County · code 36017
Chenango CountyNew York
Chenango County is in New York and was created in 1798 from parts of Herkimer and Tioga Counties, with Norwich as its seat.
- Founded1798
- County seatNorwich
- Land area894 sq mi + 5 sq mi water
- Population47,220 2020 Census
Where it is
Chenango 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 1798 from Herkimer County and Tioga County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Chenango County was formed on March 15, 1798, from Herkimer and Tioga Counties. The county lost territory to Oneida County in 1804 and to the creation of Madison County in 1806.
- 1798Chenango County created Chenango created from Herkimer and Tioga. · N.Y. Laws 1798, 21st sess., ch. 31/p. 170
- 1804
- 1806Lost territory Chenango lost to creation of Madison. · N.Y. Laws 1806, 29th sess., ch. 70, sec. 1/p. 398
Land and parcels
What the maps cover in Chenango
Who publishes each layer, how good it is, and when we last checked.
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Parcels Missing
No public parcel map found for Chenango County yet. Lot lines and owners of record are kept by the county (co.chenango.ny.us).
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Address points Official
One point per address, 29,690 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
Chenango 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
Chenango 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 Chenango County.
See your own lot on these maps
Open Chenango 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 Chenango County
- When was Chenango County founded?
- Chenango County was founded in 1798, formed from Herkimer County and Tioga County.
- What is the county seat of Chenango County?
- The county seat of Chenango County is Norwich.
- Is there an online parcel map for Chenango County?
- Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.
- Has Chenango County's boundary or name changed?
- Chenango County was created in 1798 from Herkimer County and Tioga County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Madison County and Oneida County.
- Is my lot in a flood zone?
- We do not have flood maps for Chenango County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby