Boise County, ID Elevation & Topographic Map
Elevation
10,680 ft 3,255 m8,650 ft 2,635 m7,630 ft 2,325 m5,600 ft 1,705 m3,570 ft 1,085 m2,550 ft 780 m
Zoom in for contour lines
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
Boise County averages about 5,520 ft (1,685 m) above sea level across all its land. Its ground runs from 2,550 ft on the west side to 10,680 ft on Mount Cramer.
Average elevation
5,520 ft 1,685 m
all land inside the county
Highest
10,680 ft 3,255 m
on Mount Cramer
Lowest
2,550 ft 780 m
on the west side
Boise County spans about 8,130 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 | 5,520 ft1,685 m |
| Highest point Inside the county, on Mount Cramer (3DEP terrain model; no NGS survey height) | 10,680 ft3,255 m |
| Lowest point Inside the county, on the west side | 2,550 ft780 m |
Elevation profile, south to north
44 mi south to north through Robie Creek.
Topographic Map
- Location
- County in Idaho, United States
- Population
- 8,581 2024 est.
- Land area
- 1,899.4 sq mi + 7.4 sq mi water
- Density
- 4.5 per sq mi
- Time zone
- Mountain UTC−7 / −6
- Landform region
- Northern Rocky Mountains 90%
- Drains to
- Pacific Ocean
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Sources: U.S. Census Bureau, USGS
Nearby Places
Neighboring counties sharing a border, by average
- Custer County7,600 ft
- Valley County6,510 ft
- Boise County5,520 ft
- Elmore County4,740 ft
- Gem County3,570 ft
- Ada County3,050 ft
Rankings by average elevation
- Counties in Idaho16th highest of 44
- Counties in the United States140th highest of 3,151
Peaks and hills highest inside
- Braxon Peak10,320 ft
- Red Mountain8,710 ft
- Pilot Peak8,135 ft
- Sunset Mountain7,873 ft
- Shafer Butte7,595 ft
All 8 towns in Boise County by typical elevation
- Placerville4,350 ft
- Lowman4,140 ft
- Robie Creek3,930 ft
- Idaho City3,910 ft
- Banks3,610 ft
- Crouch3,120 ft
- Garden Valley3,080 ft
- Horseshoe Bend2,630 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; 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, 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.
- 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.