Demographics of Harford County, Maryland

Harford County, Maryland had 266,446 people on July 1, 2025, by the Census Bureau’s estimate: +5,211 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.

Harford County, in four figures

266,446
Population: July 1, 2025, Vintage 2025 estimate.; +2.0%
Change since July 2020: +5,211 people.; 40.5 ±0.2
Median age: ACS 2020–⁠2024.; $112,265 ±$2,167
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.

Harford County, Maryland's population grew 2.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Harford 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

Harford County, Maryland's population grew 2.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Harford 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	261,235	100.0	100.0
2021	263,245	100.8	100.2
2022	263,749	101.0	100.7
2023	264,739	101.3	101.6
2024	265,624	101.7	102.5
2025	266,446	102.0	103.1

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Population of Harford 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	261,235	+302	−9	0	+219
2021	263,245	+2,010	−48	+48	+1,850
2022	263,749	+504	−20	+215	+500
2023	264,739	+990	+216	+292	+549
2024	265,624	+885	+197	+474	+250
2025	266,446	+822	+211	+133	+468

Age, 2020–2024

The median age is 40.5 ±0.2: for men 39.3 ±0.4 and for women 41.9 ±0.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Harford County by age, ACS 2020–2024
Age	People	Share	Maryland	United States
Under 5	14,223 ±24	5.4% ±<0.1	5.7% ±<0.1	5.6% ±<0.1
5 to 17	44,554 ±1,184	16.9% ±0.4	16.4% ±0.1	16.3% ±<0.1
18 to 24	19,929 ±866	7.6% ±0.3	8.5% ±0.1	9.1% ±<0.1
25 to 44	67,898 ±958	25.7% ±0.4	26.8% ±0.1	26.9% ±<0.1
45 to 64	71,137 ±1,321	27.0% ±0.5	25.9% ±0.1	24.8% ±<0.1
65 and over	46,016 ±1,338	17.4% ±0.5	16.7% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $112,265 ±$2,167, and income per person $51,717 ±$992, in 2024 dollars. The median is $103,678 ±$597 in Maryland and $80,734 ±$166 in the United States.

Households by income

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Households in Harford County by income, ACS 2020–2024
Household income	Households	Share	Maryland	United States
Under $25,000	9,362 ±876	9.2% ±0.9	11.2% ±0.2	14.6% ±<0.1
$25,000 to $49,999	12,058 ±932	11.8% ±0.9	12.4% ±0.2	16.7% ±<0.1
$50,000 to $74,999	11,918 ±809	11.7% ±0.8	12.8% ±0.2	15.5% ±<0.1
$75,000 to $99,999	11,140 ±843	10.9% ±0.8	11.9% ±0.2	12.6% ±<0.1
$100,000 to $149,999	22,469 ±1,228	22.1% ±1.2	18.9% ±0.2	17.5% ±<0.1
$150,000 to $199,999	14,942 ±806	14.7% ±0.8	12.5% ±0.2	9.6% ±<0.1
$200,000 or more	19,906 ±923	19.6% ±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).

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Poverty rate in Harford County by age, ACS 2020–2024
Age	Below poverty	Rate	Maryland	United States
All ages	18,689 ±1,952	7.1% ±0.7	9.4% ±0.2	12.5% ±0.1
Under 18	4,482 ±748	7.7% ±1.3	11.5% ±0.3	16.1% ±0.1
18 to 59	8,559 ±1,046	6.1% ±0.7	8.7% ±0.2	11.6% ±0.1
60 and over	5,648 ±609	8.8% ±0.9	9.3% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Harford County, ACS 2020–2024
Measure	Harford County	Maryland	United States
Housing units	105,468 ±142	2,560,784 ±424	143,775,355 ±10,234
Occupied	96.5% ±0.5	92.3% ±0.1	89.9% ±0.1
Vacant	3.5% ±0.5	7.7% ±0.2	10.1% ±0.1
Owner occupied	79.7% ±1.1	67.6% ±0.3	65.2% ±0.3
Renter occupied	20.3% ±1.1	32.4% ±0.3	34.8% ±0.1
Median home value	$386,400 ±$5,089	$419,900 ±$1,385	$332,700 ±$236
Median gross rent	$1,586 ±$40	$1,705 ±$8	$1,413 ±$2
Median year built	1986 ±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

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People in Harford County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Maryland	United States
Hispanic or Latino	15,290 ±0	5.8% ±<0.1	12.5% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	188,826 ±559	71.6% ±0.2	46.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	37,254 ±1,220	14.1% ±0.5	28.9% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	7,897 ±480	3.0% ±0.2	6.5% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	185 ±91	0.1% ±<0.1	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	138 ±54	0.1% ±<0.1	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	1,736 ±497	0.7% ±0.2	0.7% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	12,431 ±1,435	4.7% ±0.5	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).

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People in Harford County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Maryland	United States
Born in the state	172,580 ±2,417	65.4% ±0.9	46.8% ±0.2	57.3% ±<0.1
Born in another state	70,178 ±2,463	26.6% ±0.9	34.8% ±0.2	26.9% ±<0.1
Born a citizen outside the states	5,307 ±683	2.0% ±0.3	1.8% ±0.1	1.7% ±<0.1
Born abroad	15,692 ±1,348	5.9% ±0.5	16.6% ±0.2	14.1% ±<0.1
Naturalized citizens	10,498 ±920	4.0% ±0.3	9.1% ±0.1	7.4% ±<0.1
Not citizens	5,194 ±785	2.0% ±0.3	7.5% ±0.1	6.8% ±<0.1

Harford County among the counties of Maryland

8th of 24 by population, July 2025. Every one is listed on the Maryland page.

Counties of Maryland near Harford County in population, July 2025
County	July 2025	Change since 2020
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%
Cecil County	107,131	+3.2%

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