live in Switzerland.
They live in 9 of Switzerland’s 26 cantons, most of all in Zurich.
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/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
In the Nordic population registers
292 people named Isaac is counted in Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published.
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).
In print
Isaac in American newspapers,
1895–1902.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 1,468,207 pages in all carry the name.
Who carried it
People named Isaac,
with a public archive behind them.
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Aaron Isaac 1730–1816 · businessperson -
Lucy Apollonia Wodehouse d. 1919
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John Whitmore Isaac d. 1884
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Amy Violet Isaac d. 1943
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Mary Isaac d. 1880
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Heinrich Isaac 1450–1517 · composer
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Isaac.
- Iriarte 977 · U.S. census
- Iribarren 311 · U.S. census
- Irigoyen 1,389 · U.S. census
- Irion 1,125 · U.S. census
- Iris 245 · U.S. census
- Irr 160 · U.S. census
- Isabel 1,122 · U.S. census
- Isabelle 1,154 · U.S. census
- Isac 190 · U.S. census
- Isaia 267 · U.S. census
- Isch 612 · U.S. census
- Iselin 368 · U.S. census
When the index is not enough
This page says where Isaac 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.