County · code 36053
Madison CountyNew York
Madison County is a county in New York, with its seat in Wampsville. It was created on March 21, 1806, and named after James Madison.
- Founded1806
- County seatWampsville
- Named forJames Madison
- Land area655 sq mi + 6.4 sq mi water
- Population68,016 2020 Census
Where it is
Madison 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 1806 from Chenango County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Madison County was created from Chenango County. On May 20, 1836, it gained territory from Oneida County.
- 1806Madison County created Madison created from Chenango. · N.Y. Laws 1806, 29th sess., ch. 70, sec. 1/p. 398
- 1836Gained territory Madison gained from Oneida. · N.Y. Laws 1836, 59th sess., ch. 393/p. 588
- 1879Boundary clarified Boundary between Madison and Oneida was redefined (no change).with Oneidano change· N.Y. Laws 1879, 102d sess., ch. 91/p. 137
Land and parcels
What the maps cover in Madison
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 Madison County yet. Lot lines and owners of record are kept by the county (madisoncounty.ny.gov).
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Address points Official
One point per address, 37,299 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
Madison 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
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
Inside a city or town, permits usually come from that city rather than the county.
Records
Permits
Zoning and code
GIS and maps
County government
- County government
The official website of Madison County.
See your own lot on these maps
Open Madison 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 Madison County
- When was Madison County founded?
- Madison County was founded in 1806, formed from Chenango County, and named after James Madison.
- What is the county seat of Madison County?
- The county seat of Madison County is Wampsville.
- Is there an online parcel map for Madison 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 Madison County's boundary or name changed?
- Madison County was created in 1806 from Chenango County. Since then the Atlas of Historical County Boundaries records 1 later change, chiefly involving Oneida County.
- Who issues building permits in Madison County?
- The county's page on building permits: Pistol Permits. Inside a city or town, ask that city first.
- Who issues septic and well permits in Madison County?
- The county's page on septic systems and wells: Public Health.
- Is my lot in a flood zone?
- We do not have flood maps for Madison County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby