Arietta is a town in Hamilton County, New York, home to about 264 people across 317 square miles. Its ZIP code is 12139, and parts of 12032 and 12847 are in Arietta too.
Homes sold for a median of $382 per square foot in the three months ending August 2026.
Mostly Caroga; part is in Arietta
Mostly Long Lake; part is in Arietta
Each card is that ZIP code’s whole market, including any part outside Arietta. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Albany International Airport (ALB)62 miles away |
|---|---|
| Nearest city of 250,000+ | Newark, NJ191 miles away |
| Nearest city of 1 million+ | New York, NY196 miles away |
Straight-line distances from the center of Arietta; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Arietta had 292 residents in the 2020 census, up 0% since 2000.
It’s the 994th largest of 1,007 towns in New York by population.
Hamilton County grew from 4,947 residents in 1900 to 5,107 in 2020.
Hamilton County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 75°F in summer, and winter lows average 6°F. About 43.6 inches of rain and melted snow fall in a typical year, with about 102 inches of snow.
Source: NOAA 1991–2020 climate normals, Indian Lake 2sw, NY weather station (23 miles away).
936 jobs at 188 businesses in Hamilton County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Parks (1 nearby)
Grocery stores (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Counts are within about 8 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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Shares ZIP codes with Long Lake, Caroga and Colton.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.