What is the largest city in Washington County, MD?

Hagerstown is the largest city or town in Washington County, with about 43,665 residents.

How many ZIP codes are in Washington County?

Washington County includes 19 ZIP Code Tabulation Areas, including 21711, 21713, 21715, 21719, 21722.

What is the population of Washington County, MD?

About 155,709 people live in Washington County, based on American Community Survey 5-year estimates.

What counties border Washington County?

Washington County borders Loudoun County, VA, Frederick County, Franklin County, PA, Berkeley County, WV, Allegany County, Jefferson County, WV, Morgan County, WV, Fulton County, PA.

Washington County, MD: Cities, ZIP Codes & Local Data

Population

155,709

Land area

458sq mi

People per sq mi

340

ZIP codes

19

Washington County at a glance

Washington County is 47% less dense than Maryland as a whole.
Households here earn a median of $77,747 a year, 25% less than the Maryland figure of $103,678.
A typical owner-occupied home is valued at $296,100 (29% below Maryland) and median rent is $1,147 a month.
The biggest population centers are Hagerstown (43,665), Halfway (10,849) and Robinwood (8,042).

Local data for Washington County, MD

Counts from official public data

Housing and community stats

Washington County, MD, American Community Survey 2020-2024

Full profile

Median household income

$77,747

Poverty rate

12.4%

Median home value

$296,100

Prices +3.3% in a year

Median rent

$1,147/mo

Homeownership

66.8%

Bachelor's or higher

24.1%

Median age

40.7

Average commute

28.8 min

Largest reported origins and ancestries: German Americans (33,977), Irish Americans (17,512), Italian Americans (6,044).

Home values and rents Income, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

3.6%

Sep 2026, -1.1 pts in a year

Average annual pay

$59,257

66,110 jobs, 2025

Income per person

$59,536

BEA, 2024

Federal spending

$1.2B

FY 2026, $7,506 per person

PPP loans

$283M

3,316 loans, 33,761 jobs reported

Campaign donations

$404K

Itemized, 2026 cycle

Economy Federal spending PPP loans

How people get to work

Washington County, MD, workers 16 and older. American Community Survey 5-year estimates

Drove alone74.3%
Carpooled9.1%
Public transit1.1%
Walked1.5%
Bicycle0.2%
Taxi, ride-hailing, motorcycle or other1.3%
Worked from home12.4%

Average one-way commute: 28.8 minutes for people who do not work from home.

Environment and hazard risk

Washington County, MD, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Low

Top: drought

Storm events since 1996

1,066

Most often thunderstorm wind

Flood insurance policies

280

0.5% of homes, county

July high / Jan low

86° / 22°F

43.5 inches of rain a year

Hazards, floods and storm history Check a flood zone 51 historic places

Health statistics

Share of adults in Washington County, MD, CDC PLACES estimates

All 40 measures

Obesity

39.0%

U.S. 33.3% +5.7 pts

Diabetes

13.3%

U.S. 12.1% +1.2 pts

Smoking

15.1%

U.S. 12.8% +2.3 pts

Uninsured (18-64)

9.4%

U.S. 11.1% -1.7 pts

Cities, towns and ZIP codes in Washington County

Population shown

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Frequently asked questions

What is the largest city in Washington County, MD?: Hagerstown is the largest city or town in Washington County, with about 43,665 residents.
How many ZIP codes are in Washington County?: Washington County includes 19 ZIP Code Tabulation Areas, including 21711, 21713, 21715, 21719, 21722.
What is the population of Washington County, MD?: About 155,709 people live in Washington County, based on American Community Survey 5-year estimates.
What counties border Washington County?: Washington County borders Loudoun County, VA, Frederick County, Franklin County, PA, Berkeley County, WV, Allegany County, Jefferson County, WV, Morgan County, WV, Fulton County, PA.