Kemah, TX Elevation & Topographic Map
Elevation
33 ft 10 m25 ft 8 m21 ft 6 m12 ft 4 m4 ft 1 m0 ft 0 m
Contours every 100 ft, bold every 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.
- City area
- Fades everything outside the official city limits (US Census).
Elevation Data
Kemah sits at about 17 ft (5 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
17 ft 5 m
most residents: 7–21 ft
Lowest
0 ft 0 m
at sea level on Galveston Bay
Highest
27 ft 8 m
on the southeast side
Average
13 ft 4 m
all land inside city limits
Kemah is nearly flat: its ground varies by only about 27 ft, so the figures below sit close together.
Under 1% of Kemah's land lies below the average daily high tide (MHHW, NOAA), and under 1% lies less than 3 ft above it. Check flood zones on FEMA's map
| Figure | Elevation |
|---|---|
| Typical Where people live: half of residents higher, half lower | 17 ft5 m |
| Highest point Inside city limits, on the southeast side | 27 ft8 m |
| Lowest point Where the land meets Galveston Bay | 0 ft0 m |
| Town center USGS map point for Kemah | 10 ft3 m |
| Airport (T41) FAA airport elevation, the highest point of its runways, 8.6 mi north of the city limits | 25 ft8 m |
| Average of all land | 13 ft4 m |
Topographic Map
- Location
- City in Galveston County, Texas, United States
- Population
- 2,853 2024 est.
- Land area
- 1.8 sq mi + 0.1 sq mi water
- Density
- 1,556 per sq mi
- Coordinates
- 29.5427° N, 95.0205° W
- Time zone
- Central UTC−6 / −5
- Landform region
- Coastal Plain
- Drains to
- Gulf of America
- Airport
- La Porte Municipal (T41) 25 ft
- ZIP codes 1
- 77565
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- League City18 ft
- Webster17 ft
- Kemah17 ft
- Bacliff15 ft
- Taylor Lake Village14 ft
- Dickinson14 ft
- El Lago13 ft
- Seabrook12 ft
- Nassau Bay11 ft
- Shoreacres8 ft
- Clear Lake Shores7 ft
Rankings by typical elevation
- Towns in Texas1,796th highest of 1,861
- Towns in Galveston County4th highest of 16
Peaks and hills nearest, by height
- Mesquite Knoll (historical)22 ft
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, −2 ft at 29.5493° N, 95.0226° 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: 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; NOAA tidal surfaces (MHHW). All public domain.