Dallam County GIS Maps
Dallam County, Texas, has 7,115 residents across 5,933 parcels and covers 1,503.1 square miles. The population grew 6.1% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Dallam County is 48111.
Texline is the county's largest population center. Dallam County also includes 3 zip codes, 3 public school districts and 8 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.
Dallam County Trends
- Population
- 7,115▴
- Median Home Value
- $140,500▴
- K-12 Enrollment
- 2,598▴
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.
Dallam 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.
Dallam County Parcels
Dallam County has 5,933 mapped parcels covering 950,568 acres. The median assessed value is $132,240. The median lot size is 1.47 acres. 2,471 parcels are 10 acres or larger. The records carry 2,698 distinct owner names. About 10% 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 Dallam County Parcel viewer here.
Dallam County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 5,933 | 100% |
| Owner name | 5,900 | 99.4% |
| Owner mailing address | 5,933 | 100% |
| Site address | 5,933 | 100% |
| Land use code | 5,900 | 99.4% |
| Land use description | 0 | 0% |
| Assessed value | 5,933 | 100% |
| Land value | 5,933 | 100% |
| Improvement value | 5,933 | 100% |
| Acreage | 5,933 | 100% |
| Parcel boundary | 5,933 | 100% |
| Download all Dallam County parcels. | ||
Field coverage measured across all Dallam County parcel records.
Dallam County Population
Dallam County had 7,115 residents in 2020. That was 6.1% higher than in 2010. Dallam County added 893 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 5 people per square mile. Some of the county's most populated postal areas include Dalhart, Texline and 79051.
Population Trend in Dallam County TX
Dallam County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Dallam County Zip Codes
Dallam County has 3 zip codes. Some of the county's most populated zip codes include Dalhart (79022), Texline (79087) and 79051 (79051). Dalhart is the largest zip by population, with about 10,835 residents or 152% of the county total. Together, the three largest zips account for about 163% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Dallam County TX
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 79022 | Dalhart | 10,835 | ▴ 0.9% |
| 79087 | Texline | 720 | ▾ -4.1% |
| 79051 | 79051 | 22 | ▾ -24.1% |
| Download all zip code data | |||
Dallam County Zip Code populations and trends per most recent census data.
Dallam County Demographics
Dallam County has a median age of 30.4, which makes the county a little younger than Texas overall. About 32.6% of residents are under 18, while 9.6% 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 35.9% 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 33.1%. The county has a more diverse population mix, with no single race or ethnicity accounting for all of the local story.
Key Demographics for Dallam County TX
Median Age
30.4
Under 18
32.6%
Age 65+
9.6%
Bachelor's+
15.7%
Dallam County School Districts
Dallam County is served by 3 public school districts with 2,598 students enrolled in 2024. The largest districts on the county map are Dalhart Independent, Stratford Independent and Texline Independent. Those three districts account for about 100% 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 Dallam County TX
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Dalhart Independent School District | 1,846 | 71.1% | ▴ 3.2% |
| Stratford Independent School District | 527 | 20.3% | ▾ -1.3% |
| Texline Independent School District | 225 | 8.7% | ▴ 3.7% |
| Download all school district data | |||
Dallam County school district enrollment and trends per most recent NCES reporting data.
Dallam County Housing & Real Estate
Dallam County has a median home value of $140,500 and a median gross rent of $1,074. About 68% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Texas median, while rents come in below the state average. In March 2026, the median listing price was $171,500 and homes spent about 87 days on the market.
Dallam County Housing Mix
Dallam County housing mix: owner, renter and vacant units.
Dallam County Housing Trends
Dallam County median home value and rent trend (last 5 years).
Businesses in Dallam County, TX
Dallam County has 405 business listings across 175 categories. The largest categories in Dallam County business listings are Gas Stations (14, 3.5%), Churches & Religious Organizations (13, 3.2%), and Auto Repair (11, 2.7%). The full Dallam County business listings dataset includes names, categories, addresses and contact details where available. Dallam County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Dallam County, TX
| Category | Businesses | Share |
|---|---|---|
| Gas Stations | 14 | 3.5% |
| Churches & Religious Organizations | 13 | 3.2% |
| Auto Repair | 11 | 2.7% |
| Mexican Restaurants | 10 | 2.5% |
| Insurance Agencies | 10 | 2.5% |
| Farm | 9 | 2.2% |
| Convenience Stores | 9 | 2.2% |
| Fast Food | 8 | 2.0% |
| Motels | 8 | 2.0% |
| Hotels | 7 | 1.7% |
Dallam County Business Listings
| Business | Category | City |
|---|---|---|
| Stockmen's Feed Bunk | Agricultural Service | Dalhart |
| Western Equipment | Agriculture | Dalhart |
| Conlen Airport | Airport | Dalhart |
| Maria's Country Kitchen | American Restaurants | Texline |
| St James Episcopal Church | Anglican Church | Dalhart |
| Dalhart Animal Control and Shelter | Animal Shelters | Dalhart |
| Laurel Antiques and More | Antique Store | Dalhart |
| Love's Appliance | Appliance Store | Dalhart |
| Nouveau Ink | Arts And Entertainment | Dalhart |
| LibertyX Bitcoin ATM | ATMs | Dalhart |
| Download Dallam County business listings | ||
Dallam County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Dallam County Basemaps
Dallam 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 Dallam County Data Package
This page shows a preview of what's included in the Dallam 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 Dallam County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.