Collin County, TX Elevation & Topographic Map
Elevation
820 ft 250 m720 ft 220 m680 ft 205 m580 ft 175 m480 ft 145 m430 ft 135 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
Collin County averages about 630 ft (190 m) above sea level across all its land. Its ground runs from 430 ft on the south side to 820 ft on the northwest side.
Average elevation
630 ft 190 m
all land inside the county
Highest
820 ft 250 m
on the northwest side
Lowest
430 ft 130 m
on the south side
Collin County spans about 390 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 | 630 ft190 m |
| Highest point Inside the county, on the northwest side | 820 ft250 m |
| Lowest point Inside the county, on the south side | 430 ft130 m |
Elevation profile, west to east
32 mi west to east through Plano.
Topographic Map
- Location
- County in Texas, United States
- Population
- 1,254,658 2024 est.
- Land area
- 841.6 sq mi + 44.3 sq mi water
- Density
- 1,491 per sq mi
- Time zone
- Central UTC−6 / −5
- Landform region
- Coastal Plain
- 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
- Grayson County720 ft
- Denton County650 ft
- Collin County630 ft
- Fannin County600 ft
- Hunt County550 ft
- Rockwall County530 ft
- Dallas County520 ft
Rankings by average elevation
- Counties in Texas146th highest of 254
- Counties in the United States2,169th highest of 3,151
Peaks and hills highest inside
- Hays Hills650 ft
All 31 towns in Collin County by typical elevation
- Anna720 ft
- Weston710 ft
- Celina710 ft
- Prosper700 ft
- McKinney700 ft
- Frisco690 ft
- Plano690 ft
- Westminster680 ft
- Melissa670 ft
- Allen650 ft
- Farmersville640 ft
- Richardson partly620 ft
- Parker610 ft
- Fairview610 ft
- New Hope610 ft
- Josephine600 ft
- Blue Ridge590 ft
- Princeton590 ft
- Lucas590 ft
- Nevada590 ft
- Murphy570 ft
- Seis Lagos560 ft
- Lowry Crossing550 ft
- Royse City partly550 ft
- St. Paul550 ft
- Garland partly540 ft
- Dallas partly540 ft
- Wylie530 ft
- Sachse partly530 ft
- Carrollton partly520 ft
- Lavon510 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.
- 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.