The Alonzo surname
In the 2000 U.S. Census, 16,326 people carried this name — #2,038 among all U.S. surnames, about 1 in every 16,500 people counted.
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In France’s civil register
France’s register of deaths holds 470 people named Alonzo.
186 of them were born outside France. Those born in France came from 54 départements, most often Hauts-de-Seine.
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 Switzerland’s population statistics
27 people named Alonzo live in Switzerland.
They live in 5 of Switzerland’s 26 cantons, most of all in Geneva.
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 · names with fewer than 3 bearers in a canton are not published.
Nearby in the index
Surnames next to Alonzo.
- Almy 1,094 · U.S. census
- Aloi 893 · U.S. census
- Aloisi 414 · U.S. census
- Aloisio 766 · U.S. census
- Alonso 20,802 · U.S. census
- Alonzi 257 · U.S. census
- Aloy 140 · U.S. census
- Alpha 381 · U.S. census
- Alphonse 934 · U.S. census
- Alphonso 592 · U.S. census
- Alsina 338 · U.S. census
- Alt 5,587 · U.S. census
When the index is not enough
This page says where Alonzo 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.