Williams County Population

1900–2026

42,779

2026 projection

3.9% since 2020 (increase)

010K20K30K40K50K1900192019401960198020002020

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 Williams County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202642,779+1,0122.42%
202541,767+1,0122.48%
202440,755+1,5223.88%
202339,233+1,2793.37%
202237,954-5541.44%
202138,508-2,6826.51%
202041,190+3,2938.69%
201937,897+2,1996.16%
201835,698+2,0596.12%
201733,639-6471.89%

Showing 10 of 27 years.

Williams County Demographics

31.8median age

Median age

Female31.8 yrs
Male31.9 yrs

Adults

27,621
3,934 seniors (65+) · 14% of adults23,687 other adults

Sex

Female 47.1% · 18,647Male 52.9% · 20,908

Population by age

MaleFemale85+ years, male: 13085+ years, female: 29080–84 years, male: 24780–84 years, female: 27075–79 years, male: 22475–79 years, female: 30070–74 years, male: 42170–74 years, female: 29765–69 years, male: 83565–69 years, female: 92060–64 years, male: 1,11260–64 years, female: 75355–59 years, male: 70955–59 years, female: 85950–54 years, male: 1,09250–54 years, female: 75845–49 years, male: 1,05945–49 years, female: 79440–44 years, male: 1,58140–44 years, female: 1,24635–39 years, male: 1,88335–39 years, female: 2,09830–34 years, male: 1,81830–34 years, female: 1,77525–29 years, male: 1,72325–29 years, female: 1,34720–24 years, male: 1,30120–24 years, female: 1,02415–19 years, male: 1,21015–19 years, female: 1,09210–14 years, male: 1,52110–14 years, female: 1,8025–9 years, male: 2,2635–9 years, female: 1,4570–4 years, male: 1,7790–4 years, female: 1,56585+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

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 396 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

Williams County Income

$85,595median household income

Median household income

$85,595

Half of households earn more, half earn less

Median earnings

$57,824

Typical yearly pay for a worker 25 or older.

Poverty rate

8.6%

About 1 in 12 residents

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

Williams County Marital Status

55% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married55%51%59%
Never married29%33%25%
Divorced12%13%11%
Widowed3%2%5%
Separated1%1%1%

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

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year