San Patricio County, TX Elevation & Topographic Map

Topographic elevation map of San Patricio County, Texas, shaded from sea level on Nueces Bay to 210 ft on the northwest side
Elevation
210 ft 65 m160 ft 50 m130 ft 40 m79 ft 24 m26 ft 8 m0 ft 0 m
Contours every 500 ft, bold every 2,500 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.
County area
Fades everything outside the official county boundary (US Census).

Elevation Data

San Patricio County averages about 62 ft (19 m) above sea level across all its land. Its ground runs from sea level on Nueces Bay to 210 ft on the northwest side.

Average elevation
62 ft 19 m
all land inside the county
Highest
210 ft 65 m
on the northwest side
Lowest
0 ft 0 m
at sea level on Nueces Bay

San Patricio County spans about 210 ft of height, so no single spot tells the whole story. The ruler shows where most of its land lies, and where the other numbers you'll see come from.

Under 1% of San Patricio County's land lies below the average daily high tide (MHHW, NOAA), and 3% lies less than 3 ft above it. Check flood zones on FEMA's map

FigureElevation
Average of all land62 ft19 m
Highest point
Inside the county, on the northwest side
210 ft65 m
Lowest point
Where the land meets Nueces Bay
0 ft0 m

Elevation profile, west to east

31 mi west to east through Portland.

Topographic Map

Topographic elevation map of San Patricio County, Texas, shaded from sea level on Nueces Bay to 210 ft on the northwest side
County boundary (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
County in Texas, United States
Population
71,467 2024 est.
Land area
693.3 sq mi + 14.5 sq mi water
Density
103 per sq mi
Time zone
Central UTC−6 / −5
Landform region
Coastal Plain
Drains to
Gulf of America
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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

Neighboring counties sharing a border, by average

  1. Live Oak County250 ft
  2. Bee County240 ft
  3. Jim Wells County210 ft
  4. San Patricio County62 ft
  5. Nueces County55 ft
  6. Refugio County44 ft
  7. Aransas County10 ft

Rankings by average elevation

  • Counties in Texas239th highest of 254
  • Counties in the United States2,998th highest of 3,151

Peaks and hills highest inside

  • Chalk Hill, San Patricio County180 ft
All 25 towns in San Patricio County by typical elevation
  1. Mathis150 ft
  2. Paisano Park130 ft
  3. Lakeside, San Patricio County120 ft
  4. Lake City120 ft
  5. Edgewater Estates120 ft
  6. Lakeshore Gardens-Hidden Acres100 ft
  7. Edroy97 ft
  8. St. Paul, San Patricio County79 ft
  9. Odem74 ft
  10. Loma Linda55 ft
  11. Taft Southwest54 ft
  12. Del Sol52 ft
  13. Morgan Farm52 ft
  14. Rancho Chico50 ft
  15. La Paloma Addition50 ft
  16. San Patricio50 ft
  17. Sinton49 ft
  18. Taft48 ft
  19. Portland34 ft
  20. Gregory29 ft
  21. Tradewinds18 ft
  22. Aransas Pass16 ft
  23. Ingleside on the Bay16 ft
  24. Ingleside15 ft
  25. Falman11 ft
How we measure
  • Average: every USGS 3DEP bare-earth cell of land inside the Census county boundary (TIGER/Line, Jan 1 2026), weighted equally, on a 1 arc-second (≈100 ft, 30 m) grid. Land means the boundary minus Census area water.
  • Highest and lowest: the highest land cell. Lowest: the lowest land cell; coastal ground within 3 ft (1 m) of named tidal water counts as sea level.
  • 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, −6 ft at 27.8993° N, 97.6338° W, is in such a hollow or patch and is not counted; this coastal land's lowest point is sea level on the coast.
  • Nearby Places: neighboring counties and rankings use each one's average elevation, on its own grid, the same figure its page shows. Peaks and hills: the highest summits inside the county with at least 980 ft (300 m) of prominence, then the highest federal (GNIS) summits inside it 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).
  • Towns: each town's typical elevation (population-weighted median of its own 2020 blocks at 1 arc-second); a town is listed when any of its 2020 residents live in the county.
  • 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 (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 (TIGER boundaries and water, 2020 blocks, 2024 population estimates, county adjacency); NOAA NGS survey heights; BTS time zones; NOAA tidal surfaces (MHHW). All public domain.