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What are the fastest-growing counties in Maryland?

Frederick County (+11.0%), Queen Anne's County (+8.8%) and Charles County (+5.9%) grew fastest in Maryland between 2020 and 2025.

Maryland as a whole grew 1.4% between 2020 and 2025, to 6,265,347 residents.

Data as of 2025 · updated

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All 24 Maryland counties ranked

Maryland counties by population growth
RankCountyResidents 2025Change 2020–25Net migration per 1,000, 2025New homes per 1,000, 2025
1Frederick County302,883+11.0%7.33.9
2Queen Anne's County54,448+8.8%11.45.2
3Charles County176,593+5.9%9.35.3
4Worcester County54,459+3.7%6.94.4
5Dorchester County33,628+3.4%14.71.9
6Cecil County107,131+3.2%3.71.3
7Wicomico County106,899+3.2%−1.61.6
8Caroline County34,116+2.5%0.12.2
9St. Mary's County116,692+2.4%0.32.4
10Kent County19,565+2.3%7.72.7
11Carroll County176,677+2.2%−0.60.9
12Talbot County38,238+2.0%1.25.2
13Harford County266,446+2.0%1.82.7
14Washington County157,731+2.0%3.72.2
15Howard County339,183+1.9%−1.52.1
16Somerset County24,973+1.7%10.51.4
17Calvert County94,484+1.7%−1.31.7
18Anne Arundel County603,380+1.7%−0.33.1
19Montgomery County1,074,582+1.3%−9.21.3
20Prince George's County970,374+0.5%−3.42.2
21Baltimore County847,650−0.7%−4.01.8
22Garrett County28,370−1.5%3.85.2
23Allegany County66,848−1.6%3.20.5
24Baltimore (city)569,997−2.3%−3.61.0

Ranked by the change in Census Bureau population estimates, 2020–2025.

Statewide totals

More county rankings for Maryland

Metro areas

Fastest-growing metro areas in Maryland · Fastest-growing metro areas in the U.S. · Largest metro areas in Maryland

Every U.S. metro and micro area

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Questions

Is Maryland growing?

Maryland as a whole grew 1.4% between 2020 and 2025, to 6,265,347 residents. Statewide figures add up its counties.

What is the fastest-growing county in Maryland?

Frederick County, which grew 11.0% between 2020 and 2025 to 302,883 residents (Census Bureau population estimates). Queen Anne's County (+8.8%) and Charles County (+5.9%) came next.

Which Maryland counties are losing population?

4 of the 24 ranked counties had fewer residents in 2025 than in 2020. The steepest declines: Baltimore (city) (−2.3%), Allegany County (−1.6%), Garrett County (−1.5%).

Where are people moving in Maryland?

For their size, Dorchester County (14.7 per 1,000 residents), Queen Anne's County (11.4 per 1,000 residents) and Somerset County (10.5 per 1,000 residents) drew the most net domestic migration (people moving in from other U.S. counties minus people moving out) in 2025.

Fastest-growing counties in other states

Across the U.S.

Sources and method

Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.