Ilchester, MD Elevation & Topographic Map

Topographic elevation map of Ilchester, Maryland, shaded from 14 ft on the east side to 530 ft on the northwest side
Elevation
530 ft 160 m400 ft 120 m330 ft 100 m210 ft 65 m78 ft 24 m14 ft 4 m
Contours every 100 ft, bold every 500 ft
USGS 3DEP · U.S. Census Bureau
⤓ Download this map
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.
Area
Fades everything outside the official CDP boundary (US Census).

Elevation Data

Ilchester sits at about 330 ft (100 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
330 ft 100 m
most residents: 250–450 ft
Lowest
14 ft 4 m
on the east side
Highest
530 ft 160 m
on the northwest side
Average
320 ft 100 m
all land inside the CDP boundary

Ilchester spans about 516 ft of height, so no single spot tells the whole story. The ruler shows where its people live, and where the other numbers you'll see come from.

FigureElevation
Typical
Where people live: half of residents higher, half lower
330 ft100 m
Highest point
Inside the CDP boundary, on the northwest side
530 ft160 m
Lowest point
Inside the CDP boundary, on the east side
14 ft4 m
Airport (BWI)
FAA airport elevation, the highest point of its runways, 4.2 mi east of the CDP boundary
143 ft44 m
Average of all land320 ft100 m

Elevation profile, south to north

3.4 mi south to north through the middle of Ilchester.

Topographic Map

Topographic elevation map of Ilchester, Maryland, shaded from 14 ft on the east side to 530 ft on the northwest side
CDP boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
Unincorporated community (census-designated place) in Howard County, Maryland, United States
Population
26,824 2020 Census
Land area
10.8 sq mi + 0.1 sq mi water
Density
2,494 per sq mi
Coordinates
39.2110° N, 76.7828° W
Time zone
Eastern UTC−5 / −4
Landform region
Piedmont
Drains to
Patapsco River → Atlantic Ocean
Airport
Baltimore/Washington International Thurgood Marshall (BWI) 143 ft
ZIP codes 2
21043 21075
⤓ Download this map

WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.

Sources: U.S. Census Bureau, USGS, FAA

Nearby Places

Nearby towns by typical elevation

  1. Catonsville420 ft
  2. Ellicott City410 ft
  3. Columbia380 ft
  4. Ilchester330 ft
  5. Savage280 ft
  6. North Laurel260 ft
  7. Jessup210 ft
  8. Elkridge180 ft
  9. Severn150 ft
  10. Arbutus140 ft
  11. Lansdowne100 ft

Rankings by typical elevation

Peaks and hills nearest, by height

  • Quirauk Mountain2,140 ft
  • Chestnut Hill, Howard County540 ft
  • Lawyers Hill270 ft
  • Mount Misery150 ft
  • Federal Hill, Baltimore city82 ft
How we measure
  • Typical elevation: the population-weighted median: every 2020 Census block inside the CDP boundary, at its USGS 3DEP height, weighted by the people who live there. Half of residents live higher, half lower.
  • Lowest, highest, average: USGS 3DEP bare-earth heights on a 1 arc-second (≈100 ft, 30 m) grid, land only, inside the Census CDP boundary (TIGER, Jan 1 2026).
  • 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, 14 ft at 39.2257° N, 76.7185° W, is in such a hollow or patch and is not counted.
  • Nearby Places: nearby towns and rankings use each town's typical elevation, so every town is compared like for like. Rankings count every city, town, township and census-designated place, including places inside a town. Peaks and hills: the nearest summits with at least 980 ft (300 m) of prominence within 62 mi (100 km), then federal (GNIS) summits within 16 mi (25 km) 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).
  • 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 (FAA airport elevation, 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.
  • Ilchester is an unincorporated community; figures cover the census-designated place, a statistical area.
  • Sources: USGS 3DEP, GNIS, Watershed Boundary Dataset and physiographic provinces; U.S. Census Bureau (boundaries, 2020 blocks, Gazetteer areas, ZIP code areas); FAA airport data; BTS time zones; NOAA NGS survey heights. All public domain.