Polk County, MO Elevation & Topographic Map
Elevation
1,330 ft 405 m1,200 ft 365 m1,140 ft 345 m1,010 ft 310 m890 ft 270 m820 ft 250 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
Polk County averages about 1,050 ft (320 m) above sea level across all its land. Its ground runs from 820 ft on the northwest side to 1,330 ft on Blue Mound.
Average elevation
1,050 ft 320 m
all land inside the county
Highest
1,330 ft 405 m
on Blue Mound
Lowest
820 ft 250 m
on the northwest side
Polk County spans about 510 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 | 1,050 ft320 m |
| Highest point Inside the county, on Blue Mound (3DEP terrain model; no NGS survey height) | 1,330 ft405 m |
| Lowest point Inside the county, on the northwest side | 820 ft250 m |
Elevation profile, south to north
27 mi south to north through Bolivar.
Topographic Map
- Location
- County in Missouri, United States
- Population
- 33,070 2024 est.
- Land area
- 635.5 sq mi + 6.9 sq mi water
- Density
- 52 per sq mi
- Time zone
- Central UTC−6 / −5
- Landform region
- Ozark 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
- Greene County1,230 ft
- Dallas County1,100 ft
- Polk County1,050 ft
- Dade County1,030 ft
- Hickory County950 ft
- Cedar County910 ft
- St. Clair County830 ft
Rankings by average elevation
- Counties in Missouri18th highest of 114
- Counties in the United States1,323rd highest of 3,151
Peaks and hills highest inside
- Blue Mound, Polk County1,330 ft
- Lucas Knob1,320 ft
- Goodnight Knob1,320 ft
- Henley Knob1,290 ft
- Graveyard Hill, Polk County1,260 ft
All 8 towns in Polk County by typical elevation
- Pleasant Hope1,130 ft
- Morrisville1,130 ft
- Flemington1,120 ft
- Halfway1,100 ft
- Bolivar1,080 ft
- Fair Play1,020 ft
- Aldrich940 ft
- Humansville940 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; it is a named summit, so its height is the peak method: the 3DEP top on a ~7 ft (2 m) window, or the NGS published height when a survey mark sits within 160 ft (50 m) of it. 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.