Demographics of Frederick County, Maryland

Frederick County, Maryland had 302,883 people on July 1, 2025, by the Census Bureau’s estimate: +30,116 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Frederick County, in four figures

302,883
Population: July 1, 2025, Vintage 2025 estimate.; +11.0%
Change since July 2020: +30,116 people.; 39.0 ±0.2
Median age: ACS 2020–⁠2024.; $122,002 ±$2,489
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Frederick County, Maryland's population grew 11.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Frederick County, Maryland's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Frederick County, Maryland's population grew 11.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Frederick County, Maryland's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	272,767	100.0	100.0
2021	280,520	102.8	100.2
2022	287,899	105.5	100.7
2023	293,742	107.7	101.6
2024	298,855	109.6	102.5
2025	302,883	111.0	103.1

3 more columns on a wider screen

Population of Frederick County, Maryland on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	272,767	+1,057	+120	+5	+903
2021	280,520	+7,753	+949	+315	+6,661
2022	287,899	+7,379	+861	+1,482	+4,965
2023	293,742	+5,843	+1,113	+1,256	+3,486
2024	298,855	+5,113	+1,124	+1,522	+2,473
2025	302,883	+4,028	+1,107	+698	+2,212

Age, 2020–2024

The median age is 39.0 ±0.2: for men 38.5 ±0.2 and for women 39.6 ±0.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in Frederick County by age, ACS 2020–2024
Age	People	Share	Maryland	United States
Under 5	16,892 ±41	5.9% ±<0.1	5.7% ±<0.1	5.6% ±<0.1
5 to 17	50,104 ±1,175	17.5% ±0.4	16.4% ±0.1	16.3% ±<0.1
18 to 24	23,562 ±795	8.2% ±0.3	8.5% ±0.1	9.1% ±<0.1
25 to 44	77,660 ±1,226	27.1% ±0.4	26.8% ±0.1	26.9% ±<0.1
45 to 64	74,948 ±1,146	26.1% ±0.4	25.9% ±0.1	24.8% ±<0.1
65 and over	43,882 ±1,187	15.3% ±0.4	16.7% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $122,002 ±$2,489, and income per person $54,982 ±$744, in 2024 dollars. The median is $103,678 ±$597 in Maryland and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Frederick County by income, ACS 2020–2024
Household income	Households	Share	Maryland	United States
Under $25,000	7,620 ±743	7.3% ±0.7	11.2% ±0.2	14.6% ±<0.1
$25,000 to $49,999	9,281 ±717	8.9% ±0.7	12.4% ±0.2	16.7% ±<0.1
$50,000 to $74,999	11,943 ±932	11.4% ±0.9	12.8% ±0.2	15.5% ±<0.1
$75,000 to $99,999	12,669 ±867	12.1% ±0.8	11.9% ±0.2	12.6% ±<0.1
$100,000 to $149,999	21,206 ±1,075	20.3% ±1.0	18.9% ±0.2	17.5% ±<0.1
$150,000 to $199,999	16,202 ±800	15.5% ±0.8	12.5% ±0.2	9.6% ±<0.1
$200,000 or more	25,714 ±915	24.6% ±0.9	20.3% ±0.2	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

2 more columns on a wider screen

Poverty rate in Frederick County by age, ACS 2020–2024
Age	Below poverty	Rate	Maryland	United States
All ages	16,959 ±1,786	6.0% ±0.6	9.4% ±0.2	12.5% ±0.1
Under 18	4,498 ±780	6.8% ±1.2	11.5% ±0.3	16.1% ±0.1
18 to 59	8,586 ±935	5.5% ±0.6	8.7% ±0.2	11.6% ±0.1
60 and over	3,875 ±463	6.3% ±0.7	9.3% ±0.2	11.0% ±<0.1

Housing, 2020–2024

1 more column on a wider screen

Housing in Frederick County, ACS 2020–2024
Measure	Frederick County	Maryland	United States
Housing units	108,924 ±86	2,560,784 ±424	143,775,355 ±10,234
Occupied	96.1% ±0.5	92.3% ±0.1	89.9% ±0.1
Vacant	3.9% ±0.5	7.7% ±0.2	10.1% ±0.1
Owner occupied	77.0% ±0.8	67.6% ±0.3	65.2% ±0.3
Renter occupied	23.0% ±0.9	32.4% ±0.3	34.8% ±0.1
Median home value	$464,600 ±$4,368	$419,900 ±$1,385	$332,700 ±$236
Median gross rent	$1,774 ±$37	$1,705 ±$8	$1,413 ±$2
Median year built	1991 ±1	1979 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

2 more columns on a wider screen

People in Frederick County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Maryland	United States
Hispanic or Latino	36,962 ±0	12.9% ±<0.1	12.5% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	188,615 ±519	65.7% ±0.2	46.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	28,907 ±1,016	10.1% ±0.4	28.9% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	16,825 ±474	5.9% ±0.2	6.5% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	254 ±105	0.1% ±<0.1	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	98 ±40	< 0.1% ±<0.1	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	909 ±321	0.3% ±0.1	0.7% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	14,478 ±1,137	5.0% ±0.4	4.6% ±0.1	4.3% ±<0.1

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

2 more columns on a wider screen

People in Frederick County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Maryland	United States
Born in the state	139,234 ±2,538	48.5% ±0.9	46.8% ±0.2	57.3% ±<0.1
Born in another state	103,843 ±2,178	36.2% ±0.8	34.8% ±0.2	26.9% ±<0.1
Born a citizen outside the states	4,494 ±524	1.6% ±0.2	1.8% ±0.1	1.7% ±<0.1
Born abroad	39,477 ±1,374	13.8% ±0.5	16.6% ±0.2	14.1% ±<0.1
Naturalized citizens	23,501 ±1,062	8.2% ±0.4	9.1% ±0.1	7.4% ±<0.1
Not citizens	15,976 ±1,255	5.6% ±0.4	7.5% ±0.1	6.8% ±<0.1

Frederick County among the counties of Maryland

7th of 24 by population, July 2025. Every one is listed on the Maryland page.

Counties of Maryland near Frederick County in population, July 2025
County	July 2025	Change since 2020
Prince George's County	970,374	+0.5%
Baltimore County	847,650	−0.7%
Anne Arundel County	603,380	+1.7%
Baltimore city	569,997	−2.3%
Howard County	339,183	+1.9%
Frederick County	302,883	+11.0%
Harford County	266,446	+2.0%
Carroll County	176,677	+2.2%
Charles County	176,593	+5.9%
Washington County	157,731	+2.0%
St. Mary's County	116,692	+2.4%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026