Baltimore County, Maryland Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 3rd-largest in Maryland

The population of Baltimore County, Maryland is 849,586 as of the 2023 American Community Survey, making it the 3rd-largest county in Maryland. The median household income is $90,904, the median home value is $330,000, and the median age is 39.5.

The population of Baltimore County has grown 5.7% since 2010 (806,654 → 852,425), a +0.39% annualized rate.

Baltimore County within Maryland · Source: US Census TIGER/Line via us-atlas

849,586

Population

+0.39%

Annual growth

1420

People / sq mi

$90,904

Median Income

$330,000

Median Home Value

Baltimore County covers 598 sq mi of land at 1419.9 people per square mile.

About Baltimore County, MD

Baltimore County is a county in Maryland with a population of 849,586. It ranks #3 among counties in Maryland by population. The median age is 39.5, in line with the national median. The population is 47.6% male and 52.4% female.

The median household income in Baltimore County is $90,904, above the US median of $74,580. 6.9% of residents live below the federal poverty level. Home values sit at a median of $330,000, with monthly rent averaging $1,566. The homeownership rate of 66.3% is close to the national rate of 64.8%.

Educational attainment in Baltimore County reflects 41.4% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 14.2% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 28.3 minutes each way.

Baltimore County Population History (2010-2024)

The county of Baltimore County had a population of 806,654 in 2010 and 852,425 in 2024, a 5.7% growth over 14 years. The peak was 853,338 in 2020. Average annual growth rate: 0.40%.

852,425

Population (2024)

806,654

Population (2010)

853,338

Peak (2020)

0.40%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	806,654	-	-	estimate
2011	813,021	+6,367	+0.79%	estimate
2012	818,218	+5,197	+0.64%	estimate
2013	822,426	+4,208	+0.51%	estimate
2014	825,201	+2,775	+0.34%	estimate
2015	827,796	+2,595	+0.31%	estimate
2016	828,941	+1,145	+0.14%	estimate
2017	828,956	+15	+0.00%	estimate
2018	828,547	-409	-0.05%	estimate
2019	828,503	-44	-0.01%	estimate
2020	853,338	+24,835	+3.00%	estimate
2021	850,670	-2,668	-0.31%	estimate
2022	848,873	-1,797	-0.21%	estimate
2023	848,676	-197	-0.02%	estimate
2024	852,425	+3,749	+0.44%	estimate

Race & Ethnicity

White	54.1%
Black or African American	30.3%
Asian	0.0%
Hispanic or Latino (any race)	1.2%
Two or More Races	0.0%

Age & Sex

39.5

Median Age

52.4%

Female

47.6%

Male

17.7%

Age 65+

Age Distribution

Under 5

5.8%

5–9

6.2%

10–14

6.1%

15–19

6.6%

20–24

6.1%

25–34

13.1%

35–44

12.9%

45–54

12.1%

55–59

6.5%

60–64

6.9%

65–74

10.3%

75–84

5.1%

85+

2.3%

Children (under 15): 18.1% · Seniors (65+): 17.7%

Income & Poverty

Median household income	$90,904$-10,748 vs state
Mean household income	$121,241
Per-capita income	$48,196
Poverty rate	6.9%+0.6% vs state
Unemployment rate	3.3%
Employment-to-population	62.5%

Top Industries by Employment

Professional & business services

27.1%

Finance & real estate

13.3%

Public administration

8.0%

Education & health care

7.5%

Information

7.2%

Retail trade

6.1%

Construction

5.9%

Manufacturing

5.7%

The largest employment sector in Baltimore County is professional & business services, accounting for 27.1% of workers.

How residents commute

3.0%

Drive alone

1.9%

Carpool

71.4%

Public transit

14.2%

Work from home

28.3 min

Avg commute

Housing

$330,000$-67,700 vs state

Median home value

$1,566

Median rent

66.3%

Homeownership rate

350,296

Total housing units

94.2%

Occupied

5.8%

Vacant

33.7%

Renter-occupied

Social & access

94.5%

With health insurance

95.3%

With broadband internet

21.3%

Foreign-born

6.0%

Veterans (18+)

11.8%

With a disability

84.4%

Speak language other than English at home

Education

91.7%

High School+

41.4%

Bachelor's+

Largest cities in Maryland

Baltimore (577,193)Columbia (105,871)Germantown (90,521)Waldorf (82,541)Silver Spring (82,129)Frederick (80,617)Ellicott City (73,737)Glen Burnie (72,772)Gaithersburg (69,225)Bethesda (67,403)All Maryland cities →

Other counties in Maryland

Montgomery County (1,057,586)Prince George's County (955,584)Anne Arundel County (590,936)Baltimore city (577,193)Howard County (333,916)Frederick County (280,341)Harford County (262,509)Carroll County (174,318)Charles County (168,710)Washington County (155,033)All Maryland counties →

Part of Maryland

Maryland demographic profile All Maryland data →

Metro areas in Maryland

Washington (6,263,796)Philadelphia (6,241,882)Baltimore (2,839,409)Hagerstown (298,525)Lexington Park (208,163)Salisbury (128,802)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Common questions about Baltimore County, MD

What is the population of Baltimore County, MD?What is the median household income in Baltimore County, MD?What is the median home value in Baltimore County, MD?What are the demographics of Baltimore County, MD?What is the cost of living in Baltimore County, MD?Is Baltimore County, MD growing?

Frequently Asked Questions

Baltimore County, Maryland has a population of 849,586 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 3rd-largest county in Maryland. Population density is 1420 people per square mile.

The population of Baltimore County has grown 5.7% since 2010 (806,654 → 852,425), a +0.39% annualized rate.

The median household income in Baltimore County, Maryland is $90,904, with mean (average) household income of $121,241 and per-capita income of $48,196. 6.9% of residents live below the federal poverty level.

In Baltimore County, the largest racial and ethnic groups are White (54.1%), Black or African American (30.3%), Hispanic or Latino (1.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Baltimore County, Maryland is 39.5 years. Residents are 52.4% female and 47.6% male.

The median home value in Baltimore County is $330,000 and median monthly rent is $1,566. 66.3% of occupied housing units are owner-occupied. The county has 350,296 total housing units, 5.8% of which are vacant.

The largest employment sector in Baltimore County, Maryland is professional, scientific, and management services, employing 27.1% of workers. The unemployment rate is 3.3%.

Baltimore is among the largest cities associated with Baltimore County, Maryland, with a population of 577,193.