Aransas County, TX Elevation & Topographic Map
Elevation
47 ft 14 m35 ft 11 m29 ft 9 m17 ft 5 m6 ft 2 m0 ft 0 m
Contours every 500 ft, bold every 2,500 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.
- County area
- Fades everything outside the official county boundary (US Census).
Elevation Data
Aransas County averages about 10 ft (3 m) above sea level across all its land. Its ground runs from sea level on Aransas Bay to 47 ft on the southwest side.
Average elevation
10 ft 3 m
all land inside the county
Highest
47 ft 14 m
on the southwest side
Lowest
0 ft 0 m
at sea level on Aransas Bay
Aransas County spans about 47 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.
4% of Aransas County's land lies below the average daily high tide (MHHW, NOAA), and 18% lies less than 3 ft above it. Check flood zones on FEMA's map
| Figure | Elevation |
|---|---|
| Average of all land | 10 ft3 m |
| Highest point Inside the county, on the southwest side | 47 ft14 m |
| Lowest point Where the land meets Aransas Bay | 0 ft0 m |
Topographic Map
- Location
- County in Texas, United States
- Population
- 25,595 2024 est.
- Land area
- 252.3 sq mi + 275.7 sq mi water
- Density
- 101 per sq mi
- Time zone
- Central UTC−6 / −5
- Landform region
- Coastal Plain 92%
- Drains to
- Gulf of America
⤓ Download this map
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
- San Patricio County62 ft
- Nueces County55 ft
- Refugio County44 ft
- Calhoun County15 ft
- Aransas County10 ft
Rankings by average elevation
- Counties in Texaslowest of 254
- Counties in the United States3,124th highest of 3,151
Peaks and hills highest inside
- The Sand Mounds46 ft
All 5 towns in Aransas County by typical elevation
- Aransas Pass partly16 ft
- Fulton15 ft
- Lamar14 ft
- Rockport13 ft
- Holiday Beach6 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, −1 ft at 27.9246° N, 97.1474° 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.