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Most Foreign-Born Counties in America

US counties with the highest share of foreign-born residents. Foreign-born populations are concentrated near international gateway cities and agricultural regions with large immigrant workforces. Data from US Census Bureau ACS 2023.

Ranked by Foreign-Born Population. Click any location to see its full Census data profile. All figures are from the U.S. Census Bureau ACS 5-Year Estimates, 2023, so they are directly comparable across locations.

# Location Foreign-Born Population
251 Shasta County, California 14.5%
252 Petersburg Borough, Alaska 14.5%
253 Carroll County, Iowa 14.3%
254 Maricopa County, Arizona 14.3%
255 Washoe County, Nevada 14.3%
256 Chambers County, Texas 14.2%
257 Carter County, Montana 14.2%
258 Jefferson Parish, Louisiana 14.1%
259 Powder River County, Montana 14.1%
260 Rosebud County, Montana 14.0%
261 Henrico County, Virginia 13.9%
262 Magoffin County, Kentucky 13.9%
263 King County, Texas 13.8%
264 Worcester County, Massachusetts 13.8%
265 Liberty County, Texas 13.8%
266 Marion County, Texas 13.8%
267 Gooding County, Idaho 13.8%
268 Iowa County, Iowa 13.8%
269 Fulton County, Georgia 13.7%
270 Coahoma County, Mississippi 13.7%
271 Monmouth County, New Jersey 13.6%
272 McHenry County, Illinois 13.6%
273 Marion County, Oregon 13.6%
274 Warren County, Kentucky 13.5%
275 Naugatuck Valley Planning Region, Connecticut 13.4%
276 Stafford County, Virginia 13.4%
277 South Central Connecticut Planning Region, Connecticut 13.4%
278 Manatee County, Florida 13.4%
279 Crane County, Texas 13.4%
280 Bexar County, Texas 13.3%
281 Catahoula Parish, Louisiana 13.3%
282 Lehigh County, Pennsylvania 13.3%
283 Stewart County, Georgia 13.3%
284 Lake County, California 13.3%
285 Martin County, Indiana 13.2%
286 Oakland County, Michigan 13.2%
287 Northwest Arctic Borough, Alaska 13.2%
288 Russell County, Kentucky 13.1%
289 Saline County, Kansas 13.1%
290 Salt Lake County, Utah 13.0%
291 Frederick County, Maryland 13.0%
292 Atkinson County, Georgia 13.0%
293 Will County, Illinois 13.0%
294 Kearny County, Kansas 13.0%
295 Navarro County, Texas 12.9%
296 Jeff Davis County, Texas 12.8%
297 Baltimore County, Maryland 12.8%
298 Caldwell County, Texas 12.8%
299 Lauderdale County, Mississippi 12.8%
300 Power County, Idaho 12.8%