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Denning

A town of 493 people in Ulster County, New York
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Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US

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About Denning

Town in New York, United States
1849Established
493Population
105.8 sq miArea
1,960 ftElevation

Denning is an isolated town in Ulster County, New York, United States. The population was 493 at the 2020 census. The town is named after an early landowner, William Denning. Denning is located in the western part of the county, deep inside the Catskill Mountains. The location of the town in the Catskill State Park accounts in part for its low population.

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

Area code845
Living in Denning

Work & commute in Denning

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Most working residents leave Denning for work: only 10% work in town. The top destinations are New York (8%), Shandaken (8%) and Rockland (5%). Half commute less than 35 miles.

New York
8%
Shandaken
8%
Rockland
5%
Hardenburgh
4%
Census LEHD 2023 · ACSWork & commute in Denning →

Health in Denning

Compared with New York

9better than NY·4worse

of 32 measures CDC estimates. The other 19 are too close to call.

BetterToo close to callWorse

What stands out

Care nearby

Margaretville Memorial HospitalMargaretville · 15.7 mi · ER · rural critical access
Ellenville Health CenterEllenville · 14.6 mi · sliding-scale fees
Primary careShortage · county-wide
DentalNo shortage
Mental healthNo shortage
CDC PLACES 2025 · modeled estimates for adults · ZIP codes 12725, 12740, 12410 · CMS · HRSAHealth in Denning →

Natural hazards in Denning

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Denning →

Climate in Denning

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Denning has cold, snowy winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 76°, a January night drops to 13°, and about 105 inches of snow falls in a normal winter.

32° / 16°Winter
53° / 32°Spring
74° / 53°Summer
57° / 38°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Denning →

Libraries near Denning

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Nearest: Daniel Pierce LibraryGrahamsville · 8.1 miles · 39 hrs a week

Famous people close to Denning

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The porch light’s on

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You’re in Denning, NYUlster CountyView boundary

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01