The Baier surname
In the 2010 U.S. Census, 5,238 people carried this name — #6,482 among all U.S. surnames, about 1 in every 56,200 people counted. That is up 6% from 4,959 in 2000.
In Argentina’s national register
At least 936 people named Baier 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 Switzerland’s population statistics
490 people named Baier live in Switzerland.
They live in 19 of Switzerland’s 26 cantons, most of all in Zurich.
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 France’s civil register
France’s register of deaths holds 96 people named Baier.
32 of them were born outside France. Those born in France came from 18 départements, most often Haut-Rhin.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In Poland’s population register
44 people named Baier have a registered home in Poland.
Of the 90 in Poland’s national register, these are the ones with a permanent address on file. They live in 8 of Poland’s 16 voivodeships, most of all in Greater Poland.
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
92 people named Baier 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).
Who carried it
People named Baier,
with a public archive behind them.
-
Johann Wilhelm Baier 1647–1695 · writer -
Johann Wilhelm Bajer 1675–1729 · naturalist -
Johann Jacob Baier 1677–1735 · naturalist -
Ferdinand Jakob Baier 1707–1788 · physician -
Francisco Pérez Bayer 1711–1794 · writer -
Melchior Baier the Elder 1495–1577 · goldsmith
Wikidata and Wikimedia Commons (CC0) · 8 lives in all are documented under this name.
Nearby in the index
Surnames next to Baier.
- Baha 241 · U.S. census
- Bahl 1,871 · U.S. census
- Bahr 7,731 · U.S. census
- Bahri 609 · U.S. census
- Bahu 146 · U.S. census
- Bai 3,148 · U.S. census
- Baietto 140 · U.S. census
- Bail 14,957 · U.S. census
- Baile 355 · U.S. census
- Bailey 277,845 · U.S. census
- Baillargeon 1,966 · U.S. census
- Baillie 1,659 · U.S. census
When the index is not enough
This page says where Baier 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.