Coos County GIS Maps
Home » New Hampshire » Coos County
Coos County, New Hampshire, has 31,268 residents across 25,168 parcels and covers 1,794.6 square miles. The population declined 5.4% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Coos County is 33007.
Berlin is the county's largest population center. Coos County also includes 14 zip codes, 11 public school districts and 62 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.
Coos County Trends
- Population
- 31,268▾
- Median Home Value
- $169,600▴
- K-12 Enrollment
- 2,909▾
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.
Coos 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.
Coos County Parcels
Coos County has 25,168 mapped parcels covering 1,194,025 acres. Site addresses reach 96.2%. Browse the interactive Coos County Parcel viewer here.
Coos County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 25,168 | 100% |
| Owner name | 0 | 0% |
| Owner mailing address | 0 | 0% |
| Site address | 24,215 | 96.2% |
| Land use code | 24,217 | 96.2% |
| Land use description | 0 | 0% |
| Assessed value | 0 | 0% |
| Land value | 0 | 0% |
| Improvement value | 0 | 0% |
| Acreage | 0 | 0% |
| Parcel boundary | 25,168 | 100% |
| Download all Coos County parcels. | ||
Field coverage measured across all Coos County parcel records.
Coos County Population
Coos County had 31,268 residents in 2020. That was 5.4% lower than in 2010. Coos County had 1,843 fewer people in 2020 than it did in 2000, which points to a long-term population decline. Berlin is the largest city in the county, but it accounts for only about 30% of the total population. The county is fairly spread out, with about 17 people per square mile. Some of the county's most populated postal areas include Berlin, Lancaster and Whitefield.
Population Trend in Coos County NH
Coos County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Coos County Zip Codes
Coos County has 14 zip codes. Some of the county's most populated zip codes include Berlin (03570), Lancaster (03584) and Whitefield (03598). Berlin is the largest zip by population, with about 9,429 residents or 30% of the county total. Together, the three largest zips account for about 52% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Coos County NH
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 03570 | Berlin | 9,429 | ▾ -6.2% |
| 03584 | Lancaster | 3,490 | ▾ -7.5% |
| 03598 | Whitefield | 3,393 | ▴ 3.3% |
| 03581 | Gorham | 3,053 | ▾ -5.5% |
| 03576 | Colebrook | 2,939 | ▾ -9.2% |
| Download all zip code data | |||
Coos County Zip Code populations and trends per most recent census data.
Coos County Demographics
Coos County has a median age of 49.9, which makes the county a little older than New Hampshire overall. About 16% of residents are under 18, while 25.2% 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 28.2% of the population, which points to a solid working-age base. About 20.2% of adults have a bachelor's degree or higher, above the statewide figure of 39.8%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Coos County NH
Median Age
49.9
Under 18
16%
Age 65+
25.2%
Bachelor's+
20.2%
Coos County School Districts
Coos County is served by 11 public school districts with 2,909 students enrolled in 2024. The largest districts on the county map are Berlin, White Mountain Regional and Gorham Randolph Shelburne Cooperative. Those three districts account for about 77% 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 Coos County NH
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Berlin School District | 969 | 33.3% | ▾ -3.4% |
| White Mountain Regional School District | 885 | 30.4% | ▾ -8.8% |
| Gorham Randolph Shelburne Cooperative School District | 372 | 12.8% | ▴ 0.5% |
| Northumberland School District | 316 | 10.9% | ▴ 3.3% |
| Colebrook School District | 288 | 9.9% | ▾ -5.3% |
| Download all school district data | |||
Coos County school district enrollment and trends per most recent NCES reporting data.
Coos County Housing & Real Estate
Coos County has a median home value of $169,600 and a median gross rent of $843. About 74% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the New Hampshire median, while rents come in below the state average. In March 2026, the median listing price was $296,000 and homes spent about 125 days on the market.
Coos County Housing Mix
Coos County housing mix: owner, renter and vacant units.
Coos County Housing Trends
Coos County median home value and rent trend (last 5 years).
Businesses in Coos County, NH
Coos County has 2,225 business listings across 423 categories. The largest categories in Coos County business listings are Mountain (85, 3.8%), Structure And Geography (77, 3.5%), and Campgrounds & RV Parks (67, 3.0%). The full Coos County business listings dataset includes names, categories, addresses and contact details where available. Coos County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Coos County, NH
| Category | Businesses | Share |
|---|---|---|
| Mountain | 85 | 3.8% |
| Structure And Geography | 77 | 3.5% |
| Campgrounds & RV Parks | 67 | 3.0% |
| Hotels | 59 | 2.7% |
| Convenience Stores | 45 | 2.0% |
| Parks & Recreation | 42 | 1.9% |
| Farm | 42 | 1.9% |
| Churches & Religious Organizations | 40 | 1.8% |
| Auto Repair | 36 | 1.6% |
| Gas Stations | 34 | 1.5% |
Coos County Business Listings
| Business | Category | City |
|---|---|---|
| Parsons Street Suites | Accommodation | Colebrook |
| Affordable Payroll | Accountant | Berlin |
| Lemieux Garage | Active Life | Colebrook |
| North Woods Acupuncture | Acupuncture | Berlin |
| Phlume Media | Advertising Agency | Lancaster |
| Caron's Yahrd Scaping | Agricultural Cooperatives | Groveton |
| Colebrook Feeds Farm and Garden Supply | Agricultural Service | Colebrook |
| Mullins Farm Maple | Agriculture | Milan |
| Berlin Regional Airport | Airport | Coös County |
| 45th Parallel Ems | Ambulance And Ems Services | Colebrook |
| Download Coos County business listings | ||
Coos County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Coos County Basemaps
Coos 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 Coos County Data Package
This page shows a preview of what's included in the Coos 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.
One-time · instant download · 30-day refund guarantee · See full package details
Preview a Live Package Demo
See exactly what is included in a county data package. Inspect how files are organized, the interactive data explorer and how maps and analytics are laid out. The demo loads a real sample package from New Hampshire — explore the full structure before you buy.
No email or download required. Opens in a preview window on this page.
Nearby Counties
Browse county data pages for the counties that border Coos County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.