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Welcome to Rensselaer County ...

Time Zone: Rensselaer County lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time.

The community of Troy is the Seat for Rensselaer County.

Rensselaer County was founded in 1791 and was created by taking area from Albany County.

From the Census Estimates for 2019, <1> Rensselaer had a population of 158,714 people. This is a decrease of 0.39% since the last Census (which gave a population of 159,340 people in 2010).

At the time of the 2010 Census, Rensselaer represented 0.82% of the total population of New York.

Below are some of the communities located in Rensselaer County:

  • Berlin
    (11 miles [17.7 km] to the east)
    • Berlin is located in Rensselaer County (NY)
    • Jump to our Gazetteer entry for Berlin
    • Population from the 2020 Census: 1,800 people
  • Brunswick
    (3 miles [4.8 km] to the north)
    • Brunswick is located in Rensselaer County (NY)
    • Jump to our Gazetteer entry for Brunswick
    • Population from the 2020 Census: 13,048 people
  • Castleton-on-Hudson
    (13 miles [20.9 km] to the southwest)
  • East Greenbush
    (7 miles [11.3 km] to the southwest)
    • East Greenbush is located in Rensselaer County (NY)
    • Jump to our Gazetteer entry for East Greenbush
    • Population from the 2020 Census: 16,127 people
  • East Nassau
    (12 miles [19.3 km] to the south)
    • East Nassau is located in Rensselaer County (NY)
    • Jump to our Gazetteer entry for East Nassau
    • Population from the 2020 Census: 566 people
  • Grafton
    (8 miles [12.9 km] to the northeast)
    • Grafton is located in Rensselaer County (NY)
    • Jump to our Gazetteer entry for Grafton
    • Population from the 2020 Census: 2,151 people
  • Hoosick
    (17 miles [27.4 km] to the northeast)
    • Hoosick is located in Rensselaer County (NY)
    • Jump to our Gazetteer entry for Hoosick
    • Population from the 2020 Census: 6,711 people
  • Hoosick Falls
    (18 miles [29 km] to the northeast)
  • Continue List   (14 more) ...
    • Nassau
      (12 miles [19.3 km] to the south)
      • Nassau is located in Rensselaer County (NY)
      • Jump to our Gazetteer entry for Nassau
      • Population from the 2020 Census: 1,093 people
      • Jump to TripAdvisor's Tourism page for Nassau <2>
    • North Greenbush
      (3 miles [4.8 km] to the southwest)
      • North Greenbush is located in Rensselaer County (NY)
      • Jump to our Gazetteer entry for North Greenbush
      • Population from the 2020 Census: 12,286 people
    • Petersburgh
      (14 miles [22.5 km] to the northeast)
      • Petersburgh is located in Rensselaer County (NY)
      • Jump to our Gazetteer entry for Petersburgh
      • Population from the 2020 Census: 1,471 people
    • Pittstown
      (12 miles [19.3 km] to the north)
      • Pittstown is located in Rensselaer County (NY)
      • Jump to our Gazetteer entry for Pittstown
      • Population from the 2020 Census: 5,530 people
    • Poestenkill
      (3 miles [4.8 km] to the east)
      • Poestenkill is located in Rensselaer County (NY)
      • Jump to our Gazetteer entry for Poestenkill
      • Population from the 2020 Census: 4,479 people
    • Rensselaer
      (8 miles [12.9 km] to the southwest)
    • Sand Lake
      (5 miles [8 km] to the southeast)
      • Sand Lake is located in Rensselaer County (NY)
      • Jump to our Gazetteer entry for Sand Lake
      • Population from the 2020 Census: 8,422 people
    • Schaghticoke
      (13 miles [20.9 km] to the north)
    • Schodack
      (12 miles [19.3 km] to the south)
      • Schodack is located in Rensselaer County (NY)
      • Jump to our Gazetteer entry for Schodack
      • Population from the 2020 Census: 13,079 people
    • Stephentown
      (13 miles [20.9 km] to the southeast)
      • Stephentown is located in Rensselaer County (NY)
      • Jump to our Gazetteer entry for Stephentown
      • Population from the 2020 Census: 2,861 people
    • Troy
      (4 miles [6.4 km] to the northwest)
      • Troy is located in Rensselaer County (NY)
      • Jump to our Gazetteer entry for Troy
      • Population from the 2020 Census: 48,804 people
      • Jump to TripAdvisor's Tourism page for Troy <2>
    • Valley Falls
      (14 miles [22.5 km] to the north)

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census.
<2>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.