Central New York
Onondaga County, New York
Onondaga County is home to 476,516 people across 48 cities, towns, villages, and hamlets. Syracuse, Finger Lakes edges, and quiet countryside.
- Population (2020)
- 476,516
- Region
- Central New York
- Places
- 48
Property tax in Onondaga County
About $14–$34 per $1,000 of market value
Combined full-value rates (county + town/city + school) across the county, FY2025. On a $300,000 home that's roughly $4,106–$10,204 a year before STAR. The exact rate depends on the town, school district, and village. A planning estimate, not a bill.
Almanac Notes
More about Onondaga County
Short, sourced notes tied to this county, with the local color and the things worth knowing before you make a plan.
Home & Property
Skaneateles Building Projects Start With Codes, Not Guesswork
Skaneateles owners should check town or village code offices before construction, alterations, occupancy changes, or shoreline-adjacent work gets expensive.
History & Culture
Elbridge Explains Itself Through Creeks, Canal Villages, and Route 5
Elbridge has a two-village pattern shaped by Skaneateles Creek, Jordan canal commerce, Route 5, and a glacial drumlin landscape.
Money & Taxes
Onondaga Town and County Taxes Split by Calendar
Onondaga County says current town and county taxes start with local collectors before April, then move to the county after April 1.
History & Culture
Skaneateles Town Is a Lake, a Creek, and a Waterpower Drop
Skaneateles' town historian connects the long glacial lake to creek-powered mills, Syracuse water, and the town's tourism turn.
History & Culture
Baldwinsville Begins at the Seneca River Crossing
Baldwinsville's village story starts with the Seneca River, shallow rifts near Paper Mill Point, and the McHarrie family's 1794 arrival.
Home & Property
Onondaga Septic Work Starts With Health Engineering
Onondaga County routes septic, sewer, water-source, subdivision, and pool plan review through Public Health Engineering.
History & Culture
Marcellus Is Military Tract Land Cut by Nine Mile Creek Mills
Marcellus' identity joins the Military Tract naming pattern with the creek valley, mills, paper work, and Marcellus Falls waterpower.
Money & Taxes
Onondaga County Tax Payments Move After March 31
Onondaga County says current town and county taxes are paid to town collectors January through March, then go to county collection after April 1.
Rules & Licenses
Onondaga Food Events Need the Permit Clock Early
Onondaga County temporary and promotional food events have a 10-day application checkpoint that organizers should handle early.
Cities (1)
Towns (19)
Villages (15)
Hamlets (12)
Reservations (1)
Statewide starting points
County, assessor, STAR, and environment lookups
Start with the state county directory, then use ORPTS for assessor, equalization-rate, and municipal profile data. Exact local offices and deadlines still come from the county, city, town, village, or borough office.
- NY.Gov county directory
- ORPTS Municipal Data Portal — assessors & rates
- STAR property-tax break
- DECinfo Locator
Use this carefully: County pages here are orientation pages. Current forms, deadlines, local offices, and parcel-specific details come from the responsible office.
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.
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