Rio Grande City, TX Elevation & Topographic Map

Topographic elevation map of Rio Grande City, Texas, shaded from 130 ft near the middle to 320 ft on the northwest side
Elevation
320 ft 100 m270 ft 85 m250 ft 75 m200 ft 60 m160 ft 50 m130 ft 40 m
Contours every 200 ft, bold every 1,000 ft
USGS 3DEP · U.S. Census Bureau
How to use this mapviews, tools and data
Elevation
Ground colored by height from green (lowest) to white (highest), with contour lines every 40–500 ft (USGS data).
Satellite
A 2016 satellite photo at 33 ft (10 m) detail; contours off.
3D
Tilt and turn the terrain; hills are raised 1.5×, or set ×1 for true height.
Click or tap anywhere
The exact elevation of that spot in ft and m.
Measure
Pick two points for the climb, descent and grade along a straight line.
City area
Fades everything outside the official city limits (US Census).

Elevation Data

Rio Grande City sits at about 180 ft (55 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
180 ft 55 m
most residents: 160–240 ft
Lowest
130 ft 40 m
near the middle
Highest
320 ft 100 m
on the northwest side
Average
190 ft 60 m
all land inside city limits

Rio Grande City spans about 190 ft of height, so no single spot tells the whole story. The ruler shows where its people live, and where the other numbers you'll see come from.

FigureElevation
Typical
Where people live: half of residents higher, half lower
180 ft55 m
Highest point
Inside city limits, on the northwest side
320 ft100 m
Lowest point
Inside city limits, near the middle
130 ft40 m
Town center
USGS map point for Rio Grande City
170 ft55 m
Airport (67R)
FAA airport elevation, the highest point of its runways
290 ft88 m
Average of all land190 ft60 m

Elevation profile, west to east

5.9 mi west to east through the town center.

Topographic Map

Topographic elevation map of Rio Grande City, Texas, shaded from 130 ft near the middle to 320 ft on the northwest side
City limits (dashed) over shaded terrain, with contours every 10 ft (3 m).
Location
City in Starr County, Texas, United States
Population
15,526 2024 est.
Land area
11.4 sq mi
Density
1,368 per sq mi
Coordinates
26.3798° N, 98.8203° W
Time zone
Central UTC−6 / −5
Landform region
Coastal Plain
Drains to
Rio Grande → Gulf of America
Airport
Rio Grande City Municipal (67R) 290 ft
ZIP codes 1
78582
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Sources: U.S. Census Bureau, USGS, FAA

Nearby Places

How we measure
  • Typical elevation: the population-weighted median: every 2020 Census block inside the city limits, at its USGS 3DEP height, weighted by the people who live there. Half of residents live higher, half lower.
  • Lowest, highest, average: USGS 3DEP bare-earth heights on a 1 arc-second (≈100 ft, 30 m) grid, land only, inside the Census city limits (TIGER, Jan 1 2026).
  • Pits: the lowest point is the lowest ground outside closed hollows (quarry floors, mine pits, terrain-model artifacts): any hollow under 0.4 sq mi (1 km²), and any hollow under 2 sq mi (5 km²) whose floor is more than 100 ft (30 m) below its rim; and outside patches below sea level of under 0.4 sq mi (1 km²). The single lowest 3DEP cell, 130 ft at 26.3612° N, 98.7887° W, is in such a hollow or patch and is not counted.
  • Nearby Places: nearby towns and rankings use each town's typical elevation, so every town is compared like for like. Rankings count every city, town, township and census-designated place, including places inside a town. Peaks and hills: the nearest summits with at least 980 ft (300 m) of prominence within 62 mi (100 km), then federal (GNIS) summits within 16 mi (25 km) when there are fewer than 5; each is the 3DEP top on a ~7 ft (2 m) window, or the NGS published height when a usable survey mark sits within 160 ft (50 m) of it (shown as published).
  • Rounding: computed heights are rounded to 10 ft (5 m), or to 1 ft (1 m) under 100 ft; 3DEP is good to about a meter, not a foot. Published figures (FAA airport elevation, NGS survey heights) are shown as their publisher gives them.
  • Datum: North American Vertical Datum of 1988 (NAVD 88). NGS plans to replace NAVD 88 with a new datum (NAPGD2022); heights will then shift slightly.
  • Sources: USGS 3DEP, GNIS, Watershed Boundary Dataset and physiographic provinces; U.S. Census Bureau (boundaries, 2020 blocks, 2024 population estimates, Gazetteer areas, ZIP code areas); FAA airport data; BTS time zones. All public domain.