Oswego County > Williamstown (town)
Population trend for Williamstown
02,0001990: 1,2791,27919902000: 1,3501,35020002010: 1,2771,27720102020: 1,3351,33520202023: 1,6481,6482023
U.S. Census Bureau ACS, IPUMS

Williamstown is a town in Oswego County, in the Central region.

2023 Median income for Oswego County communities
American Community Survey, 2023
2000
Oswego County home price index (FHFA)
1985–2024: Home prices rose about 247%.

249 160 72 1985 2024

The numbers at left represent an index, not dollar prices. The index is set to 100 in the year 2000.

Federal Reserve Bank of St. Louis (FRED)
Occupied housing units in Williamstown
American Community Survey, 2023
Household types in Williamstown
Married-couple families: 298 (78.2%) Married-couple families Male householder (no spouse): 25 (6.6%) Male householder (no spouse) Female householder (no spouse): 58 (15.2%) Female householder (no spouse) Householder living alone: 117 (74.1%) Householder living alone Householder not living alone: 41 (25.9%) Householder not living alone Family Nonfamily
ACS, 2023
Poverty rates by age group in Williamstown

Pct 5 and under 37% Pct 6 to 17 17% Pct 18 to 64 19% Pct 65 and over 11%

The overall poverty rate in Williamstown is 19 percent.
The highest rate is found among residents ages 5 and under.
Year: 2023

ACS, 2023

Where residents of Williamstown lived in the prior year

Same house: 1,420 (88.6%) Same county (different house): 52 (3.2%) Different NY county: 128 (8%) 1,603 current residents Same house: 1,420 (88.6%) Same house Different NY county: 128 (8%) Different NY county Same county (different house): 52 (3.2%) Same county (different house) Different state: 3 (0.2%) Different state (under 1%)
U.S. Census ACS, 2023
Median age of Williamstown residents
36.4 37.6 30.6 29.8 2010 2015 2020 2023


The margin of error can be high in 2023 estimates, particularly for small towns and villages.

Changes in median age can also indicate a shift in the number of school-age children; see the Education page for enrollment trends.

U.S. Census Bureau