Counties in Montana by foreign-born share of the population

Prairie County had the highest foreign-born share of the population of 56 counties in 2023, at 6.9%. Garfield County had the lowest, at 0%. The median was 1.7% and the figure for Montana was 2.3%. Source: the U.S. Census Bureau.

Highest6.9Prairie County
Median1.756 counties
Montana2.3History

All counties, 2023

CSVChart (SVG)

Prairie CountyPrairie County: 6.9 %6.9Gallatin CountyGallatin County: 4.1 %4.1Wibaux CountyWibaux County: 3.8 %3.8Lincoln CountyLincoln County: 3.4 %3.4Toole CountyToole County: 3.4 %3.4Flathead CountyFlathead County: 3 %3Missoula CountyMissoula County: 2.8 %2.8Richland CountyRichland County: 2.8 %2.8Madison CountyMadison County: 2.8 %2.8Meagher CountyMeagher County: 2.7 %2.7Ravalli CountyRavalli County: 2.6 %2.6Park CountyPark County: 2.3 %2.3Lake CountyLake County: 2.3 %2.3Jefferson CountyJefferson County: 2.2 %2.2Daniels CountyDaniels County: 2.1 %2.1Fallon CountyFallon County: 2.1 %2.1Granite CountyGranite County: 2.1 %2.1Sheridan CountySheridan County: 2 %2Powder River CountyPowder River County: 2 %2Treasure CountyTreasure County: 2 %2Cascade CountyCascade County: 1.9 %1.9Lewis and Clark CountyLewis and Clark County: 1.9 %1.9Musselshell CountyMusselshell County: 1.9 %1.9Yellowstone CountyYellowstone County: 1.8 %1.8Sanders CountySanders County: 1.8 %1.8Powell CountyPowell County: 1.8 %1.8Liberty CountyLiberty County: 1.8 %1.8Fergus CountyFergus County: 1.7 %1.7Judith Basin CountyJudith Basin County: 1.7 %1.7Dawson CountyDawson County: 1.7 %1.7Pondera CountyPondera County: 1.7 %1.7Mineral CountyMineral County: 1.6 %1.6Custer CountyCuster County: 1.6 %1.6Phillips CountyPhillips County: 1.5 %1.5Rosebud CountyRosebud County: 1.5 %1.5Broadwater CountyBroadwater County: 1.4 %1.4McCone CountyMcCone County: 1.4 %1.4Silver Bow CountySilver Bow County: 1.4 %1.4Wheatland CountyWheatland County: 1.4 %1.4Carbon CountyCarbon County: 1.2 %1.2Chouteau CountyChouteau County: 1.1 %1.1Blaine CountyBlaine County: 1.1 %1.1Roosevelt CountyRoosevelt County: 1.1 %1.1Stillwater CountyStillwater County: 1.1 %1.1Sweet Grass CountySweet Grass County: 1.1 %1.1Petroleum CountyPetroleum County: 1 %1Valley CountyValley County: 1 %1Hill CountyHill County: 0.8 %0.8Beaverhead CountyBeaverhead County: 0.8 %0.8Glacier CountyGlacier County: 0.7 %0.7Golden Valley CountyGolden Valley County: 0.6 %0.6Deer Lodge CountyDeer Lodge County: 0.6 %0.6Big Horn CountyBig Horn County: 0.5 %0.5Carter CountyCarter County: 0.4 %0.4Teton CountyTeton County: 0.4 %0.4Garfield CountyGarfield County: 0 %0
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2023 (%)Change on 2022
1Prairie County6.9-1.2 pts
2Gallatin County4.1+0.3 pts
3Wibaux County3.8-0.1 pts
4Lincoln County3.4-0.2 pts
4Toole County3.4-0.9 pts
6Flathead County3+0.1 pts
7Missoula County2.8-0.5 pts
8Richland County2.8-0.5 pts
9Madison County2.8+0.2 pts
10Meagher County2.7-0.3 pts
11Ravalli County2.6+0.6 pts
12Park County2.3-0.1 pts
13Lake County2.3-0.2 pts
14Jefferson County2.2-0 pts
15Daniels County2.1-1 pts
16Fallon County2.1+1.1 pts
17Granite County2.1-0.4 pts
18Sheridan County2+0.3 pts
19Powder River County2+0.3 pts
20Treasure County2+0.3 pts
21Cascade County1.9+0.4 pts
22Lewis and Clark County1.90 pts
23Musselshell County1.9-0 pts
24Yellowstone County1.8-0 pts
25Sanders County1.8+0.8 pts
26Powell County1.8+0.4 pts
27Liberty County1.8+1.2 pts
28Fergus County1.7+0.2 pts
29Judith Basin County1.7+0.3 pts
30Dawson County1.7+0.4 pts
30Pondera County1.7-0.2 pts
32Mineral County1.6+0.1 pts
33Custer County1.6-0.3 pts
34Phillips County1.5-0.7 pts
35Rosebud County1.5-0.3 pts
36Broadwater County1.4-0 pts
37McCone County1.4+0.1 pts
38Silver Bow County1.4-0 pts
38Wheatland County1.4-1.4 pts
40Carbon County1.2-0 pts
41Chouteau County1.10 pts
42Blaine County1.1+0.1 pts
42Roosevelt County1.1+0.1 pts
42Stillwater County1.1-0.1 pts
45Sweet Grass County1.1+0.3 pts
46Petroleum County1-0.2 pts
47Valley County1+0.5 pts
48Hill County0.80 pts
49Beaverhead County0.8-0.4 pts
50Glacier County0.7-0.1 pts
51Golden Valley County0.6-0.7 pts
52Deer Lodge County0.6-1 pts
53Big Horn County0.5-0.3 pts
54Carter County0.4+0.1 pts
54Teton County0.4-0.7 pts
56Garfield County00 pts

Other periods

About this ranking

People who were not US citizens at birth, as a percentage of the total population. Includes naturalized citizens, lawful permanent residents, temporary migrants and unauthorized immigrants. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Based on place of birth, not nationality: a naturalized citizen counts as foreign born, and people born in Puerto Rico, the US island areas or abroad to American parents count as native. Not comparable with foreign_population_share, which counts foreign nationals in Spain and the EU. Calculated from counts in ACS table B05002, which are stored as inputs.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b05002.dat. Retrieved 2026-10-09.

Use this data in your AI agent

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Rank Counties in Montana by foreign-born share of the population using official data, and cite the source.
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Questions

Which county has the highest foreign-born share of the population?

Prairie County, with 6.9% in 2023, according to the U.S. Census Bureau.

Which county has the lowest foreign-born share of the population?

Garfield County, with 0% in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs. Retrieved 2026-10-09.

Foreign-born population share: other rankings

Counties in Montana: more rankings