County · code 36009
Cattaraugus CountyNew York
Cattaraugus County is in New York and has its county seat in Little Valley. The county was created on March 11, 1808, from parts of Allegany, Genesee, and Niagara counties.
- Founded1808
- County seatLittle Valley
- Land area1,308 sq mi + 14 sq mi water
- Population77,042 2020 Census
- Parcels mapped49,408 checked 15 October 2026
Where it is
Cattaraugus 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 1808 from Allegany County, Genesee County and Niagara County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Cattaraugus County was created from Allegany and Genesee counties on March 11, 1808, but was not fully organized and was attached to Niagara for administrative and judicial purposes. The eastern half was later attached to Allegany in 1814, and the county became fully organized and independent in 1817.
- 1808Cattaraugus County created Cattaraugus created from Allegany and Genesee; Cattaraugus not fully organized, attached to Niagara for administrative and judicial purposes. · N.Y. Laws 1808, 31st sess., ch. 40, secs. 1-2/p. 266
- 1812Changed Legislature authorized Cattaraugus to be attached to Allegany, but attachment did not take effect. · N.Y. Laws 1812, 35th sess., ch. 173/p. 517
- 1814
- 1817
Land and parcels
What the maps cover in Cattaraugus
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 49,408 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 20 November 2025 · checked 15 October 2026 -
Address points Official
One point per address, 45,149 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
Cattaraugus 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
Cattaraugus 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 Cattaraugus County.
See your own lot on these maps
Open Cattaraugus 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 Cattaraugus County
- When was Cattaraugus County founded?
- Cattaraugus County was founded in 1808, formed from Allegany County, Genesee County and Niagara County.
- What is the county seat of Cattaraugus County?
- The county seat of Cattaraugus County is Little Valley.
- Is there an online parcel map for Cattaraugus County?
- Yes. A public source publishes a parcel map of 49,408 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Cattaraugus County's boundary or name changed?
- Cattaraugus County was created in 1808 from Allegany County, Genesee County and Niagara County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Allegany County and Niagara County.
- Is my lot in a flood zone?
- We do not have flood maps for Cattaraugus County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby