Westerlo is a town in Albany County, New York, home to about 3,208 people across 58 square miles. Its ZIP code is 12193, and parts of 12023, 12083 and 12147 are in Westerlo too.
Homes sold for a median of $172 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Westerlo; also Berne
Mostly Berne; part is in Westerlo
Mostly Greenville Town (Greene County); part is in Westerlo
Mostly Rensselaerville; part is in Westerlo
Each card is that ZIP code’s whole market, including any part outside Westerlo. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Westerlo’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Albany International Airport (ALB)22 miles away |
|---|---|
| Nearest city of 250,000+ | Newark, NJ122 miles away |
| Nearest city of 1 million+ | New York, NY126 miles away |
Straight-line distances from the center of Westerlo; 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.
Westerlo had 3,194 residents in the 2020 census, down 8% since 2000.
It’s the 493rd largest of 1,007 towns in New York by population.
Albany County grew from 165,571 residents in 1900 to 314,848 in 2020.
Albany County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 80°F in summer, and winter lows average 13°F. About 42.5 inches of rain and melted snow fall in a typical year, with about 46 inches of snow.
Source: NOAA 1991–2020 climate normals, Alcove Dam, NY weather station (6 miles away).
180,421 jobs at 9,465 businesses in Albany County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
2 doctors and other health care providers list an office in Westerlo.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Physical and occupational therapists | 1 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (1 nearby)
Grocery stores (1 nearby)
Pharmacies (2 nearby)
Libraries (2 nearby)
Museums
Counts are within about 5 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 Greenville Town (Greene County), Berne, Knox, Rensselaerville, Wright, Middleburgh and Durham.
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.