The Petrus surname
In the 2000 U.S. Census, 1,714 people carried this name — #15,652 among all U.S. surnames, about 1 in every 156,300 people counted.
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In Poland’s population register
674 people named Petrus have a registered home in Poland.
Of the 876 in Poland’s national register, these are the ones with a permanent address on file. They live in 15 of Poland’s 16 voivodeships, most of all in Lower Silesian.
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 France’s civil register
France’s register of deaths holds 205 people named Petrus.
54 of them were born outside France. Those born in France came from 24 départements, most often Guadeloupe.
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 Belgium’s population register
At least 100 people named Petrus 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 East Flanders.
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
85 people named Petrus live in Switzerland.
They live in 6 of Switzerland’s 26 cantons, most of all in Aargau.
Where they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss · names with fewer than 3 bearers in a canton are not published.
Nearby in the index
Surnames next to Petrus.
- Petronio 408 · U.S. census
- Petrou 365 · U.S. census
- Petrov 1,257 · U.S. census
- Petrovic 1,496 · U.S. census
- Petrovitch 112 · U.S. census
- Petrucci 2,990 · U.S. census
- Petruzzi 1,074 · U.S. census
- Petry 5,300 · U.S. census
- Pett 1,042 · U.S. census
- Pette 115 · U.S. census
- Petter 654 · U.S. census
- Pettes 251 · U.S. census
When the index is not enough
This page says where Petrus is.
A volume says what happened to it.
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