County · code 36121
Wyoming CountyNew York
Wyoming County is a county in New York, with its seat in Warsaw. It was formed on May 19, 1841.
- Founded1841
- County seatWarsaw
- Land area593 sq mi + 3.5 sq mi water
- Population40,531 2020 Census
- Parcels mapped23,441 checked 15 October 2026
Where it is
Wyoming on the map of New York
New York has 62 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1841 from Genesee County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Wyoming County was created from Genesee County on May 19, 1841. On April 1, 1846, Wyoming County gained territory from Allegany County.
- 1841Wyoming County created Wyoming created from Genesee. · N.Y. Laws 1841, 64th sess., ch. 196, sec. 1/p. 169
- 1846Gained territory Wyoming gained from Allegany. · N.Y. Laws 1846, 69th sess., ch. 51/p. 53
Land and parcels
What the maps cover in Wyoming
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 23,441 parcels from Wyoming County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 18 September 2026 · checked 15 October 2026 -
Address points Official
One point per address, 22,112 in all from NYS Office of Information Technology Services (ITS), Geospatial Services / GIS Program Office (AGOL org 'ShareGIS NY', owner NYSGIS_GPO).
edited 25 September 2026 · checked 14 October 2026 -
Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Wyoming by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Wyoming County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Wyoming County.
See your own lot on these maps
Open Wyoming County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Wyoming County
- When was Wyoming County founded?
- Wyoming County was founded in 1841, formed from Genesee County.
- What is the county seat of Wyoming County?
- The county seat of Wyoming County is Warsaw.
- Is there an online parcel map for Wyoming County?
- Yes. Wyoming County publishes a parcel map of 23,441 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Wyoming County's boundary or name changed?
- Wyoming County was created in 1841 from Genesee County. Since then the Atlas of Historical County Boundaries records 1 later change, chiefly involving Allegany County.
- Is my lot in a flood zone?
- We do not have flood maps for Wyoming County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby