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

Counties in Maryland by foreign-born share of the population, 2024

Montgomery County had the highest foreign-born share of the population of 24 counties in 2024, at 33.6%. Garrett County had the lowest, at 1.4%. The median was 6% and the figure for Maryland was 16.6%. Source: the U.S. Census Bureau.

Highest33.6Montgomery County
Lowest1.4Garrett County
Median624 counties
Maryland16.6History

All counties, 2024

CSVChart (SVG)

Montgomery CountyMontgomery County: 33.6 %33.6Prince George's CountyPrince George's County: 25.3 %25.3Howard CountyHoward County: 22.8 %22.8Frederick CountyFrederick County: 13.8 %13.8Baltimore CountyBaltimore County: 13.2 %13.2Anne Arundel CountyAnne Arundel County: 10 %10Wicomico CountyWicomico County: 9.5 %9.5Baltimore cityBaltimore city: 9.3 %9.3Charles CountyCharles County: 8.5 %8.5Talbot CountyTalbot County: 8 %8Washington CountyWashington County: 6.6 %6.6Caroline CountyCaroline County: 6.1 %6.1Harford CountyHarford County: 6 %6Carroll CountyCarroll County: 5.5 %5.5Somerset CountySomerset County: 5.1 %5.1Queen Anne's CountyQueen Anne's County: 5.1 %5.1Worcester CountyWorcester County: 4.7 %4.7Dorchester CountyDorchester County: 4.5 %4.5St. Mary's CountySt. Mary's County: 4.3 %4.3Calvert CountyCalvert County: 4 %4Cecil CountyCecil County: 3.9 %3.9Kent CountyKent County: 3.7 %3.7Allegany CountyAllegany County: 2.1 %2.1Garrett CountyGarrett County: 1.4 %1.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2024 (%)Change on 2023
1Montgomery County33.6+0.3 pts
2Prince George's County25.3+0.4 pts
3Howard County22.8+0.6 pts
4Frederick County13.8+0.8 pts
5Baltimore County13.2+0.3 pts
6Anne Arundel County10+0.3 pts
7Wicomico County9.5+0.2 pts
8Baltimore city9.3+0.5 pts
9Charles County8.5+0.1 pts
10Talbot County8-0.5 pts
11Washington County6.6+0.2 pts
12Caroline County6.1-0.7 pts
13Harford County6+0.1 pts
14Carroll County5.5+0.4 pts
15Somerset County5.1+1.3 pts
16Queen Anne's County5.1-0 pts
17Worcester County4.7-0.4 pts
18Dorchester County4.5+0.5 pts
19St. Mary's County4.3-0.2 pts
20Calvert County4+0.3 pts
21Cecil County3.9+0.3 pts
22Kent County3.7-0.8 pts
23Allegany County2.1-0 pts
24Garrett County1.4-0 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/2024/table-based-SF/data/5YRData/acsdt5y2024-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 33.6% in 2024, according to the U.S. Census Bureau.

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

Garrett County, with 1.4% in 2024.

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