Central New York
Altmar, New York
Altmar is a hamlet — a community without a village government of its own — in Oswego County, part of New York's Central New York region, with about 357 residents at the 2020 census.
Like the rest of upstate New York, an assessed value here usually isn't the market value; the state's equalization rate reconciles the two. The local rate is below, and the STAR program can lower the school-tax part of the bill.
- Type
- Hamlet (CDP)
- County
- Oswego
- Region
- Central New York
- Population (2020)
- 357
Local Almanac
Notes in and around Altmar
Short, sourced notes tied to this place, its county, or nearby communities.
Nearby · History & Culture
Sandy Creek Is a Snow, Fair, and Sandy Pond Place
Sandy Creek's village page ties local identity to Little Sandy Creek, nearby ponds, lake-effect snow, winter sports, and the county fair.
Read this note ->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
Richland Is Lake Ontario Shore and Salmon River Corridor
Richland's public sources frame the town through Lake Ontario's eastern shore, the Salmon River corridor, 1801 settlement, and Pulaski's river-power history.
Read this note ->Nearby · History & Culture
Richland Feels Like Salmon River Country
Richland's story comes from Lake Ontario's eastern shore, Pulaski, early settlement, and the Salmon River corridor.
Read this note ->Nearby · Money & Taxes
Sandy Creek Tax Questions Need the Municipality and School District Sorted early
Oswego County's tax-record page warns that municipalities and school districts differ, so Sandy Creek owners should identify the bill type early.
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 ->Property tax snapshot
About $20–$41 per $1,000 in Oswego County
Combined full-value rate — county + town/city + school district, per $1,000 of market value (FY2025). On a $300,000 home that's about $5,939–$12,230 a year before the STAR break. A hamlet has no government of its own — it's taxed at the rates of the town it sits in.
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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