County · code 36007
Broome CountyNew York
Broome County is a county in New York, with its seat in Binghamton. It was created in 1806 from Tioga County and named after John Broome.
- Founded1806
- County seatBinghamton
- Named forJohn Broome
- Land area706 sq mi + 9.7 sq mi water
- Population198,683 2020 Census
- Parcels mapped85,058 checked 15 October 2026
Where it is
Broome 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 Tioga County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Broome County was created from Tioga County on March 28, 1806. The county was named after John Broome. Over the following decades, Broome County lost territory to Cortland County in 1815, to the creation of Tompkins County in 1817, and to Tioga County in 1822.
- 1806Broome County created Broome created from Tioga. · N.Y. Laws 1806, 29th sess., ch. 89/p. 431
- 1815
- 1817Lost territory Broome lost small area to creation of Tompkins. · N.Y. Laws 1816, 40th sess., ch. 189, sec. 1/p. 197
- 1822
Land and parcels
What the maps cover in Broome
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 85,058 parcels from New York State Geographic Information Systems (GIS) Clearinghouse. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 25 September 2026 · checked 15 October 2026 -
Address points Official
One point per address, 114,557 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
Broome 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
County government
- County government
The official website of Broome County.
See your own lot on these maps
Open Broome 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 Broome County
- When was Broome County founded?
- Broome County was founded in 1806, formed from Tioga County, and named after John Broome.
- What is the county seat of Broome County?
- The county seat of Broome County is Binghamton.
- Is there an online parcel map for Broome County?
- Yes. New York State Geographic Information Systems (GIS) Clearinghouse publishes a parcel map of 85,058 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Broome County's boundary or name changed?
- Broome County was created in 1806 from Tioga County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Cortland County, Tioga County and Tompkins County.
- Who issues septic and well permits in Broome County?
- The county's page on septic systems and wells: Health department: septic and well.
- Is my lot in a flood zone?
- We do not have flood maps for Broome County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby