Johnson County GIS Maps
Johnson County, Tennessee, has 17,948 residents across 14,141 parcels and covers 298.4 square miles. The population declined 1.6% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Johnson County is 47091.
Mountain City is the county's largest population center. Johnson County also includes 5 zip codes, 1 public school district and 20 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.
Johnson County Trends
- Population
- 17,948▾
- Median Home Value
- $175,500▴
- K-12 Enrollment
- 4,952▴
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.
Johnson 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.
Johnson County Parcels
Johnson County has 14,141 mapped parcels covering 190,622 acres. The median lot size is 2.25 acres. 1,916 parcels are 10 acres or larger. The records carry 11,254 distinct owner names. Owner names, site addresses and lot sizes are on nearly every parcel. Browse the interactive Johnson County Parcel viewer here.
Johnson County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 14,141 | 100% |
| Owner name | 14,036 | 99.3% |
| Owner mailing address | 0 | 0% |
| Site address | 14,092 | 99.7% |
| Land use code | 0 | 0% |
| Land use description | 0 | 0% |
| Assessed value | 0 | 0% |
| Land value | 0 | 0% |
| Improvement value | 0 | 0% |
| Acreage | 14,141 | 100% |
| Parcel boundary | 14,141 | 100% |
| Download all Johnson County parcels. | ||
Field coverage measured across all Johnson County parcel records.
Johnson County Population
Johnson County had 17,948 residents in 2020. That was 1.6% lower than in 2010. Johnson County added 449 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 60 people per square mile. Some of the county's most populated postal areas include Mountain City, Butler and Shady Valley.
Population Trend in Johnson County TN
Johnson County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Johnson County Zip Codes
Johnson County has 5 zip codes. Some of the county's most populated zip codes include Mountain City (37683), Butler (37640) and Shady Valley (37688). Mountain City is the largest zip by population, with about 12,867 residents or 72% of the county total. Together, the three largest zips account for about 97% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Johnson County TN
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 37683 | Mountain City | 12,867 | ▾ -1.2% |
| 37640 | Butler | 3,664 | ▾ -2.1% |
| 37688 | Shady Valley | 963 | ▾ -5.4% |
| 37691 | Trade | 851 | ▾ -4.8% |
| 37680 | Mountain City | 661 | ▾ -13.7% |
| Download all zip code data | |||
Johnson County Zip Code populations and trends per most recent census data.
Johnson County Demographics
Johnson County has a median age of 46.4, which makes the county a little older than Tennessee overall. About 16.8% of residents are under 18, while 23.3% 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 30.7% of the population, which points to a solid working-age base. About 15.7% of adults have a bachelor's degree or higher, above the statewide figure of 30.4%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Johnson County TN
Median Age
46.4
Under 18
16.8%
Age 65+
23.3%
Bachelor's+
15.7%
Johnson County School Districts
Johnson County is served by 1 public school district with 4,952 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 grown modestly since 2017 across the districts shown on the county map.
Largest School Districts by Enrollment in Johnson County TN
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Johnson County School District | 4,952 | 100% | ▴ 3.4% |
| Download all school district data | |||
Johnson County school district enrollment and trends per most recent NCES reporting data.
Johnson County Housing & Real Estate
Johnson County has a median home value of $175,500 and a median gross rent of $639. About 79% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Tennessee median, while rents come in below the state average. In March 2026, the median listing price was $399,900 and homes spent about 144 days on the market.
Johnson County Housing Mix
Johnson County housing mix: owner, renter and vacant units.
Johnson County Housing Trends
Johnson County median home value and rent trend (last 5 years).
Businesses in Johnson County, TN
Johnson County has 584 business listings across 235 categories. The largest categories in Johnson County business listings are Churches & Religious Organizations (32, 5.5%), Baptist Church (19, 3.3%), and Campgrounds & RV Parks (14, 2.4%). The full Johnson County business listings dataset includes names, categories, addresses and contact details where available. Johnson County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Johnson County, TN
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 32 | 5.5% |
| Baptist Church | 19 | 3.3% |
| Campgrounds & RV Parks | 14 | 2.4% |
| Gas Stations | 12 | 2.1% |
| Restaurants | 11 | 1.9% |
| Pizza Restaurants | 11 | 1.9% |
| Convenience Stores | 11 | 1.9% |
| Discount Store | 10 | 1.7% |
| Fire Departments | 9 | 1.5% |
| Farm | 9 | 1.5% |
Johnson County Business Listings
| Business | Category | City |
|---|---|---|
| Leap Frog Lodge | Accommodation | Butler |
| Gentry Creek Falls | Active Life | Laurel Bloomery |
| Shady Street Market | Advertising Agency | Mountain City |
| Tri-State Growers | Agricultural Cooperatives | Mountain City |
| McQueen Farm & Equipment | Agricultural Service | Shady Valley |
| Pugh's Farm | Agriculture | Mountain City |
| Johnson County Airport | Airport | Mountain City |
| JJ's Cafe | American Restaurants | Butler |
| The Race Place | Amusement Park | Mountain City |
| Rescue DOG & End of Life Sanctuary | Animal Rescue Service | Mountain City |
| Download Johnson County business listings | ||
Johnson County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Johnson County Basemaps
Johnson 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 Johnson County Data Package
This page shows a preview of what's included in the Johnson 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 Johnson County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.