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Port Alto Texas Map

Explore Port Alto, 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 Port Alto, Texas

How to Use This Port Alto, Texas Map

This interactive map shows the street layout and satellite imagery for Port Alto, 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 Port Alto.

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	Port Alto
State	Texas (TX)
County	Calhoun County
Country	United States of America
Timezone	Central Time (America/Chicago)

Latitude	28.659994
Longitude	-96.413306
Population	480
Density	18.0 /km²
Incorporated	N/A
ZIP Code	77979
Area Code	409
County Seat	Port Lavaca

🌦 Goto Port Alto Weather Page: Port Alto, Texas — Weather Warnings, Forecast, Radar, Satellite & Current Conditions

About Port Alto, Texas

Port Alto is a locality in Calhoun County, Texas, United States. It is a small community with a population of 480. The population density is 18.0 people per km². Port Alto is located at 28.6600°N, 96.4133°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 77979.

Port Alto sits at the edge of the world where the solid earth dissolves into the saline breath of the Gulf. It lies 13.3 miles east-northeast of Port Lavaca, TX (from Port Lavaca, TX: bearing 76°T), and is situated 12.3 miles west-southwest of Palacios. Salt-crusted grasses sway in a perennial breeze, masking the flat, featureless horizon that stretches toward the shimmering expanse of Carancahua Bay. The air here holds a heavy, humid weight, carrying the scent of drying mud and brine that clings to the skin long after the sun dips low. Inland, the terrain drains toward the quiet depression of Fivemile Draw, while the distant, singular rise of Pepper Hill offers the only interruption to the relentless, low-lying prairie. A profound stillness settles over the landscape at dusk, turning the sky into a bruised palette of violet and copper that reflects perfectly upon the mirror-like surfaces of the surrounding wetlands.

History in Port Alto remains etched in the quiet endurance of those who harvest the bounty of the brackish tide. The local economy persists through a delicate dance with the water, where the rhythms of the fishing trade dictate the pace of life more than any mechanical clock. Nearby, the quiet expanse of Hterious Park serves as a sanctuary for migratory birds that navigate the flyways above the marshes, while the brackish currents of Keller Creek feed the intricate veins of the coastal ecosystem. Though the industrial hum of the modern world lingers at the periphery, daily life here maintains a measured, deliberate quality, focused on the maintenance of boats and the quiet observation of the tides. Far from the reach of the city, the residents of Port Alto find a particular solace in the constancy of the water, which remains the primary architect of their modest, resilient existence.

Nearby Outdoor Places

Olivia Cemetery (Monument) — 2.4 mi, 250° W
Hterious Park (Local Park) — 3.0 mi, 239° SW
Miramar Pointe (Conservation Area) — 5.3 mi, 203° SW
Perry R. Bass Marine Fisheries Research Center (Recreation Easement) — 5.4 mi, 099° E
Cox's Point (Monument) — 9.5 mi, 274° W
Magic Ridge (Conservation Area) — 10.1 mi, 221° SW
Formosa-Tejano Wetlands Viewing Platform (Viewpoint) — 10.1 mi, 344° N
Judge Henry Joseph Huck (Monument) — 10.2 mi, 219° SW
Rene Robert Cavelier, Sieur de la Salle (Public Artwork) — 10.8 mi, 212° SW
Aransas National Wildlife Refuge (National Wildlife Refuge) — 11.0 mi, 214° SW · 298k acres
Shark Stadium (Stadium) — 11.2 mi, 071° E
Port Lavaca Main Street Theatre (Theatre) — 13.2 mi, 257° W
Calhoun County Museum (Museum) — 13.3 mi, 256° W
Unknown Park (Local Recreation) — 14.7 mi, 253° W
Powderhorn West Conservation Easement (Park) — 15.5 mi, 213° SW
Palmetto Bend (Local Conservation Area) — 18.3 mi, 329° NW
Lake Texana (Recreation Area) — 18.9 mi, 334° NW
Mad Island Wildlife Management Area (Marine Protected Area) — 20.5 mi, 090° E
Historica;Marker (Historic Ruins) — 21.1 mi, 055° NE
Buffalo Lake Overlook, Guadalupe Delta WMA (Nature Reserve) — 27.6 mi, 247° SW
Matagorda County Birding Nature Center (Nature Reserve) — 33.0 mi, 047° NE
Mission-Aransas National Estuarine Research Reserve (Marine Protected Area) — 33.4 mi, 224° SW
Nave Museum (Museum) — 37.3 mi, 285° W
San Bernard National Wildlife Refuge (National Wildlife Refuge) — 37.5 mi, 078° E · 193k acres
Showplace 3 (Cinema) — 37.6 mi, 011° N
El Campo Museum of Art, History, and Natural Science (Museum) — 39.2 mi, 011° N
Site of Caney Post Office (Historic Ruins) — 39.9 mi, 058° NE
Wharton County Historical Museum (Museum) — 51.1 mi, 022° N
20th Century Technology Museum (Museum) — 51.1 mi, 022° N
Rockport Birding & Kajak Adventures (Attraction) — 55.4 mi, 223° SW

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