Belmont County GIS Maps
Belmont County, Ohio, has 66,497 residents and covers 532.1 square miles. The population declined 5.5% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Belmont County is 39013.
Martins Ferry is the county's largest population center. Belmont County also includes 24 zip codes, 9 public school districts and 34 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 population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers and sample data. Paid packages add full layers, analytics and database files.
Belmont County Trends
- Population
- 66,497▾
- Median Home Value
- $143,000▴
- K-12 Enrollment
- 11,305▾
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.
Belmont 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.
Belmont County Population
Belmont County had 66,497 residents in 2020. That was 5.5% lower than in 2010. Belmont County had 3,729 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 125 people per square mile. Some of the county's most populated postal areas include Saint Clairsville, Martins Ferry and Bellaire.
Population Trend in Belmont County OH
Belmont County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Belmont County Zip Codes
Belmont County has 24 zip codes. Some of the county's most populated zip codes include Saint Clairsville (43950), Martins Ferry (43935) and Bellaire (43906). Saint Clairsville is the largest zip by population, with about 16,212 residents or 24% of the county total. Together, the three largest zips account for about 48% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Belmont County OH
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 43950 | Saint Clairsville | 16,212 | ▾ -3.3% |
| 43935 | Martins Ferry | 7,968 | ▾ -10.9% |
| 43906 | Bellaire | 7,952 | ▾ -8.4% |
| 43713 | Barnesville | 7,227 | ▾ -3.5% |
| 43912 | Bridgeport | 6,060 | ▾ -10.9% |
| Download all zip code data | |||
Belmont County Zip Code populations and trends per most recent census data.
Belmont County Demographics
Belmont County has a median age of 44.1, which makes the county a little older than Ohio overall. About 18.8% of residents are under 18, while 21.4% 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 30.5% of the population, which points to a solid working-age base. About 18.7% of adults have a bachelor's degree or higher, above the statewide figure of 30.9%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Belmont County OH
Median Age
44.1
Under 18
18.8%
Age 65+
21.4%
Bachelor's+
18.7%
Belmont County School Districts
Belmont County is served by 9 public school districts with 11,305 students enrolled in 2024. The largest districts on the county map are Switzerland of Ohio Local, St. Clairsville-Richland City and Buckeye Local. Those three districts account for about 43% 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 Belmont County OH
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Switzerland of Ohio Local School District | 1,883 | 16.7% | ▾ -3% |
| St. Clairsville-Richland City School District | 1,619 | 14.3% | ▾ -3.4% |
| Buckeye Local School District | 1,347 | 11.9% | ▴ 1.4% |
| Barnesville Exempted Village School District | 1,319 | 11.7% | ▾ -2.2% |
| Martins Ferry City School District | 1,269 | 11.2% | ▾ -3.1% |
| Download all school district data | |||
Belmont County school district enrollment and trends per most recent NCES reporting data.
Belmont County Housing & Real Estate
Belmont County has a median home value of $143,000 and a median gross rent of $769. 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 Ohio median, while rents come in below the state average. In March 2026, the median listing price was $174,500 and homes spent about 83 days on the market.
Belmont County Housing Mix
Belmont County housing mix: owner, renter and vacant units.
Belmont County Housing Trends
Belmont County median home value and rent trend (last 5 years).
Businesses in Belmont County, OH
Belmont County has 2,614 business listings across 487 categories. The largest categories in Belmont County business listings are Churches & Religious Organizations (105, 4.0%), Gas Stations (52, 2.0%), and Auto Repair (52, 2.0%). The full Belmont County business listings dataset includes names, categories, addresses and contact details where available. Belmont County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Belmont County, OH
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 105 | 4.0% |
| Gas Stations | 52 | 2.0% |
| Auto Repair | 52 | 2.0% |
| Insurance Agencies | 45 | 1.7% |
| Landmark And Historical Building | 40 | 1.5% |
| Pizza Restaurants | 39 | 1.5% |
| Banks & Credit Unions | 34 | 1.3% |
| Contractors | 32 | 1.2% |
| Convenience Stores | 31 | 1.2% |
| Beauty Salons | 31 | 1.2% |
Belmont County Business Listings
| Business | Category | City |
|---|---|---|
| Eagle HealthWorks | Abuse And Addiction Treatment | Bridgeport |
| Crawford Heights | Accommodation | Martins Ferry |
| S B Accounting LLC | Accountant | St Clairsville |
| Hillendale Ball Fields | Active Life | Martins Ferry |
| Lamar Advertising of Wheeling | Advertising Agency | St Clairsville |
| Belmont Mills | Agricultural Service | Belmont |
| Lashley Tractor Sales | Agriculture | St Clairsville |
| Barnesville-Bradfield Airport | Airport | Barnesville |
| Martins Ferry EMS | Ambulance And Ems Services | Martins Ferry |
| Applebee's | American Restaurants | St. Clairsville |
| Download Belmont County business listings | ||
Belmont County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Belmont County Basemaps
Belmont 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 Belmont County Data Package
This page shows a preview of what's included in the Belmont 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 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 Belmont County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.