County hub rural New York

Rensselaer County, NY

Aggregated demographic, housing, and geographic context for the 26 ZIP codes inside Rensselaer County, drawn from public Census ACS and SimpleMaps data.

ZIP codes
26
in this county
Total population
160,523
across all listed ZIPs
Cities
24
distinct city/town names
Avg density
110
people / sq mi
Avg median income
household, ACS
Avg home value
owner-occupied

ZIP codes in Rensselaer County

ZIPCityPopulationDensityMedian income
12180 Troy 53,729 369
12144 Rensselaer 21,623 456
12182 Troy 14,643 414
12061 East Greenbush 10,072 194
12033 Castleton On Hudson 8,079 109
12018 Averill Park 7,470 62
12198 Wynantskill 7,109 207
12090 Hoosick Falls 5,701 38
12123 Nassau 4,753 58
12196 West Sand Lake 3,940 170
12154 Schaghticoke 3,157 29
12138 Petersburg 2,923 13
12094 Johnsonville 2,525 31
12121 Melrose 2,262 45
12052 Cropseyville 2,149 28
12185 Valley Falls 1,795 30
12168 Stephentown 1,794 23
12062 East Nassau 1,561 18
12140 Poestenkill 1,504 81
12022 Berlin 931 15
12156 Schodack Landing 912 24
12153 Sand Lake 799 18
12063 East Schodack 685 207
12169 Stephentown 380 13
12040 Cherry Plain 25 162
12082 Grafton 2 41

About Rensselaer County

Counties are the workhorse unit of American local government — they administer property taxes, run the courts and sheriff’s office, manage many road and library systems, and in much of the country they collect public health and zoning data that ZIP codes don’t. Rensselaer County in New York contains roughly 26 ZIP codes spread across 24 distinct cities and unincorporated communities, with an aggregate population of about 160,523. Reading those ZIPs together at the county level smooths over neighborhood-by-neighborhood noise and surfaces the broader economic and demographic shape of the area. For block-level detail, drill into any individual ZIP profile or compare against the wider New York index.

The average density across listed ZIPs sits at roughly 110, which classifies the county overall as a rural environment. That label is a generalization — nearly every county contains both a relatively dense core and quieter outlying ZIPs, and the gap between them is often what determines where you actually want to live or open a business. Average median household income in our enriched ZIPs lands near —, with average owner-occupied home values around —; both numbers move dramatically as you cross from one ZIP to the next, so use the table above as a sorting tool, not a verdict.

If you’re moving into Rensselaer County, the county itself is also where most of your real-life paperwork will land — vehicle registration, voter registration, property recording, and school district enrollment in many states. Knowing the county that contains your prospective ZIP makes it much easier to look up the right tax assessor, election office, or school district website. Our relocation guide walks through the order in which to tackle these handoffs after a move.

For service-area planning, the county is also where most US business licensing and many sales-tax rules are administered. Service businesses scoping Rensselaer County should pair this aggregate view with the individual ZIP profiles to identify the densest, highest-income pockets first, then expand outward along whatever transportation corridor matches their delivery model.