Northeastern Connecticut County GIS Maps
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Northeastern Connecticut County, Connecticut, has 95,829 residents across 46,184 parcels and covers 553.9 square miles. The FIPS code for Northeastern Connecticut County is 09150. Danielson is the county's largest population center. Northeastern Connecticut County also includes 26 zip codes, 4 public school districts and 16 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.
Northeastern Connecticut County Trends
- Population
- 95,829—
- Median Home Value
- $281,300▴
- K-12 Enrollment
- 6,079▾
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.
Northeastern Connecticut 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.
Northeastern Connecticut County Parcels
Northeastern Connecticut County has 46,184 mapped parcels. The median assessed value is $185,500. The median lot size is 1.70 acres. 6,254 parcels are 10 acres or larger. Single family homes account for 27.2% of parcels. Residential follows at 20.6%. Of the parcels with a recorded build year, half were built in 1973 or earlier. The records carry 37,551 distinct owner names. About 7% of parcels list an owner mailing address outside Connecticut. Owner names, mailing addresses and assessed values are on nearly every parcel. Site addresses reach 60.2%. Lot sizes reach 95.3%. Browse the interactive Northeastern Connecticut County Parcel viewer here.
Northeastern Connecticut County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 46,190 | 100% |
| Owner name | 45,507 | 98.5% |
| Owner mailing address | 45,483 | 98.5% |
| Site address | 27,826 | 60.2% |
| Land use code | 45,510 | 98.5% |
| Land use description | 45,510 | 98.5% |
| Assessed value | 45,511 | 98.5% |
| Land value | 45,511 | 98.5% |
| Improvement value | 45,511 | 98.5% |
| Acreage | 43,999 | 95.3% |
| Parcel boundary | 46,184 | 99.9% |
| Download all Northeastern Connecticut County parcels. | ||
Field coverage measured across all Northeastern Connecticut County parcel records.
Northeastern Connecticut County Population
Northeastern Connecticut County had 95,829 residents in 2020. Recent census data shows how the county has changed over time. Long-term census counts show how the county has changed across recent decades. Danielson is the largest city in the county, with about 4,155 residents. Some of the county's most populated postal areas include Danielson, Putnam and Brooklyn.
Population Trend in Northeastern Connecticut County CT
Northeastern Connecticut County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Northeastern Connecticut County Zip Codes
Northeastern Connecticut County has 26 zip codes. Some of the county's most populated zip codes include Danielson (06239), Putnam (06260) and Brooklyn (06234). The largest zip areas account for a meaningful share of the county population. Together, the three largest zips account for about 0% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Northeastern Connecticut County CT
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 06239 | Danielson | 11,410 | ▴ 2% |
| 06260 | Putnam | 9,236 | ▾ -2.9% |
| 06234 | Brooklyn | 8,484 | ▴ 2.9% |
| 06374 | Plainfield | 8,108 | ▾ -3.2% |
| 06281 | Woodstock | 7,021 | ▴ 1.3% |
| Download all zip code data | |||
Northeastern Connecticut County Zip Code populations and trends per most recent census data.
Northeastern Connecticut County Demographics
Northeastern Connecticut County has a median age of 43.9, which makes the county a little older than Connecticut overall. About 18.6% of residents are under 18, while 19% 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 31.6% of the population, which points to a solid working-age base. About 26.2% of adults have a bachelor's degree or higher, above the statewide figure of 41.9%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Northeastern Connecticut County CT
Median Age
43.9
Under 18
18.6%
Age 65+
19%
Bachelor's+
26.2%
Northeastern Connecticut County School Districts
Northeastern Connecticut County is served by 4 public school districts with 6,079 students enrolled in 2024. The largest districts on the county map are Killingly, Plainfield and Putnam. Those three districts account for about 87% 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 Northeastern Connecticut County CT
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Killingly School District | 2,238 | 36.8% | ▾ -1.5% |
| Plainfield School District | 1,872 | 30.8% | ▴ 4.2% |
| Putnam School District | 1,164 | 19.1% | — 0% |
| Thompson School District | 805 | 13.2% | ▾ -7% |
| Download all school district data | |||
Northeastern Connecticut County school district enrollment and trends per most recent NCES reporting data.
Northeastern Connecticut County Housing & Real Estate
Northeastern Connecticut County has a median home value of $281,300 and a median gross rent of $1,153. About 76% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Connecticut median, while rents come in below the state average. In March 2026, the median listing price was $440,000 and homes spent about 45 days on the market.
Northeastern Connecticut County Housing Mix
Northeastern Connecticut County housing mix: owner, renter and vacant units.
Northeastern Connecticut County Housing Trends
Northeastern Connecticut County median home value and rent trend (last 5 years).
Businesses in Northeastern Connecticut County, CT
Northeastern Connecticut County has 3,731 business listings across 564 categories. The largest categories in Northeastern Connecticut County business listings are Farm (121, 3.2%), Churches & Religious Organizations (86, 2.3%), and Contractors (76, 2.0%). The full Northeastern Connecticut County business listings dataset includes names, categories, addresses and contact details where available. Northeastern Connecticut County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Northeastern Connecticut County, CT
| Category | Businesses | Share |
|---|---|---|
| Farm | 121 | 3.2% |
| Churches & Religious Organizations | 86 | 2.3% |
| Contractors | 76 | 2.0% |
| Real Estate Agents | 62 | 1.7% |
| Auto Repair | 61 | 1.6% |
| Landmark And Historical Building | 55 | 1.5% |
| Parks & Recreation | 52 | 1.4% |
| Gas Stations | 49 | 1.3% |
| Hair Salons | 47 | 1.3% |
| Beauty Salons | 43 | 1.2% |
Northeastern Connecticut County Business Listings
| Business | Category | City |
|---|---|---|
| Milestone Alcohol & Drug Center | Abuse And Addiction Treatment | Putnam |
| Salem Village | Accommodation | Brooklyn |
| Peloquin & Co | Accountant | Danielson |
| Montana Nights Axe Throwing- Putnam | Active Life | Putnam |
| The Pampered Porcupine Acupuncture, Inc. | Acupuncture | Scotland |
| Inspire Marketing | Advertising Agency | Brooklyn |
| Rawson Materials | Aggregate Supplier | Putnam |
| Starchild Farms | Agricultural Production | Central Village |
| Plainfield Agway | Agricultural Service | Plainfield |
| Cargene's Backwoods Butchery2 | Agriculture | Plainfield |
| Download Northeastern Connecticut County business listings | ||
Northeastern Connecticut County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Northeastern Connecticut County Basemaps
Northeastern Connecticut 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 Northeastern Connecticut County Data Package
This page shows a preview of what's included in the Northeastern Connecticut 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 Northeastern Connecticut County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.