The Jacoby surname
In the 2010 U.S. Census, 9,372 people carried this name — #3,776 among all U.S. surnames, about 1 in every 31,400 people counted. That is up 2% from 9,225 in 2000.
In Belgium’s population register
At least 321 people named Jacoby 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.
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 France’s civil register
France’s register of deaths holds 299 people named Jacoby.
26 of them were born outside France. Those born in France came from 37 départements, most often Moselle.
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 70 people named Jacoby 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 City of Buenos Aires.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In Switzerland’s population statistics
51 people named Jacoby live in Switzerland.
They live in 5 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 Poland’s population register
20 people named Jacoby have a registered home in Poland.
Of the 40 in Poland’s national register, these are the ones with a permanent address on file. They live in 3 of Poland’s 16 voivodeships, most of all in West Pomeranian.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where 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 the Nordic population registers
40 people named Jacoby 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
Jacoby in American newspapers,
1900–1918.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 51,747 pages in all carry the name.
Who carried it
People named Jacoby,
with a public archive behind them.
-
Paul Jacoby d. 1889
-
Ernest Jacoby d. 1893
-
Friedrich Dtch. Jacoby d. 1942
-
Marsilius de Jacoby 1682–1742
-
Johanna Rosina de Jacoby 1726–1777
-
Charlotte Jacoby 1752–1832
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Jacoby.
- Jacob 24,688 · U.S. census
- Jacobe 519 · U.S. census
- Jacobelli 161 · U.S. census
- Jacobi 3,563 · U.S. census
- Jacobs 118,614 · U.S. census
- Jacobson 44,808 · U.S. census
- Jacomet 229 · U.S. census
- Jacomino 177 · U.S. census
- Jacot 670 · U.S. census
- Jacquard 126 · U.S. census
- Jacquart 292 · U.S. census
- Jacque 642 · U.S. census
When the index is not enough
This page says where Jacoby 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.