Harris County, TX Elevation & Topographic Map
Elevation
320 ft 100 m240 ft 75 m200 ft 60 m120 ft 35 m40 ft 12 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
Harris County averages about 85 ft (26 m) above sea level across all its land. Its ground runs from sea level on Black Duck Bay to 320 ft on the northwest side.
Average elevation
85 ft 26 m
all land inside the county
Highest
320 ft 100 m
on the northwest side
Lowest
0 ft 0 m
at sea level on Black Duck Bay
Harris County spans about 320 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.
| Figure | Elevation |
|---|---|
| Average of all land | 85 ft26 m |
| Highest point Inside the county, on the northwest side | 320 ft100 m |
| Lowest point Where the land meets Black Duck Bay | 0 ft0 m |
Elevation profile, west to east
52 mi west to east through Houston.
Topographic Map
- Location
- County in Texas, United States
- Population
- 5,009,302 2024 est.
- Land area
- 1,707.3 sq mi + 69.7 sq mi water
- Density
- 2,934 per sq mi
- Time zone
- Central UTC−6 / −5
- Landform region
- Coastal Plain
- Drains to
- Gulf of America
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Sources: U.S. Census Bureau, USGS
Nearby Places
Neighboring counties sharing a border, by average
- Waller County200 ft
- Montgomery County200 ft
- Fort Bend County86 ft
- Harris County85 ft
- Liberty County72 ft
- Brazoria County28 ft
- Chambers County15 ft
- Galveston County12 ft
Rankings by average elevation
- Counties in Texas236th highest of 254
- Counties in the United States2,951st highest of 3,151
Peaks and hills highest inside
- Hockley Mound240 ft
- Wolf Hill, Harris County170 ft
- Indian Hills, Harris County150 ft
All 46 towns in Harris County by typical elevation
- Waller partly250 ft
- Tomball180 ft
- The Woodlands partly160 ft
- Katy140 ft
- Cinco Ranch partly110 ft
- Jersey Village110 ft
- Spring100 ft
- Mission Bend partly90 ft
- Stafford partly77 ft
- Humble77 ft
- Bunker Hill Village77 ft
- Aldine76 ft
- Hedwig Village73 ft
- Spring Valley Village71 ft
- Missouri City partly69 ft
- Piney Point Village68 ft
- Hilshire Village67 ft
- Hunters Creek Village67 ft
- Atascocita66 ft
- Houston61 ft
- Bellaire53 ft
- West University Place51 ft
- Pearland partly50 ft
- Southside Place49 ft
- Crosby47 ft
- Barrett44 ft
- Sheldon40 ft
- Highlands35 ft
- Channelview31 ft
- South Houston30 ft
- Pasadena30 ft
- Deer Park30 ft
- Cloverleaf29 ft
- Friendswood partly28 ft
- Jacinto City28 ft
- Galena Park26 ft
- Baytown24 ft
- La Porte21 ft
- Morgan's Point19 ft
- League City partly18 ft
- Webster17 ft
- Taylor Lake Village14 ft
- El Lago13 ft
- Seabrook12 ft
- Nassau Bay11 ft
- Shoreacres8 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 2 arc-second (≈200 ft, 62 m) grid, coarsened from 1 arc-second so the whole area fits one run. Land means the boundary minus Census area water (on this grid, water areas of at least half a cell).
- Highest and lowest: the highest land cell, re-read at 1 arc-second around the 25 highest grid cells. Lowest: the lowest land cell, re-read at 1 arc-second around the 25 lowest grid cells; 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, −13 ft at 29.8685° N, 95.1024° 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. All public domain.