RANKING · 2020 CENSUS · 500 SHOWN OF 3,135
Most foreign-born residents, US counties · 2020
US counties ranked by the share of residents born outside the US (2020 ACS). Miami-Dade County, Florida leads at 54.0%. 3,135 counties qualify in total. California carries 6 of the top 25 entries.
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RANKPLACESTATEPOPFOREIGN-BORNVS 2010
USUnited States331,449,28113.5%–
UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS
Frequently asked
Which county has the highest foreign-born?
Miami-Dade County, Florida ranks #1 with 54.0% (2020 Decennial Census).
What are the top 5 counties by foreign-born?
Miami-Dade County, Florida, Queens County, New York, Hudson County, New Jersey, Aleutians West Census Area, Alaska, Santa Clara County, California.
How many counties are in this ranking?
3,135 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.
How is foreign-born measured?
Share of residents born outside the United States. Source: US Census Bureau, 2020 Decennial Census.