Petersburgh is a town in Rensselaer County, New York, home to about 1,310 people across 42 square miles. Its ZIP code is 12138.
Homes sold for a median of $260 per square foot in the three months ending August 2026, a seller’s market.
Mostly Petersburgh; also Berlin and Poestenkill
Each card is that ZIP code’s whole market, including any part outside Petersburgh. 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)23 miles away |
|---|---|
| Nearest city of 250,000+ | Boston, MA122 miles away |
| Nearest city of 1 million+ | New York, NY147 miles away |
Straight-line distances from the center of Petersburgh; 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.
Petersburgh had 1,372 residents in the 2020 census, down 12% since 2000.
It’s the 806th largest of 1,007 towns in New York by population.
Rensselaer County grew from 121,697 residents in 1900 to 161,130 in 2020.
Rensselaer County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 78°F in summer, and winter lows average 14°F. About 47.1 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Grafton, NY weather station (7 miles away).
46,817 jobs at 2,985 businesses in Rensselaer County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
4 doctors and other health care providers list an office in Petersburgh.
Nearest hospitals
Providers with an office here
| Mental health providers | 3 |
|---|---|
| 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.
Libraries (1 nearby)
Museums
Theaters and performance venues
Counts are within about 4.5 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 Berlin, Poestenkill and Grafton.
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.