Williamson County, TN Elevation & Topographic Map
Elevation
1,250 ft 380 m1,080 ft 330 m990 ft 300 m810 ft 245 m630 ft 190 m540 ft 165 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
Williamson County averages about 780 ft (240 m) above sea level across all its land. Its ground runs from 540 ft on the northwest side to 1,250 ft on the southeast side.
Average elevation
780 ft 240 m
all land inside the county
Highest
1,250 ft 380 m
on the southeast side
Lowest
540 ft 165 m
on the northwest side
Williamson County spans about 710 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 | 780 ft240 m |
| Highest point Inside the county, on the southeast side | 1,250 ft380 m |
| Lowest point Inside the county, on the northwest side | 540 ft165 m |
Elevation profile, west to east
32 mi west to east through Franklin.
Topographic Map
- Location
- County in Tennessee, United States
- Population
- 269,136 2024 est.
- Land area
- 582.9 sq mi + 1.2 sq mi water
- Density
- 462 per sq mi
- Time zone
- Central UTC−6 / −5
- Landform region
- Interior Low Plateaus
- Drains to
- Gulf of America
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Sources: U.S. Census Bureau, USGS
Nearby Places
Neighboring counties sharing a border, by average
- Marshall County820 ft
- Williamson County780 ft
- Maury County740 ft
- Dickson County710 ft
- Hickman County690 ft
- Rutherford County680 ft
- Cheatham County600 ft
- Davidson County590 ft
Rankings by average elevation
- Counties in Tennessee57th highest of 92
- Counties in the United States1,851st highest of 3,151
Peaks and hills highest inside
- Sumner Knob1,210 ft
- Jenkins Hill1,200 ft
- Polk Hill1,200 ft
- Morton Knob1,200 ft
- Potato Hill, Williamson County1,190 ft
All 6 towns in Williamson County by typical elevation
- Fairview830 ft
- Thompson's Station810 ft
- Spring Hill750 ft
- Brentwood730 ft
- Franklin690 ft
- Nolensville660 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, 350 ft at 35.9018° N, 86.8971° W, is in such a hollow or patch and is not counted.
- 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.