South Texas · 1,133 sq mi

Frio County, Texas Map

A precise, authentic map of Frio County built from U.S. Census Bureau TIGER boundary data. The map below auto-fits to the county and its 5 bordering counties, so geography stays accurate whether the county is tiny (<200 sq mi) or vast (>5,000 sq mi).

Frio County, Texas — county boundary mapFrioZavalaDimmitLa SalleMedinaAtascosa
Source: U.S. Census TIGER · Frio County, TX
Show schematic boundary map (with neighbors)
Frio County, Texas — boundary map with neighboring countiesFrioZavalaDimmitLa SalleMedinaAtascosa
Source: U.S. Census TIGER · Frio County, TX

About this map

This map renders Frio County's exact administrative boundary as defined by the U.S. Census Bureau's TIGER/Line cartographic files — the same source used by federal agencies, state GIS portals, and academic researchers. The county occupies 1,133 square miles and shares borders with 5 neighboring counties.

The map is fully responsive — it scales cleanly from a phone screen to a 4K monitor without distortion, and prints cleanly on letter-size paper. Vector geometry means borders stay sharp at any zoom level.

Frio County facts

County seat
Pearsall
Region
South Texas
Population
18,823
Area
1,133 sq mi
Established
1858
FIPS
48163

Reading the Frio County map

The outline on this map is Frio County's legal boundary as published in the U.S. Census Bureau's TIGER/Line files. At 1,133 square miles, the county is roughly the size of a square 34 miles on each side — large enough that crossing it by car can take well over an hour. Straight survey lines on the map usually mark boundaries drawn by the legislature, while winding edges follow rivers and creeks.

The red marker shows Pearsall, the county seat, and the highlighted shapes in the schematic view are the bordering counties. Use the layer switcher to change between street, satellite and terrain backgrounds: satellite is best for seeing farmland and development patterns, while terrain shows hills, valleys and river corridors.

What surrounds Frio County

Moving around the compass, Frio County borders Zavala to the west; Dimmit to the southwest; La Salle to the south; Medina to the north; Atascosa to the east.

For travel planning, the nearest large cities are San Antonio (~53 mi), Laredo (~97 mi), Austin (~127 mi). Distances are straight-line from the county's center; driving distances are usually 15–30% longer depending on the road network.

Landscape of the South Texas

South Texas covers the brush country, the Rio Grande Valley and the ranchlands south of San Antonio. Its culture is strongly shaped by its Tejano heritage and its ties to Mexico, and its economy blends citrus and vegetable farming, ranching, trade and energy.

How to use or print this map

To keep a copy, use the Download PDF button below the map: it saves a letter-size PDF of Frio County built from U.S. Census Bureau 2023 boundary files, showing neighboring counties and incorporated places. The Official TxDOT road map button downloads the Texas Department of Transportation county road mapbook. The Print map button opens a print-ready layout for paper printing. For a statewide view showing all 254 counties with their seats, use our free Texas map with counties and cities PDF.

Teachers often pair this map with the county's neighbors to practice cardinal directions, while genealogists use it to identify which neighboring courthouses may hold older records — many Texas counties were carved out of larger ones, and Frio County itself was formed from Atascosa County, Bexar County and Uvalde County.

More about Frio County: full county profile · population & density · statewide PDF map