El Castillo Texas Map
Explore El Castillo, Texas, with this interactive street and satellite map.
This page also offers TOPO MAPS — the official USGS topographic sheets — plus USGS aerial imagery, a labelled USNG grid overlay, a distance and bearing tool, and a GPS grid-reference readout. See How to Use This Map below.
Interactive Map of El Castillo, Texas
How to Use This El Castillo, Texas Map
This interactive map shows the street layout and satellite imagery for El Castillo, Texas. Use the Map and Satellite buttons above to switch between street map and aerial imagery views. Use the + and − buttons to zoom in or out, or scroll your mouse wheel while holding the Control key to zoom. On a touchscreen, use a two-finger pinch gesture. Drag the map to pan to any area of Texas or beyond.
Click ⛶ Fullscreen to expand the map to fill your screen. To return to the normal page view, press the Escape key, click the ✕ Exit Fullscreen button that appears above the map, or on a mobile device tap the back button (Android) or the close icon (iOS).
TOPO MAPS — NEW. Click the green 🔍 Search Maps button below the map to open a second map with a Base map row offering three choices. OSM is the standard OpenStreetMap street map. Topo shows the official USGS topographic maps from The National Map — contours, hydrography, land cover and shaded relief, the same mapping used for hiking, hunting and back-country navigation in the Adirondacks, the Catskills and the Finger Lakes. Imagery shows USGS aerial photography, mostly 1-metre NAIP. The search box finds any US town, county or landmark by name, so you are not limited to El Castillo.
Reading the map like a paper quad. Click Grid to overlay the U.S. National Grid (USNG), labelled along the edges exactly as a printed topographic sheet is — at normal zoom the squares are one kilometre across, so you can read a six-figure grid reference by eye and judge distance directly off the map. Click Measure, then tap two points, to get the distance between them together with the grid bearing in degrees and mils, the true bearing, and the magnetic bearing to set on a compass.
Click 📍 My position to take a single GPS reading from your device. It marks where you are and reports your position as a USNG grid reference as well as plain latitude and longitude — USNG being the format FEMA and US search and rescue teams work from — with a Copy position button so you can paste it straight into a text message. It takes one reading and stops, rather than tracking continuously, to conserve your battery. Note that map tiles need cell coverage, but a GPS reading does not — your coordinates stay correct even where the map itself cannot load.
| City | El Castillo |
| State | Texas (TX) |
| County | Starr County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 26.3348 |
| Longitude | -98.6391 |
| Population | 219 |
| Density | 3019.9 /km² |
| Incorporated | N/A |
| ZIP Code | 78582 |
| Area Code | 830 |
| County Seat | Rio Grande City |
| School District | Rio Grande City Grulla Independent School District |
About El Castillo, Texas
El Castillo is a locality in Starr County, Texas, United States. It is a small community with a population of 219. The population density is 3019.9 people per km². El Castillo is located at 26.3348°N, 98.6391°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 78582.El Castillo endures as a sun-bleached outpost where the horizon stretches across a vast, scrub-dusted expanse of southern plains. It lies 11.6 miles east-southeast of Rio Grande City, TX (from Rio Grande City, TX: bearing 105°T), and is situated 6.1 miles northwest of Sullivan City. The air here holds a dry, heat-thickened stillness that seems to suspend the very movement of the grass, while the distant, hazy silhouette of Gongora Hill provides the only interruption to an otherwise unbroken line of sky. Just two miles to the east, the brush thickens toward the Lower Rio Grande Valley National Wildlife Refuge, where the earth gives way to the dense, tangled verdure of native habitat. Salado Creek winds through the low-lying reaches nearby, its intermittent flow carving a stubborn, shadowed path through the parched soil that dictates the local geography far more than any human hand.
Life in El Castillo pulses with the quiet, deliberate rhythm of a region defined by its reliance on the land and the endurance of its people. The local economy remains anchored to the patterns of ranching and agriculture, traditions that have shaped the settlement's character since its earliest days of frontier expansion. Residents often look toward the quiet waters of La Joya Lake, ten miles to the north, as a point of respite from the relentless intensity of the midday sun. Over the decades, the cultural identity of El Castillo has deepened into a unique blend of border-country heritage, where the Spanish language and Tex-Mex traditions permeate the everyday conversations of those who traverse its quiet, dusty streets.
Nearby Outdoor Places
- Lower Rio Grande Valley National Wildlife Refuge (National Wildlife Refuge) — 2.0 mi, 214° SW · 277k acres
- Las Palomas Wildlife Management Area (State Conservation Area) — 5.7 mi, 188° S
- Sullivan City Memorial Park (Local Park) — 6.6 mi, 133° SE
- Los Ebanos Park (Local Recreation) — 7.7 mi, 141° SE
- Havana (Monument) — 10.1 mi, 126° SE
- Fort Ringgold County Park (Local Park) — 10.8 mi, 287° W
- Old Ringgold Barracks Hospital (Monument) — 10.9 mi, 285° W
- Fort Ringgold, C.S.A. (Monument) — 11.0 mi, 286° W
- Javelina Ranch (Park) — 12.2 mi, 088° E
- Las Estrellas Preserve (Park) — 17.0 mi, 304° NW
- Bentsen - Rio Grande Valley State Park (State Park) — 18.3 mi, 124° SE
- Hawk observation deck (Attraction) — 19.7 mi, 125° SE
- Shary Municipal Golf Course (Local Recreation) — 21.0 mi, 111° E
- Border Theater (Theatre) — 21.1 mi, 113° SE
- Sharyland Rattlers Stadium (Stadium) — 23.7 mi, 111° E
- R&N Thrift (Attraction) — 25.7 mi, 110° E
- Roma Historical Museum (Museum) — 27.4 mi, 308° NW
- Topgolf (Attraction) — 28.8 mi, 109° E
- Hidalgo County Historical Museum (Museum) — 29.6 mi, 094° E
- Plaza Sports Center (Stadium) — 30.1 mi, 103° E
- Falcon State Park (State Park) — 34.3 mi, 299° NW
- Santa Ana National Wildlife Refuge (National Wildlife Refuge) — 34.3 mi, 121° SE · 4,218 acres
- The History of Mexico & Mankind (Public Artwork) — 59.1 mi, 099° E
- La Paz Museum (Museum) — 71.8 mi, 324° NW
- Stillman House Museum (Museum) — 77.0 mi, 113° SE
- Brownsville Heritage Museum (Museum) — 77.0 mi, 113° SE
- Welcome to Texas Sign (Attraction) — 78.3 mi, 113° SE
Latest News: El Castillo
Loading news…
World News
Loading news-world…
More World News
Loading news-world…
About This El Castillo Map Page
This page provides an embedded street and satellite map of El Castillo, Texas. Coordinates: 26.3348, -98.6391. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.
Detailed location data for El Castillo includes the ZIP code (78582), telephone area code (830), county seat of Starr County (Rio Grande City), and school district assignment (Rio Grande City Grulla Independent School District).
Search Maps opens a second, independent map. It searches OpenStreetMap for any US town, county or landmark by name; offers USGS topographic maps and USGS aerial imagery as base layers; overlays a labelled U.S. National Grid (USNG) so the map can be read like a printed topographic quad; measures distance and grid, true and magnetic bearings between any two points; and takes a single GPS fix reporting your position as a USNG grid reference and as latitude and longitude. Map tiles require cell coverage, but a GPS position does not, so the coordinates remain correct even where the map cannot load.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.
| Page generated | September 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Map layers | Google Maps; © OpenStreetMap contributors; USGS The National Map topographic and aerial imagery (public domain); magnetic declination from NOAA NCEI (World Magnetic Model) |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |
