Ulster County, New York

A county in New York, ranked 20 of 62 by population.

CountyFIPS 36111

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

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Population
183,330
+2,026 (+1.1%) since 2020
Land area
1,124
square miles. A further 3.1% of the total area is water
Population density
163
people per square mile, computed rather than published
County seat
Kingston
Seat of county government.
Established
1683
342 years ago
Largest city
Kingston city
Population 23,942.

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 Ulster 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 Ulster 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 743 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 Ulster 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
Population183,33020th of 62382nd of 3,144
Land area1,124 sq mi12th of 62560th of 3,144
Population density163 per sq mi26th of 62658th of 3,144
Median household income$86,27112th of 62395th of 3,143

Full data for Ulster County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population183,330Vintage 2025 Population Estimates
Population in 2020181,304Vintage 2025 Population Estimates
2020 estimates base?181,835Vintage 2025 Population Estimates
Land area1,124 sq mi2025 Gazetteer Files
Water area36.5 sq mi2025 Gazetteer Files
Total area1,161 sq mi2025 Gazetteer Files
Population density?163 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$86,271American Community Survey 2020-2024 5-Year Estimates
Median home value$352,500American Community Survey 2020-2024 5-Year Estimates
Median age44.1American Community Survey 2020-2024 5-Year Estimates
Households74,278American Community Survey 2020-2024 5-Year Estimates
Housing units86,503American 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
-492
1,377 births, 1,869 deaths
Net migration
+720
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 6 areas bordering Ulster 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
Sullivan CountyNew York47 mi80,586
Dutchess CountyNew York35 mi300,708
Greene CountyNew York35 mi47,238
Orange CountyNew York31 mi417,669
Delaware CountyNew York20 mi44,305
Columbia CountyNew York3.5 mi60,168

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.