The Sierra surname
In the 2010 U.S. Census, 35,770 people carried this name — #973 among all U.S. surnames, about 1 in every 8,240 people counted. That is up 37% from 26,181 in 2000.
In Argentina’s national register
At least 13,399 people named Sierra 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 France’s civil register
France’s register of deaths holds 470 people named Sierra.
172 of them were born outside France. Those born in France came from 48 départements, most often Gironde.
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
285 people named Sierra live in Switzerland.
They live in 16 of Switzerland’s 26 cantons, most of all in Vaud.
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 the Nordic population registers
24 people named Sierra 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
Sierra in American newspapers,
1885–1958.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 403,849 pages in all carry the name.
Nearby in the index
Surnames next to Sierra.
- Sieger 960 · U.S. census
- Siegfried 3,688 · U.S. census
- Siegler 1,618 · U.S. census
- Siegrist 2,681 · U.S. census
- Siegwald 118 · U.S. census
- Sieradzki 320 · U.S. census
- Siess 451 · U.S. census
- Sigal 598 · U.S. census
- Sigala 4,817 · U.S. census
- Sigalas 136 · U.S. census
- Sigel 1,339 · U.S. census
- Sigler 8,992 · U.S. census
When the index is not enough
This page says where Sierra 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.