Central New York
Williamstown, New York
Williamstown is a town in Oswego County, in New York's Central New York region, home to about 1,300 people as of the 2020 census.
Whether you're moving in or you've been here for years, the checks that matter most are the school district, the assessment and STAR, and — outside the cities — the well, the septic, and the flood map.
- Type
- Town
- County
- Oswego
- Region
- Central New York
- Population (2020)
- 1,335
Local Almanac
Notes in and around Williamstown
Short, sourced notes tied to this place, its county, or nearby communities.
Nearby · History & Culture
Parish Carries David Parish in the Name
Parish's name story and historian listing give the Oswego County town a clear local-memory handle.
Read this note ->Nearby · History & Culture
Camden keeps the Queen Village story close to Main Street
Camden’s town history and Carriage House Museum keep the Queen Village story close to the village center.
Read this note ->Nearby · History & Culture
Altmar Gives Albion a Salmon River Center
Albion's hamlet of Altmar gives the town a Salmon River anchor, with municipal offices nearby and DEC's fish hatchery just up the road.
Read this note ->Oswego County · Rules & Licenses
Scriba Nuclear Planning Is a Household Reference, Not a Panic Button
Scriba residents near Nine Mile Point should know the official county and state preparedness pages before a siren test or emergency notice raises questions.
Read this note ->Oswego County · History & Culture
Oswego Town Has Mary Walker's Bunker Hill Story
Oswego Town's civic memory includes Dr. Mary Edwards Walker, whose Bunker Hill Road roots tie the town to medicine, war service, and suffrage.
Read this note ->Oswego County · History & Culture
Constantia Is a North-Shore Oneida Lake Town
Constantia's official history frames the town through Oneida Lake, forests, water travel, and the corridor between Oneida Lake and Lake Ontario.
Read this note ->Oswego County · Home & Property
Oswego County Parcel Checks Start With Image Mate
Oswego County's Image Mate route helps buyers and owners start with official assessment records, tax maps, and property images.
Read this note ->Oswego County · History & Culture
Granby Is River Power and Lake Neatahwanta
Granby's identity comes from Oswego River waterpower, early settlement, railroad-era industry, and Lake Neatahwanta's complicated warmwater lake story.
Read this note ->Oswego County · Money & Taxes
Oswego County Tax Records Are Online, But Local Collectors Still Matter
Oswego County points users to online tax records while warning that local collectors handle standard-period tax questions.
Read this note ->Property tax snapshot
Roughly $22–$23 per $1,000
Combined full-value rate — county + town/city + school district, per $1,000 of market value (FY2025). On a $300,000 home that's about $6,725–$6,902 a year before the STAR break.
A planning estimate, not a bill. Your exact rate depends on your school district and any village. Confirm with the assessor.
Statewide links
Statewide starting points.
Good to know
- • Your assessed value usually isn't your market value — ask for the equalization rate.
- • Register for STAR; new applicants generally receive a credit instead of an automatic exemption on the bill.
- • Outside the cities, check the well, the septic, and the FEMA flood map before you buy.
Nearby
Nearby places
Tax rates: NYS Dept of Taxation & Finance (ORPTS), Real Property Tax Rates and Levy Data by Municipality, data.ny.gov dataset iq85-sdzs. (FY2025). Population: U.S. Census 2020. Reviewed June 2026. Source data ->
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