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Poestenkill

A town of 4,327 people in Rensselaer County, New York
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About Poestenkill

Town in Rensselaer County, New York
1770Established
4,322Population
32.6 sq miArea
928 ftElevation

Poestenkill is a town in Rensselaer County, New York, United States. The population was 4,322 at the 2020 census. The town is southeast of Troy and is centrally located in the county. The town is named after the Poesten Kill, an important stream in the area. The phrase poesten kil (with only one l) is traditionally said to be Dutch for "foaming water" or "foaming creek". While kil is, indeed, Dutch for "water" or "creek", Dutch dictionaries do not support the claim of poest meaning "foam". It seems more likely that the creek was named after the nickname Poest for the 17th-century local farmer and miller Jan Barentsen Wemp, who had a pimple (poest) or had difficulty breathing (poesten = to b…

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

Town numbers

ZIP code12140
Area code518
Living in Poestenkill

Housing in Poestenkill

$425K Median sale price · Redfin, March 2026

The median sale price was $425,000 in March 2026.

Zillow Home Value Index · Redfin Data CenterHousing market →

Work & commute in Poestenkill

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Most working residents leave Poestenkill for work: only 4% work in town. The top destinations are Albany (21%), Colonie (12%) and Troy (8%). Half commute less than 11 miles.

Albany
21%
Colonie
12%
Troy
8%
East Greenbush
7%
Census LEHD 2023 · ACSWork & commute in Poestenkill →

Health in Poestenkill

A

Health Grade A

Healthier than 87% of U.S. towns on seven CDC estimates.

Compared with New York

13better than NY·2worse

of 32 measures CDC estimates. The other 17 are too close to call.

BetterToo close to callWorse

What stands out

Care nearby

Samaritan Hospital of Troy, New YorkTroy · 7.9 mi · ER
Watervliet Health CenterWatervliet · 9.3 mi · sliding-scale fees
Primary careNo shortage
DentalNo shortage
Mental healthNo shortage
CDC PLACES 2025 · modeled estimates for adults · ZIP codes 12018, 12140, 12138 · CMS · HRSAHealth in Poestenkill →

Natural hazards in Poestenkill

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

Climate in Poestenkill

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Poestenkill has cold, snowy winters and pleasant summers. A typical July afternoon reaches 80°, a January night drops to 14°, and about 53 inches of snow falls in a normal winter.

34° / 17°Winter
55° / 35°Spring
78° / 57°Summer
59° / 40°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Poestenkill →

Schools in Poestenkill

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B+

School Grade B+

The public schools Poestenkill’s kids attend, from kindergarten through graduation, outperform 65% of New York’s districts on state tests and graduation. Among towns with similar incomes, they sit near the middle.

See how Poestenkill’s schools compare in NY →
DistrictAVERILL PARK CENTRAL SCHOOL DISTRICTSchools2

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within NY. Ratings are from neighbors.

Famous people from PoestenkillWriters, athletes, leaders and more who were born in Poestenkill.Meet them →

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We left the porch light on

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You’re in Poestenkill, NYRensselaer 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