Montgomery County, MD Elevation & Topographic Map
Elevation
880 ft 270 m670 ft 205 m560 ft 170 m340 ft 105 m120 ft 40 m16 ft 5 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
Montgomery County averages about 410 ft (125 m) above sea level across all its land. Its ground runs from 16 ft on the south side to 880 ft on the north side.
Average elevation
410 ft 125 m
all land inside the county
Highest
880 ft 270 m
on the north side
Lowest
16 ft 5 m
on the south side
Montgomery County spans about 864 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 | 410 ft125 m |
| Highest point Inside the county, on the north side | 880 ft270 m |
| Lowest point Inside the county, on the south side | 16 ft5 m |
Elevation profile, south to north
19 mi south to north through Germantown.
Topographic Map
- Location
- County in Maryland, United States
- Population
- 1,082,273 2024 est.
- Land area
- 493.1 sq mi + 13.8 sq mi water
- Density
- 2,195 per sq mi
- Time zone
- Eastern UTC−5 / −4
- Landform region
- Piedmont
- Drains to
- Atlantic Ocean
⤓ Download this map
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Sources: U.S. Census Bureau, USGS
Nearby Places
Neighboring counties sharing a border, by average
- Frederick County610 ft
- Loudoun County, VA470 ft
- Howard County450 ft
- Montgomery County410 ft
- Fairfax County, VA270 ft
- Arlington County, VA200 ft
- Prince George's County150 ft
- District of Columbia, DC150 ft
Rankings by average elevation
- Counties in Maryland8th highest of 23
- Counties in the United States2,456th highest of 3,151
Peaks and hills highest inside
- Black Hill, Montgomery County520 ft
- Hunting Hill515 ft
All 59 towns in Montgomery County by typical elevation
- Damascus690 ft
- Ten Mile Creek630 ft
- Laytonsville590 ft
- Clarksburg580 ft
- Spencerville520 ft
- Barnesville520 ft
- Washington Grove520 ft
- Redland480 ft
- Olney470 ft
- Flower Hill470 ft
- Ashton-Sandy Spring450 ft
- Leisure World450 ft
- Derwood450 ft
- Germantown440 ft
- Burtonsville440 ft
- Cloverly430 ft
- Gaithersburg430 ft
- Montgomery Village430 ft
- Rockville420 ft
- Brookeville400 ft
- Layhill390 ft
- Aspen Hill390 ft
- North Potomac390 ft
- Glenmont390 ft
- Fairland380 ft
- Colesville380 ft
- Poolesville380 ft
- Wheaton370 ft
- Kemp Mill360 ft
- Darnestown360 ft
- White Oak360 ft
- Forest Glen350 ft
- Chevy Chase Section Three350 ft
- North Kensington340 ft
- North Bethesda340 ft
- Chevy Chase Village340 ft
- Travilah340 ft
- Burnt Mills330 ft
- Potomac330 ft
- Four Corners330 ft
- Town of Chevy Chase330 ft
- Martin's Additions320 ft
- Garrett Park320 ft
- Bethesda320 ft
- Chevy Chase Section Five310 ft
- Chevy Chase View300 ft
- Calverton300 ft
- Kensington300 ft
- Friendship Heights Village290 ft
- Somerset290 ft
- Silver Spring290 ft
- Chevy Chase290 ft
- Hillandale280 ft
- North Chevy Chase280 ft
- South Kensington280 ft
- Brookmont270 ft
- Takoma Park230 ft
- Cabin John170 ft
- Glen Echo140 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, −130 ft at 39.0757° N, 77.2288° 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.