Washington County GIS Maps
Washington County, Texas, has 35,805 residents across 22,380 parcels and covers 604.2 square miles. The population grew 6.2% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Washington County is 48477.
Brenham is the county's largest population center. Washington County also includes 5 zip codes, 4 public school districts and 15 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
- 35,805▴
- Median Home Value
- $270,100▴
- K-12 Enrollment
- 7,962▴
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 22,380 mapped parcels covering 373,055 acres. The median assessed value is $317,700. The median lot size is 1.99 acres. 6,442 parcels are 10 acres or larger. The records carry 16,794 distinct owner names. About 2% of parcels list an owner mailing address outside Texas. Owner names, mailing addresses, site addresses, assessed values 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 | 22,380 | 100% |
| Owner name | 22,080 | 98.7% |
| Owner mailing address | 22,380 | 100% |
| Site address | 22,380 | 100% |
| Land use code | 22,080 | 98.7% |
| Land use description | 0 | 0% |
| Assessed value | 22,380 | 100% |
| Land value | 22,380 | 100% |
| Improvement value | 22,380 | 100% |
| Acreage | 22,380 | 100% |
| Parcel boundary | 22,380 | 100% |
| Download all Washington County parcels. | ||
Field coverage measured across all Washington County parcel records.
Washington County Population
Washington County had 35,805 residents in 2020. That was 6.2% higher than in 2010. Washington County added 5,432 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 59 people per square mile. Some of the county's most populated postal areas include Brenham, Burton and Chappell Hill.
Population Trend in Washington County TX
Washington County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Washington County Zip Codes
Washington County has 5 zip codes. Some of the county's most populated zip codes include Brenham (77833), Burton (77835) and Chappell Hill (77426). Brenham is the largest zip by population, with about 29,431 residents or 82% of the county total. Together, the three largest zips account for about 95% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Washington County TX
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 77833 | Brenham | 29,431 | ▴ 7.1% |
| 77835 | Burton | 2,463 | ▴ 4.8% |
| 77426 | Chappell Hill | 2,053 | ▾ -2.2% |
| 77880 | Washington | 1,922 | ▴ 2.3% |
| 78932 | Carmine | 897 | ▴ 18.5% |
| 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 40.9, which makes the county a little older than Texas overall. About 21.5% of residents are under 18, while 22.3% 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 25.6% of the population, which points to a solid working-age base. About 31% of adults have a bachelor's degree or higher, above the statewide figure of 33.1%. The county is majority White by population, with Hispanic, Asian, Black and multiracial residents making up a meaningful share of the local mix.
Key Demographics for Washington County TX
Median Age
40.9
Under 18
21.5%
Age 65+
22.3%
Bachelor's+
31%
Washington County School Districts
Washington County is served by 4 public school districts with 7,962 students enrolled in 2024. The largest districts on the county map are Brenham Independent, Giddings Independent and Burton Independent. Those three districts account for about 93% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, based on district totals from 2017 to 2024.
Largest School Districts by Enrollment in Washington County TX
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Brenham Independent School District | 4,872 | 61.2% | ▴ 0.1% |
| Giddings Independent School District | 1,900 | 23.9% | ▴ 0.4% |
| Burton Independent School District | 623 | 7.8% | ▴ 6% |
| Somerville Independent School District | 567 | 7.1% | ▴ 5.8% |
| 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 $270,100 and a median gross rent of $1,091. About 73% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run above the Texas median, while rents come in below the state average. In March 2026, the median listing price was $389,974 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, TX
Washington County has 2,081 business listings across 485 categories. The largest categories in Washington County business listings are Churches & Religious Organizations (68, 3.3%), Gas Stations (40, 1.9%), and Contractors (38, 1.8%). 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, TX
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 68 | 3.3% |
| Gas Stations | 40 | 1.9% |
| Contractors | 38 | 1.8% |
| Real Estate Agents | 36 | 1.7% |
| Landmark And Historical Building | 34 | 1.6% |
| Bed And Breakfast | 31 | 1.5% |
| Convenience Stores | 27 | 1.3% |
| Baptist Church | 25 | 1.2% |
| Restaurants | 24 | 1.2% |
| Hotels | 23 | 1.1% |
Washington County Business Listings
| Business | Category | City |
|---|---|---|
| Brazos Valley Men's Rehab | Abuse And Addiction Treatment | Brenham |
| Rocky Creek RV Rental | Accommodation | Brenham |
| Seidel Schroeder | Accountant | Brenham |
| Watermill Farm | Active Life | Burton |
| Acupuncture Clinic | Acupuncture | Brenham |
| I-Net Spin | Advertising Agency | Brenham |
| Washington County Extension | Agricultural Cooperatives | Brenham |
| Krenek's Tractor Repair | Agricultural Service | Brenham |
| Diamond L Feed | Agriculture | Brenham |
| HRD Aero Systems Inc | Aircraft Parts And Supplies | Burton |
| 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.
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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.