Data / Rankings / Foreign-born population share / Counties in Maryland

Counties in Maryland by foreign-born share of the population

Montgomery County had the highest foreign-born share of the population of 24 counties in 2022, at 32.7%. Garrett County had the lowest, at 1.3%. The median was 5.3% and the figure for Maryland was 15.7%. Source: the U.S. Census Bureau.

Highest32.7Montgomery County
Lowest1.3Garrett County
Median5.324 counties
Maryland15.7History

All counties, 2022

CSVChart (SVG)

Montgomery CountyMontgomery County: 32.7 %32.7Prince George's CountyPrince George's County: 24.1 %24.1Howard CountyHoward County: 21.8 %21.8Baltimore CountyBaltimore County: 12.2 %12.2Frederick CountyFrederick County: 12.1 %12.1Anne Arundel CountyAnne Arundel County: 9.2 %9.2Wicomico CountyWicomico County: 8.2 %8.2Baltimore cityBaltimore city: 8.1 %8.1Charles CountyCharles County: 7.5 %7.5Talbot CountyTalbot County: 7.5 %7.5Caroline CountyCaroline County: 6.3 %6.3Washington CountyWashington County: 5.6 %5.6St. Mary's CountySt. Mary's County: 5 %5Harford CountyHarford County: 5 %5Worcester CountyWorcester County: 4.9 %4.9Carroll CountyCarroll County: 4.7 %4.7Somerset CountySomerset County: 4.6 %4.6Queen Anne's CountyQueen Anne's County: 4.3 %4.3Kent CountyKent County: 4 %4Cecil CountyCecil County: 4 %4Dorchester CountyDorchester County: 3.9 %3.9Calvert CountyCalvert County: 3.7 %3.7Allegany CountyAllegany County: 2 %2Garrett CountyGarrett County: 1.3 %1.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2022 (%)Change on 2021
1Montgomery County32.7+0.4 pts
2Prince George's County24.1+0.7 pts
3Howard County21.8+0.4 pts
4Baltimore County12.2-0.1 pts
5Frederick County12.1+1 pts
6Anne Arundel County9.2+0.3 pts
7Wicomico County8.2-0.4 pts
8Baltimore city8.10 pts
9Charles County7.5+0.4 pts
10Talbot County7.5+0.7 pts
11Caroline County6.3+0.1 pts
12Washington County5.6+0.3 pts
13St. Mary's County5-0.3 pts
14Harford County50 pts
15Worcester County4.9+0.1 pts
16Carroll County4.7+0.4 pts
17Somerset County4.6+0.3 pts
18Queen Anne's County4.3-0.1 pts
19Kent County4+0.2 pts
20Cecil County4-0.1 pts
21Dorchester County3.9+0.4 pts
22Calvert County3.7+0.3 pts
23Allegany County2-0 pts
24Garrett County1.3-0.1 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/2022/table-based-SF/data/5YRData/acsdt5y2022-b05002.dat. Retrieved 2026-10-09.

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Rank Counties in Maryland 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?

Montgomery County, with 32.7% in 2022, according to the U.S. Census Bureau.

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

Garrett County, with 1.3% in 2022.

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 Maryland: more rankings