County Maps US

Chemung County, New York

A county in New York, ranked 33 of 62 by population.

CountyFIPS 36015

Within New York
Chemung County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Elmira, the county seat, located via the 2025 Census Gazetteer.

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Population
80,415
-3,237 (-3.9%) since 2020
Land area
407.3
square miles. A further 0.8% of the total area is water
Population density
197
people per square mile, computed rather than published
County seat
Elmira
Seat of county government.
Established
1836
189 years ago
Largest city
Elmira city
Population 26,089.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Chemung County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Chemung County, New York from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 744 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Chemung County ranks

Position among the 62 counties of New York, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn New YorkNationally
Population80,41533rd of 62731st of 3,144
Land area407.3 sq mi48th of 622,483rd of 3,144
Population density197 per sq mi23rd of 62572nd of 3,144
Median household income$63,71654th of 621,729th of 3,143

Full data for Chemung County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population80,415Vintage 2025 Population Estimates
Population in 202083,652Vintage 2025 Population Estimates
2020 estimates base?84,148Vintage 2025 Population Estimates
Land area407.3 sq mi2025 Gazetteer Files
Water area3.4 sq mi2025 Gazetteer Files
Total area410.8 sq mi2025 Gazetteer Files
Population density?197 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$63,716American Community Survey 2020-2024 5-Year Estimates
Median home value$141,100American Community Survey 2020-2024 5-Year Estimates
Median age42.0American Community Survey 2020-2024 5-Year Estimates
Households35,262American Community Survey 2020-2024 5-Year Estimates
Housing units39,252American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-318
753 births, 1,071 deaths
Net migration
-109
More people moved out than moved in.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 6 areas bordering Chemung County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Schuyler CountyNew York25 mi16,924
Tioga CountyNew York22 mi47,453
Steuben CountyNew York19 mi91,855
Bradford CountyPennsylvania19 mi59,600
Tompkins CountyNew York4.2 mi104,047
Tioga CountyPennsylvania2.0 mi40,502

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 62 counties of New York

Open the interactive New York county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.