San Isidro, TX Elevation & Topographic Map

Topographic elevation map of San Isidro, Texas, shaded from 260 ft on the east side to 320 ft on the south side
Elevation
320 ft 100 m310 ft 95 m300 ft 90 m280 ft 85 m270 ft 80 m260 ft 80 m
Contours every 100 ft, bold every 500 ft
USGS 3DEP · U.S. Census Bureau
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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.
Area
Fades everything outside the official CDP boundary (US Census).

Elevation Data

San Isidro sits at about 290 ft (90 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
290 ft 90 m
most residents: 270–290 ft
Lowest
260 ft 80 m
on the east side
Highest
320 ft 100 m
on the south side
Average
290 ft 85 m
all land inside the CDP boundary

San Isidro spans about 60 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
290 ft90 m
Highest point
Inside the CDP boundary, on the south side
320 ft100 m
Lowest point
Inside the CDP boundary, on the east side
260 ft80 m
Town center
USGS map point for San Isidro
280 ft85 m
Average of all land290 ft85 m

Elevation profile, south to north

2.2 mi south to north through the town center.

Topographic Map

Topographic elevation map of San Isidro, Texas, shaded from 260 ft on the east side to 320 ft on the south side
CDP boundary (dashed) over shaded terrain, with contours every 10 ft (3 m).
Location
Unincorporated community (census-designated place) in Starr County, Texas, United States
Population
187 2020 Census
Land area
3.1 sq mi
Density
60 per sq mi
Coordinates
26.7167° N, 98.4539° W
Time zone
Central UTC−6 / −5
Landform region
Coastal Plain
Drains to
Gulf of America
ZIP codes 2
78536 78588
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WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.

Sources: U.S. Census Bureau, USGS

Nearby Places

Nearby towns by typical elevation

  1. El Brazil390 ft
  2. Santa Anna, Starr County370 ft
  3. La Carla340 ft
  4. Sammy Martinez300 ft
  5. Elias-Fela Solis300 ft
  6. San Isidro290 ft
  7. Delmita290 ft
  8. Eugenio Saenz270 ft
  9. Salida del Sol Estates230 ft
  10. Encino120 ft
  11. Linn80 ft

Rankings by typical elevation

How we measure
  • Typical elevation: the population-weighted median: every 2020 Census block inside the CDP boundary, 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 CDP boundary (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, 250 ft at 26.7210° N, 98.4443° 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.
  • San Isidro is an unincorporated community; figures cover the census-designated place, a statistical area.
  • Sources: USGS 3DEP, GNIS, Watershed Boundary Dataset and physiographic provinces; U.S. Census Bureau (boundaries, 2020 blocks, Gazetteer areas, ZIP code areas); BTS time zones. All public domain.