Washington County Population

1790–2026

19,224

2026 projection

3.6% since 2020 (decrease)

05K10K15K20K25K30K18001850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Washington County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202619,224-2291.18%
202519,453-2291.16%
202419,682-1490.75%
202319,831+590.30%
202219,772+160.08%
202119,756-1930.97%
202019,949-4031.98%
201920,352-660.32%
201820,418+1050.52%
201720,313-360.18%

Showing 10 of 38 years.

Washington County Demographics

40.3median age

Median age

Female42.6 yrs
Male38.6 yrs

Adults

15,604
3,627 seniors (65+) · 23% of adults11,977 other adults

Sex

Female 48.6% · 9,641Male 51.4% · 10,208

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 198 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Washington County Income

$46,023median household income

Median household income

$46,023

Half of households earn more, half earn less

Median earnings

$36,935

Typical yearly pay for a worker 25 or older.

Poverty rate

17.2%

About 1 in 6 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Washington County Marital Status

38% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married38%39%38%
Never married40%44%35%
Divorced11%12%10%
Widowed8%3%14%
Separated3%3%3%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201