Williamstown Population

2011–2026

1,728

2026 projection

37.9% since 2020 (increase)

05001K1.5K2K20122014201620182020202220242026

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 Williamstown. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20261,728+352.07%
20251,693+712.17%
20231,622+1147.56%
20221,508+40.27%
20211,504+25120.03%
20201,253+23623.21%
20191,017+202.01%
2018997-19816.57%
20171,195+100.84%
20161,185+242.07%

Showing 10 of 15 years.

Williamstown Demographics

34.6median age

Median age

Female37.3 yrs
Male30.6 yrs

Adults

1,217
226 seniors · 19%991 other adults

Sex

Female 45.4% · 753Male 54.6% · 907

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 17 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

Williamstown Income

$79,358median household income

Median household income

$79,358

Half of households earn more, half earn less

Median earnings

$43,726

Typical yearly pay for a worker 25 or older.

Poverty rate

13.8%

About 1 in 7 residents

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

Williamstown Marital Status

45% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married45%43%46%
Never married35%37%34%
Divorced15%14%16%
Widowed5%5%4%
Separated0%0%0%

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