Washington County Population

1800–2026

12,426

2026 projection

3.2% since 2020 (increase)

05K10K15K20K18001850190019502000

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.
202612,426+580.47%
202512,368+580.47%
202412,310+440.36%
202312,266+1991.65%
202212,067-140.12%
202112,081+390.32%
202012,042-560.46%
201912,098+870.72%
201812,011+1401.18%
201711,871-2241.85%

Showing 10 of 37 years.

Washington County Demographics

42.3median age

Median age

Female43.6 yrs
Male40 yrs

Adults

9,357
2,367 seniors (65+) · 25% of adults6,990 other adults

Sex

Female 50.5% · 6,125Male 49.5% · 6,015

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 121 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

$61,616median household income

Median household income

$61,616

Half of households earn more, half earn less

Median earnings

$43,417

Typical yearly pay for a worker 25 or older.

Poverty rate

12.8%

About 1 in 8 residents

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

Washington County Marital Status

50% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married50%51%50%
Never married25%30%21%
Divorced15%17%13%
Widowed8%2%14%
Separated1%<1%2%

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