County · code 36039
Greene CountyNew York
Greene County is in New York and was formed on March 25, 1800, from parts of Albany and Ulster counties. The county seat is Catskill.
- Founded1800
- County seatCatskill
- Named forNathanael Greene
- Land area647 sq mi + 11 sq mi water
- Population47,931 2020 Census
- Parcels mapped38,849 checked 14 October 2026
Where it is
Greene 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 1800 from Albany County and Ulster County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Greene County was formed in 1800 from Albany County and Ulster County, and named after Nathanael Greene. Catskill is the county seat.
Deeds and plats from before 1800 for land now in Greene County may have been recorded in Albany County and Ulster County.
- 1800Greene County created Greene created from Albany and Ulster. · N.Y. Laws 1800, 23d sess., ch. 59/p. 503
- 1801Gained territory Greene gained from Delaware and Ulster. · N.Y. Laws 1801, 24th sess., ch. 123/p. 290
- 1812
- 1814
- 1822Gained territory Greene gained small area from Ulster. · N.Y. Laws 1822, 45th sess., ch. 243/p. 257
- 1823Gained territory Greene gained small area from Columbia. · N.Y. Laws 1823, 46th sess., ch. 251/p. 377
- 1836
Land and parcels
What the maps cover in Greene
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 38,849 parcels from Greene County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 10 July 2026 · checked 14 October 2026 -
Address points Official
One point per address, 35,246 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
Greene 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
Greene 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 Greene County.
See your own lot on these maps
Open Greene 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 Greene County
- When was Greene County founded?
- Greene County was founded in 1800, formed from Albany County and Ulster County, and named after Nathanael Greene.
- What is the county seat of Greene County?
- The county seat of Greene County is Catskill.
- Is there an online parcel map for Greene County?
- Yes. Greene County publishes a parcel map of 38,849 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Greene County's boundary or name changed?
- Greene County was created in 1800 from Albany County and Ulster County. Since then the Atlas of Historical County Boundaries records 6 later changes, chiefly involving Ulster County, Columbia County and Delaware County.
- Is my lot in a flood zone?
- We do not have flood maps for Greene County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby