Largest Welsh population, US states
US states ranked by the number of residents who are Welsh ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. California leads at 129,389. 51 states qualify in total. The top 25 average 52,655, against an all-states median of 21,448.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which state has the highest welsh population?
California ranks #1 with 129,389 (2024 American Community Survey).
What are the top 5 states by welsh population?
California, Pennsylvania, Texas, Ohio, Florida.
How many states are in this ranking?
51 states qualify after filtering for population minimums and data availability. The ranking covers 2024 ACS 5-year data.
How is welsh population measured?
Number of residents who are Welsh ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2024).