Explore Duval County, Texas with this interactive street and satellite map. Browse all 5 cities and towns in Duval County below.
| County | Duval |
| State | Texas (TX) |
| County Seat | San Diego |
| Country | United States of America |
| Latitude | 27.616807 |
| Longitude | -98.429678 |
| Cities & Towns | 5 |
| Area Codes | 830 |
Duval County occupies a stretch of the South Texas Plains where the earth seems to exhale a persistent, dry heat, flattening the horizon into a vast, shimmering expanse of brush country. This is a landscape of mesquite and prickly pear, where the soil shifts from sandy loam to darker, stubborn clays that cling to the boots of any traveler crossing its wide, open ranges. Seasonal creeks cut shallow, erratic scars through the scrub, their beds dry for much of the year until sudden, violent storms transform them into fleeting, muddy arteries. The light here has a peculiar, brittle quality, turning the afternoon sky into a pale, translucent blue that seems to bleach the color from the parched grasses, leaving the land under a relentless, searching gaze that leaves no shadow unexamined.
Duval County emerged from the broader expanse of the borderlands during the late nineteenth century, shaped by the confluence of ranching traditions and the persistent migration of families moving north from the Rio Grande. Its administrative life centered on a town that grew from the necessity of trade and the arrival of the railroad, serving as a hub for the sprawling cattle operations that defined the region’s early ambition. The architecture of these early settlements remains modest and utilitarian, characterized by low-slung structures that favor shade and cross-ventilation against the suffocating summer intensity. Even now, the air in these quiet corridors carries a faint, lingering scent of dust and diesel, a testament to a time when the county’s identity was forged in the isolation of the brush and the hard, practical labor of fencing off the wilderness.
Economic life in this region has long been dictated by the rhythms of the earth, alternating between the cycles of livestock grazing and the extraction of mineral wealth from deep beneath the surface. Pump jacks operate with a rhythmic, mechanical patience, their iron beams nodding against the skyline like silent sentinels in a field of thorns. The culture remains deeply tethered to a bilingual heritage, where the cadence of daily conversation flows between two languages as naturally as the shifting winds. There is a profound stillness in the evenings, when the temperature finally breaks and the horizon glows with a bruised, violet intensity, revealing the resilience of a place that asks for little and offers only what can be coaxed from the scrub. It is a landscape that demands a certain sturdiness of spirit, favoring those who understand that the true character of the territory is found not in grand gestures, but in the quiet endurance of a life lived close to the grit and the sun.
This page provides an interactive map of Duval County, Texas alongside links to detailed street maps for 5 cities and towns. The county seat is San Diego. Each city and town map page includes live weather, local news and precise GPS coordinates.
The Search Maps button below the county map opens USGS topographic maps and aerial imagery as base layers, with a labelled U.S. National Grid (USNG) overlay, a distance and bearing tool, and a single-fix GPS readout giving your USNG grid reference and latitude and longitude.
Location data is sourced from the USGS GNIS database and verified by coordinates, not name matching alone.
| Page generated | September 2026 |
| Location data | USGS GNIS database; coordinates matched to 2020 US Census records |