Martin County GIS Maps
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Martin County, North Carolina, has 22,031 residents across 17,279 parcels and covers 456.4 square miles. The population declined 10.1% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Martin County is 37117.
Williamston is the county's largest population center. Martin County also includes 8 zip codes, 1 public school district and 21 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.
Martin County Trends
- Population
- 22,031▾
- Median Home Value
- $109,900▴
- K-12 Enrollment
- 2,647▴
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.
Martin 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.
Martin County Parcels
Martin County has 17,279 mapped parcels covering 285,355 acres. The median assessed value is $72,650. The median lot size is 0.81 acres. 3,220 parcels are 10 acres or larger. The records carry 10,881 distinct owner names. About 9% of parcels list an owner mailing address outside North Carolina. Owner names, mailing addresses, site addresses, assessed values and lot sizes are on nearly every parcel. Browse the interactive Martin County Parcel viewer here.
Martin County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 17,279 | 100% |
| Owner name | 17,268 | 99.9% |
| Owner mailing address | 17,249 | 99.8% |
| Site address | 17,150 | 99.3% |
| Land use code | 0 | 0% |
| Land use description | 0 | 0% |
| Assessed value | 17,279 | 100% |
| Land value | 17,279 | 100% |
| Improvement value | 17,279 | 100% |
| Acreage | 17,279 | 100% |
| Parcel boundary | 17,279 | 100% |
| Download all Martin County parcels. | ||
Field coverage measured across all Martin County parcel records.
Martin County Population
Martin County had 22,031 residents in 2020. That was 10.1% lower than in 2010. Martin County had 3,562 fewer people in 2020 than it did in 2000, which points to a long-term population decline. The county is fairly spread out, with about 48 people per square mile. Some of the county's most populated postal areas include Williamston, Robersonville and Jamesville.
Population Trend in Martin County NC
Martin County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Martin County Zip Codes
Martin County has 8 zip codes. Some of the county's most populated zip codes include Williamston (27892), Robersonville (27871) and Jamesville (27846). Williamston is the largest zip by population, with about 13,864 residents or 63% of the county total. Together, the three largest zips account for about 93% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Martin County NC
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 27892 | Williamston | 13,864 | ▾ -8.7% |
| 27871 | Robersonville | 3,951 | ▾ -14.5% |
| 27846 | Jamesville | 2,731 | ▾ -8.6% |
| 27857 | Oak City | 1,075 | ▾ -17.2% |
| 27840 | Hamilton | 457 | ▾ -11.1% |
| Download all zip code data | |||
Martin County Zip Code populations and trends per most recent census data.
Martin County Demographics
Martin County has a median age of 46.7, which makes the county a little older than North Carolina overall. About 20.3% of residents are under 18, while 25% 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 26.8% of the population, which points to a solid working-age base. About 15.1% of adults have a bachelor's degree or higher, above the statewide figure of 34.7%. The county has a more diverse population mix, with no single race or ethnicity accounting for all of the local story.
Key Demographics for Martin County NC
Median Age
46.7
Under 18
20.3%
Age 65+
25%
Bachelor's+
15.1%
Martin County School Districts
Martin County is served by 1 public school district with 2,647 students enrolled in 2024. Several larger districts account for a substantial share of students across the county map area. Those three districts account for about 100% 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 Martin County NC
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Martin County Schools | 2,647 | 100% | ▴ 1.3% |
| Download all school district data | |||
Martin County school district enrollment and trends per most recent NCES reporting data.
Martin County Housing & Real Estate
Martin County has a median home value of $109,900 and a median gross rent of $729. About 68% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the North Carolina median, while rents come in below the state average. In March 2026, the median listing price was $184,225 and homes spent about 128 days on the market.
Martin County Housing Mix
Martin County housing mix: owner, renter and vacant units.
Martin County Housing Trends
Martin County median home value and rent trend (last 5 years).
Businesses in Martin County, NC
Martin County has 968 business listings across 301 categories. The largest categories in Martin County business listings are Churches & Religious Organizations (87, 9.0%), Baptist Church (30, 3.1%), and ATMs (21, 2.2%). The full Martin County business listings dataset includes names, categories, addresses and contact details where available. Martin County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Martin County, NC
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 87 | 9.0% |
| Baptist Church | 30 | 3.1% |
| ATMs | 21 | 2.2% |
| Auto Repair | 18 | 1.9% |
| Public And Government Association | 16 | 1.7% |
| Discount Store | 16 | 1.7% |
| Gas Stations | 15 | 1.5% |
| Convenience Stores | 15 | 1.5% |
| Community & Nonprofits | 13 | 1.3% |
| Banks & Credit Unions | 12 | 1.2% |
Martin County Business Listings
| Business | Category | City |
|---|---|---|
| Williamston Scout Hut | Accommodation | Williamston |
| Grillin on the Green | Active Life | Williamston |
| simply southern boutique | Adult Store | Williamston |
| Reddick Equipment Co | Agricultural Service | Williamston |
| Chesson and Son | Agriculture | Williamston |
| AgCarolina Farm Credit | Agriculture Association | Williamston |
| Martin County Airport | Airport | Williamston |
| Roanoke Medical Transport | Ambulance And Ems Services | Williamston |
| Shamrock Restaurant | American Restaurants | Williamston |
| Deadwood | Amusement Park | Williamston |
| Download Martin County business listings | ||
Martin County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Martin County Basemaps
Martin 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 Martin County Data Package
This page shows a preview of what's included in the Martin 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 Martin County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.