Rensselaer County GIS Maps
Rensselaer County, New York, has 161,130 residents across 64,326 parcels and covers 652.5 square miles. The population grew 1.1% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Rensselaer County is 36083.
Troy is the county's largest population center. Rensselaer County also includes 26 zip codes, 16 public school districts and 38 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show parcel data, population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers, Parcels and sample data. Paid packages add full layers, analytics and database files.
Rensselaer County Trends
- Population
- 161,130▴
- Median Home Value
- $244,300▴
- K-12 Enrollment
- 22,108▾
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
Rensselaer County Maps
The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.
County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.
Rensselaer County Parcels
Rensselaer County has 64,326 mapped parcels covering 417,648 acres. The median assessed value is $98,000. The median lot size is 0.52 acres. 6,813 parcels are 10 acres or larger. Of the parcels with a recorded build year, half were built in 1957 or earlier. The records carry 54,101 distinct owner names. About 4% of parcels list an owner mailing address outside New York. Owner names, site addresses, assessed values and lot sizes are on nearly every parcel. Mailing addresses reach 94.0%. Browse the interactive Rensselaer County Parcel viewer here.
Rensselaer County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 64,326 | 100% |
| Owner name | 64,326 | 100% |
| Owner mailing address | 60,458 | 94.0% |
| Site address | 64,326 | 100% |
| Land use code | 64,322 | 99.9% |
| Land use description | 3,883 | 6.0% |
| Assessed value | 64,322 | 99.9% |
| Land value | 64,322 | 99.9% |
| Improvement value | 0 | 0% |
| Acreage | 64,322 | 99.9% |
| Parcel boundary | 64,326 | 100% |
| Download all Rensselaer County parcels. | ||
Field coverage measured across all Rensselaer County parcel records.
Rensselaer County Population
Rensselaer County had 161,130 residents in 2020. That was 1.1% higher than in 2010. Rensselaer County added 8,592 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 247 people per square mile. Some of the county's most populated postal areas include Troy, Rensselaer and Troy.
Population Trend in Rensselaer County NY
Rensselaer County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Rensselaer County Zip Codes
Rensselaer County has 26 zip codes. Some of the county's most populated zip codes include Troy (12180), Rensselaer (12144) and Troy (12182). Troy is the largest zip by population, with about 55,907 residents or 35% of the county total. Together, the three largest zips account for about 57% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Rensselaer County NY
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 12180 | Troy | 55,907 | ▴ 4.3% |
| 12144 | Rensselaer | 21,277 | ▴ 3.5% |
| 12182 | Troy | 14,657 | ▾ -0.5% |
| 12061 | East Greenbush | 9,404 | ▴ 3.9% |
| 12033 | Castleton On Hudson | 8,076 | ▴ 2.9% |
| Download all zip code data | |||
Rensselaer County Zip Code populations and trends per most recent census data.
Rensselaer County Demographics
Rensselaer County has a median age of 40.2, which is close to the New York average. About 19.2% of residents are under 18, while 17.9% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 32.3% of the population, which points to a solid working-age base. About 37.3% of adults have a bachelor's degree or higher, above the statewide figure of 39.6%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Rensselaer County NY
Median Age
40.2
Under 18
19.2%
Age 65+
17.9%
Bachelor's+
37.3%
Rensselaer County School Districts
Rensselaer County is served by 16 public school districts with 22,108 students enrolled in 2024. The largest districts on the county map are East Greenbush Central, Troy City and Averill Park Central. Those three districts account for about 46% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.
Largest School Districts by Enrollment in Rensselaer County NY
| District | Enrollment | Share | Trend |
|---|---|---|---|
| East Greenbush Central School District | 4,085 | 18.5% | ▴ 0.6% |
| Troy City School District | 3,522 | 15.9% | ▾ -0.5% |
| Averill Park Central School District | 2,543 | 11.5% | ▾ -1.7% |
| Lansingburgh Central School District | 2,060 | 9.3% | ▴ 0.4% |
| Kinderhook Central School District (Ichabod Crane) | 1,679 | 7.6% | ▴ 0.5% |
| Download all school district data | |||
Rensselaer County school district enrollment and trends per most recent NCES reporting data.
Rensselaer County Housing & Real Estate
Rensselaer County has a median home value of $244,300 and a median gross rent of $1,182. About 64% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the New York median, while rents come in below the state average. In March 2026, the median listing price was $349,900 and homes spent about 57 days on the market.
Rensselaer County Housing Mix
Rensselaer County housing mix: owner, renter and vacant units.
Rensselaer County Housing Trends
Rensselaer County median home value and rent trend (last 5 years).
Businesses in Rensselaer County, NY
Rensselaer County has 5,609 business listings across 716 categories. The largest categories in Rensselaer County business listings are Landmark And Historical Building (121, 2.2%), Churches & Religious Organizations (113, 2.0%), and Farm (105, 1.9%). The full Rensselaer County business listings dataset includes names, categories, addresses and contact details where available. Rensselaer County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Rensselaer County, NY
| Category | Businesses | Share |
|---|---|---|
| Landmark And Historical Building | 121 | 2.2% |
| Churches & Religious Organizations | 113 | 2.0% |
| Farm | 105 | 1.9% |
| Community & Nonprofits | 87 | 1.6% |
| Auto Repair | 86 | 1.5% |
| Convenience Stores | 83 | 1.5% |
| Contractors | 80 | 1.4% |
| Pizza Restaurants | 78 | 1.4% |
| Medical Offices | 75 | 1.3% |
| Parks & Recreation | 62 | 1.1% |
Rensselaer County Business Listings
| Business | Category | City |
|---|---|---|
| Elizabeth House | Abuse And Addiction Treatment | Troy |
| RPI Bookstore | Academic Bookstore | Troy |
| College Suites at City Station | Accommodation | Troy |
| With - Kehn | Accountant | Wynantskill |
| Petersburgh Pass | Active Life | Petersburg |
| Island Acupuncture | Acupuncture | Troy |
| Family Focus Adoption Services | Adoption Services | Castleton-on-Hudson |
| Candy House Cabaret | Adult Entertainment | Wynantskill |
| Umbrella Branding Solutions | Advertising Agency | Troy |
| J C Tractor Repair and Restoration | Agricultural Service | Hoosick Falls |
| Download Rensselaer County business listings | ||
Rensselaer County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Rensselaer County Basemaps
Rensselaer County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.
Get the Full Rensselaer County Data Package
This page shows a preview of what's included in the Rensselaer County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for parcels, zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border Rensselaer County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.