Putnam County, New York

A county in New York, ranked 29 of 62 by population.

CountyFIPS 36079

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

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Population
99,028
+1,392 (+1.4%) since 2020
Land area
230.3
square miles. A further 6.5% of the total area is water
Population density
430
people per square mile, computed rather than published
County seat
Carmel
Seat of county government.
Established
1812
213 years ago
Largest city
Brewster village
Population 2,509.

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 Putnam 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 Putnam 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 518 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 Putnam 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
Population99,02829th of 62631st of 3,144
Land area230.3 sq mi55th of 622,950th of 3,144
Population density430 per sq mi16th of 62325th of 3,144
Median household income$126,2573rd of 6238th of 3,143

Full data for Putnam County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population99,028Vintage 2025 Population Estimates
Population in 202097,636Vintage 2025 Population Estimates
2020 estimates base?97,680Vintage 2025 Population Estimates
Land area230.3 sq mi2025 Gazetteer Files
Water area15.9 sq mi2025 Gazetteer Files
Total area246.2 sq mi2025 Gazetteer Files
Population density?430 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$126,257American Community Survey 2020-2024 5-Year Estimates
Median home value$471,300American Community Survey 2020-2024 5-Year Estimates
Median age44.0American Community Survey 2020-2024 5-Year Estimates
Households35,545American Community Survey 2020-2024 5-Year Estimates
Housing units38,450American 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
+134
928 births, 794 deaths
Net migration
+50
More people moved in than moved out.

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

The 5 areas bordering Putnam 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
Dutchess CountyNew York25 mi300,708
Westchester CountyNew York23 mi1,015,743
Western Connecticut Planning RegionConnecticut11 mi640,482
Orange CountyNew York8.9 mi417,669
Rockland CountyNew York0.3 mi357,397

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.