Norfolk County, MA Elevation & Topographic Map

Topographic elevation map of Norfolk County, Massachusetts, shaded from sea level on Hingham Bay to 630 ft on Great Blue Hill
Elevation
630 ft 190 m470 ft 145 m390 ft 120 m240 ft 70 m79 ft 24 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

Norfolk County averages about 190 ft (60 m) above sea level across all its land. Its ground runs from sea level on Hingham Bay to 630 ft on Great Blue Hill.

Average elevation
190 ft 60 m
all land inside the county
Highest
630 ft 190 m
on Great Blue Hill
Lowest
0 ft 0 m
at sea level on Hingham Bay

Norfolk County spans about 630 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 land190 ft60 m
Highest point
Inside the county, on Great Blue Hill (3DEP terrain model; no NGS survey height)
630 ft190 m
Lowest point
Where the land meets Hingham Bay
0 ft0 m

Elevation profile, west to east

27 mi west to east through Quincy.

Topographic Map

Topographic elevation map of Norfolk County, Massachusetts, shaded from sea level on Hingham Bay to 630 ft on Great Blue Hill
County boundary (dashed) over shaded terrain, with contours every 40 ft (12 m).
Location
County in Massachusetts, United States
Population
740,754 2024 est.
Land area
396.1 sq mi + 48.2 sq mi water
Density
1,870 per sq mi
Time zone
Eastern UTC−5 / −4
Landform region
New England 99%
Drains to
Atlantic Ocean
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring counties sharing a border, by average

  1. Worcester County720 ft
  2. Providence County, RI370 ft
  3. Middlesex County230 ft
  4. Norfolk County190 ft
  5. Bristol County99 ft
  6. Plymouth County80 ft
  7. Suffolk County58 ft

Rankings by average elevation

Peaks and hills highest inside

  • Great Blue Hill630 ft
  • Chickatawbut Hill510 ft
  • Hancock Hill, Norfolk County500 ft
  • Buck Hill, Norfolk County493 ft
  • Bluff Hill490 ft
All 29 towns in Norfolk County by typical elevation
  1. Franklin Town290 ft
  2. Foxborough270 ft
  3. Sharon260 ft
  4. Wrentham250 ft
  5. Bellingham240 ft
  6. Plainville240 ft
  7. Medway230 ft
  8. Dover230 ft
  9. Stoughton220 ft
  10. Avon210 ft
  11. Norfolk200 ft
  12. Westwood190 ft
  13. Walpole190 ft
  14. Randolph Town190 ft
  15. Medfield180 ft
  16. Millis170 ft
  17. Millis-Clicquot170 ft
  18. Holbrook160 ft
  19. Wellesley160 ft
  20. Canton150 ft
  21. Needham150 ft
  22. Norwood110 ft
  23. Dedham110 ft
  24. Weymouth Town110 ft
  25. Braintree Town100 ft
  26. Milton65 ft
  27. Brookline57 ft
  28. Cohasset51 ft
  29. Quincy29 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.
  • 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, −44 ft at 42.1879° N, 70.9204° 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.