Franklin County GIS Maps
Franklin County, Illinois, has 37,804 residents and covers 408.9 square miles. The population declined 4.4% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Franklin County is 17055.
West Frankfort is the county's largest population center. Franklin County also includes 16 zip codes, 6 public school districts and 31 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.
Franklin County Trends
- Population
- 37,804▾
- Median Home Value
- $87,700▴
- K-12 Enrollment
- 5,884▾
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.
Franklin 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.
Franklin County Population
Franklin County had 37,804 residents in 2020. That was 4.4% lower than in 2010. Franklin County had 1,214 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 92 people per square mile. Some of the county's most populated postal areas include West Frankfort, Benton and Sesser.
Population Trend in Franklin County IL
Franklin County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Franklin County Zip Codes
Franklin County has 16 zip codes. Some of the county's most populated zip codes include West Frankfort (62896), Benton (62812) and Sesser (62884). West Frankfort is the largest zip by population, with about 11,376 residents or 30% of the county total. Together, the three largest zips account for about 67% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Franklin County IL
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 62896 | West Frankfort | 11,376 | ▾ -9.9% |
| 62812 | Benton | 10,962 | ▾ -2.7% |
| 62884 | Sesser | 2,907 | ▾ -1.1% |
| 62822 | Christopher | 2,745 | ▴ 6.6% |
| 62890 | Thompsonville | 2,631 | ▾ -8.7% |
| Download all zip code data | |||
Franklin County Zip Code populations and trends per most recent census data.
Franklin County Demographics
Franklin County has a median age of 43.4, which makes the county a little older than Illinois overall. About 22.2% of residents are under 18, while 20.8% 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 29.3% of the population, which points to a solid working-age base. About 17.1% of adults have a bachelor's degree or higher, above the statewide figure of 37.2%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Franklin County IL
Median Age
43.4
Under 18
22.2%
Age 65+
20.8%
Bachelor's+
17.1%
Franklin County School Districts
Franklin County is served by 6 public school districts with 5,884 students enrolled in 2024. The largest districts on the county map are Herrin Community Unit 4, Frankfort Community Unit 168 and Christopher Community Unit 99. 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 Franklin County IL
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Herrin Community Unit School District 4 | 2,320 | 39.4% | ▾ -1.6% |
| Frankfort Community Unit School District 168 | 1,517 | 25.8% | ▾ -0.5% |
| Christopher Community Unit School District 99 | 716 | 12.2% | ▴ 0.8% |
| Sesser-Valier Community Unit School District 196 | 548 | 9.3% | ▾ -5% |
| Zeigler-Royalton Community Unit School District 188 | 489 | 8.3% | ▴ 1% |
| Download all school district data | |||
Franklin County school district enrollment and trends per most recent NCES reporting data.
Franklin County Housing & Real Estate
Franklin County has a median home value of $87,700 and a median gross rent of $771. About 75% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Illinois median, while rents come in below the state average. In March 2026, the median listing price was $118,675 and homes spent about 77 days on the market.
Franklin County Housing Mix
Franklin County housing mix: owner, renter and vacant units.
Franklin County Housing Trends
Franklin County median home value and rent trend (last 5 years).
Businesses in Franklin County, IL
Franklin County has 1,536 business listings across 376 categories. The largest categories in Franklin County business listings are Churches & Religious Organizations (93, 6.1%), Auto Repair (42, 2.7%), and Baptist Church (30, 2.0%). The full Franklin County business listings dataset includes names, categories, addresses and contact details where available. Franklin County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Franklin County, IL
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 93 | 6.1% |
| Auto Repair | 42 | 2.7% |
| Baptist Church | 30 | 2.0% |
| Public And Government Association | 24 | 1.6% |
| Campgrounds & RV Parks | 22 | 1.4% |
| Pizza Restaurants | 21 | 1.4% |
| Bars & Nightlife | 21 | 1.4% |
| Insurance Agencies | 20 | 1.3% |
| Convenience Stores | 19 | 1.2% |
| Contractors | 19 | 1.2% |
Franklin County Business Listings
| Business | Category | City |
|---|---|---|
| Martin Accounting & Tax Service | Accountant | Mulkeytown |
| Neal's Whitetail Ranch | Active Life | Ewing |
| Positive Impressions | Advertising Agency | Benton |
| Leedle Houmes Bees | Agricultural Service | Mulkeytown |
| Franklin County Farm Bureau | Agriculture | West City |
| Benton Municipal Airport | Airport | Benton |
| JTs on the Hill | American Restaurants | Zeigler |
| Outbax | Amusement Park | Logan |
| Pickle City Animal Oasis | Animal Rescue Service | Benton |
| Arnett's Country Store | Antique Store | West Frankfort |
| Download Franklin County business listings | ||
Franklin County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Franklin County Basemaps
Franklin 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 Franklin County Data Package
This page shows a preview of what's included in the Franklin 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 Franklin County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.