The Zapata County Texas map covers a South Texas border county with Zapata, San Ygnacio, Falcon Lake Estates, the Rio Grande, Falcon International Reservoir, ranch land, oil and gas areas, and dense brush country.
The U.S. Census Bureau estimated 13,753 residents on July 1, 2025. Zapata is the unincorporated county seat, and much of the population lives near Zapata and Falcon Lake.
Table of Contents
Map Coverage and Three A3 Versions
The download includes color, black-and-white, and outline maps. The labeled versions locate selected communities, the Rio Grande, Falcon Lake, ranch land, and broad energy-production areas.
This Zapata County Texas map focuses on the county boundary and its relationship to Webb, Jim Hogg, and Starr counties and the international boundary with Mexico. It is not an international-boundary survey, navigation chart, lake-depth map, security map, pipeline map, or parcel survey.
| Item | Verified Detail |
|---|---|
| Location | South Texas Rio Grande border region |
| County Seat | Zapata |
| 2025 Population Estimate | 13,753 |
| Major Communities | Zapata, San Ygnacio, and Falcon Lake Estates |
| Other Communities | Falcon Mesa, Siesta Shores, and Las Palmas |
| Natural Features | Rio Grande, Falcon International Reservoir, and South Texas brush country |
| Regional Character | Border communities, ranching, oil and gas, fishing, boating, and reservoir tourism |
Zapata and County Government
Zapata is the unincorporated county seat and contains the courthouse, principal county offices, schools, healthcare, and local commerce.
U.S. Route 83 follows the Rio Grande corridor and connects the community with Webb and Starr counties.
San Ygnacio and the Northern Border
San Ygnacio is a historic Rio Grande community in northern Zapata County with older stone buildings and a long border-ranching history.
Border access, river travel, and private-property entry require current federal, state, county, and landowner guidance.
Falcon International Reservoir and Fishing
Falcon International Reservoir is a United States-Mexico border reservoir formed by damming the Rio Grande. Texas Parks and Wildlife describes it as an approximately 84,000-acre international reservoir.
The lake is known for largemouth and white bass, catfish, and stripers. Current water level, ramps, international-water rules, and weather should be checked before boating or fishing.
Falcon Lake Estates and Shore Communities
Falcon Lake Estates, Falcon Mesa, and Siesta Shores are residential and recreation communities along the eastern side of the reservoir.
Shoreline position and usable boat access can change substantially as reservoir levels rise or fall.
Ranches, Brush Country, and Energy Activity
Inland Zapata County contains South Texas thornscrub, ranches, hunting land, and oil and gas production areas.
Ranch roads, pipelines, wells, and private-property boundaries require current official and industry records.
Color Map
The color version separates Zapata County from neighboring areas and helps show Zapata, San Ygnacio, Falcon Lake communities, the Rio Grande, reservoir, and brush country.

Black-and-White Map
The black-and-white map retains the county outline and selected place names for grayscale printing.

Outline Map
The outline version contains boundary lines without labels or fills, allowing custom notes and place names.

Download the Zapata County Maps
The Zapata County Texas map download contains three A3 JPG versions. Current official records should be used for international-boundary, navigation, water-level, security, oilfield, pipeline, legal-boundary, and property decisions.
County Map File Information
This download includes color, black-and-white, and outline maps.
- Included Versions: Color, Black and White, Outline
- File Type: JPG
- Page Size: A3
Frequently Asked Questions
What is the county seat of Zapata County?
Zapata, an unincorporated community, is the county seat.
Which communities are the main population centers?
Zapata, San Ygnacio, and Falcon Lake Estates are major communities.
Which natural features are best known?
The Rio Grande, Falcon International Reservoir, and South Texas brush country are the best-known features.
References
U.S. Census Bureau QuickFacts supplied the 2025 population estimate.
Zapata County’s official website supplied county-government and regional information.
Texas Parks and Wildlife’s Falcon Reservoir guide supplied reservoir and fishing information.
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Green Map creates custom-edited map images using open geographic data sources such as geoBoundaries, Natural Earth, OpenStreetMap, and government open data.
These maps are edited visual materials, not raw data files, and are provided for education, documents, presentations, and graphic reference.





