Washington County GIS Maps
Washington County, Tennessee, has 133,001 residents across 60,895 parcels and covers 326.5 square miles. The population grew 8.1% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Washington County is 47179.
Johnson City is the county's largest population center. Washington County also includes 8 zip codes, 2 public school districts and 27 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.
Washington County Trends
- Population
- 133,001▴
- Median Home Value
- $231,700▴
- K-12 Enrollment
- 15,787▾
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.
Washington 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.
Washington County Parcels
Washington County has 60,895 mapped parcels covering 200,858 acres. The median lot size is 2.55 acres. 2,324 parcels are 10 acres or larger. The records carry 48,930 distinct owner names. Owner names, site addresses and lot sizes are on nearly every parcel. Browse the interactive Washington County Parcel viewer here.
Washington County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 60,895 | 100% |
| Owner name | 60,860 | 99.9% |
| Owner mailing address | 0 | 0% |
| Site address | 60,894 | 99.9% |
| Land use code | 0 | 0% |
| Land use description | 0 | 0% |
| Assessed value | 0 | 0% |
| Land value | 0 | 0% |
| Improvement value | 0 | 0% |
| Acreage | 60,895 | 100% |
| Parcel boundary | 60,895 | 100% |
| Download all Washington County parcels. | ||
Field coverage measured across all Washington County parcel records.
Washington County Population
Washington County had 133,001 residents in 2020. That was 8.1% higher than in 2010. Washington County added 25,803 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 407 people per square mile. Some of the county's most populated postal areas include Johnson City, Johnson City and Jonesborough.
Population Trend in Washington County TN
Washington County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Washington County Zip Codes
Washington County has 8 zip codes. Some of the county's most populated zip codes include Johnson City (37601), Johnson City (37604) and Jonesborough (37659). Johnson City is the largest zip by population, with about 37,079 residents or 28% of the county total. Together, the three largest zips account for about 78% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Washington County TN
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 37601 | Johnson City | 37,079 | ▴ 2.5% |
| 37604 | Johnson City | 37,025 | ▴ 8.1% |
| 37659 | Jonesborough | 29,313 | ▴ 6.3% |
| 37615 | Johnson City | 22,151 | ▴ 13.2% |
| 37681 | Limestone | 6,234 | ▴ 1.8% |
| Download all zip code data | |||
Washington County Zip Code populations and trends per most recent census data.
Washington County Demographics
Washington County has a median age of 40.3, which makes the county a little older than Tennessee overall. About 18.8% of residents are under 18, while 18.6% 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 30.4% of the population, which points to a solid working-age base. About 33.5% 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 Washington County TN
Median Age
40.3
Under 18
18.8%
Age 65+
18.6%
Bachelor's+
33.5%
Washington County School Districts
Washington County is served by 2 public school districts with 15,787 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 Washington County TN
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Washington County School District | 7,969 | 50.5% | ▾ -1.7% |
| Johnson City School District | 7,818 | 49.5% | ▾ -1.5% |
| Download all school district data | |||
Washington County school district enrollment and trends per most recent NCES reporting data.
Washington County Housing & Real Estate
Washington County has a median home value of $231,700 and a median gross rent of $951. About 64% 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 $434,975 and homes spent about 62 days on the market.
Washington County Housing Mix
Washington County housing mix: owner, renter and vacant units.
Washington County Housing Trends
Washington County median home value and rent trend (last 5 years).
Businesses in Washington County, TN
Washington County has 6,053 business listings across 745 categories. The largest categories in Washington County business listings are Churches & Religious Organizations (204, 3.4%), Real Estate Agents (139, 2.3%), and ATMs (89, 1.5%). The full Washington County business listings dataset includes names, categories, addresses and contact details where available. Washington County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Washington County, TN
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 204 | 3.4% |
| Real Estate Agents | 139 | 2.3% |
| ATMs | 89 | 1.5% |
| Gas Stations | 80 | 1.3% |
| Beauty Salons | 79 | 1.3% |
| Auto Repair | 79 | 1.3% |
| Hair Salons | 73 | 1.2% |
| Landmark And Historical Building | 72 | 1.2% |
| Baptist Church | 72 | 1.2% |
| Insurance Agencies | 70 | 1.2% |
Washington County Business Listings
| Business | Category | City |
|---|---|---|
| NHC HealthCare | Abuse And Addiction Treatment | Johnson City |
| ETSU Bookstore | Academic Bookstore | Johnson City |
| WoodSpring Suites | Accommodation | Johnson City |
| Cash Flow Bookkeeping and Accounting | Accountant | Johnson City |
| Ridgeview Softball Complex | Active Life | Johnson City |
| Appalachian Acupuncture | Acupuncture | Johnson City |
| Addiction Rehab Jonesboro | Addiction Rehabilitation Center | Jonesboro |
| Bethany Christian Services | Adoption Services | Johnson City |
| Grafik Touch Advertising Agency | Advertising Agency | Johnson City |
| Appalachian Producers Cooperative | Agricultural Cooperatives | Telford |
| Download Washington County business listings | ||
Washington County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Washington County Basemaps
Washington 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 Washington County Data Package
This page shows a preview of what's included in the Washington 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 Tennessee — 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 Washington County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.