Baltimore County, MD Elevation & Topographic Map

Topographic elevation map of Baltimore County, Maryland, shaded from sea level on Saltpeter Creek to 970 ft on the northwest side
Elevation
970 ft 295 m730 ft 220 m600 ft 185 m360 ft 110 m120 ft 35 m0 ft 0 m
Contours every 500 ft, bold every 2,500 ft
USGS 3DEP · U.S. Census Bureau
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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

Baltimore County averages about 430 ft (130 m) above sea level across all its land. Its ground runs from sea level on Saltpeter Creek to 970 ft on the northwest side.

Average elevation
430 ft 130 m
all land inside the county
Highest
970 ft 295 m
on the northwest side
Lowest
0 ft 0 m
at sea level on Saltpeter Creek

Baltimore County spans about 970 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.

FigureElevation
Average of all land430 ft130 m
Highest point
Inside the county, on the northwest side
970 ft295 m
Lowest point
Where the land meets Saltpeter Creek
0 ft0 m

Elevation profile, south to north

23 mi south to north through Dundalk.

Topographic Map

Topographic elevation map of Baltimore County, Maryland, shaded from sea level on Saltpeter Creek to 970 ft on the northwest side
County boundary (dashed) over shaded terrain, with contours every 100 ft (30 m).
Location
County in Maryland, United States
Population
852,425 2024 est.
Land area
598.4 sq mi + 83.4 sq mi water
Density
1,425 per sq mi
Time zone
Eastern UTC−5 / −4
Landform regions
Piedmont 83%, Coastal Plain 15%
Drains to
Atlantic Ocean
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Carroll County650 ft
  2. York County, PA610 ft
  3. Howard County450 ft
  4. Baltimore County430 ft
  5. Harford County310 ft
  6. Baltimore city190 ft
  7. Anne Arundel County89 ft
  8. Kent County46 ft

Rankings by average elevation

Peaks and hills highest inside

  • Spook Hill790 ft
All 32 towns in Baltimore County by typical elevation
  1. Reisterstown650 ft
  2. Owings Mills560 ft
  3. Randallstown540 ft
  4. Garrison510 ft
  5. Milford Mill490 ft
  6. Mays Chapel490 ft
  7. Cockeysville460 ft
  8. Pikesville460 ft
  9. Woodlawn440 ft
  10. Lochearn420 ft
  11. Catonsville420 ft
  12. Towson410 ft
  13. Timonium400 ft
  14. Hampton390 ft
  15. Lutherville370 ft
  16. Parkville360 ft
  17. Carney340 ft
  18. Kingsville290 ft
  19. Perry Hall230 ft
  20. Honeygo200 ft
  21. Overlea180 ft
  22. White Marsh150 ft
  23. Arbutus140 ft
  24. Rossville110 ft
  25. Rosedale100 ft
  26. Lansdowne100 ft
  27. Baltimore Highlands90 ft
  28. Middle River49 ft
  29. Dundalk24 ft
  30. Essex22 ft
  31. Bowleys Quarters13 ft
  32. Edgemere12 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, −97 ft at 39.4621° N, 76.6499° W, is in such a hollow or patch and is not counted; this coastal land's lowest point is sea level on the coast.
  • 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.