Richland Parish, LA Elevation & Topographic Map

Topographic elevation map of Richland Parish, Louisiana, shaded from 35 ft on the south side to 120 ft on the east side
Elevation
120 ft 35 m95 ft 29 m85 ft 26 m65 ft 20 m45 ft 14 m34 ft 11 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.
Parish area
Fades everything outside the official parish boundary (US Census).

Elevation Data

Richland Parish averages about 74 ft (23 m) above sea level across all its land. Its ground runs from 35 ft on the south side to 120 ft on the east side.

Average elevation
74 ft 23 m
all land inside the parish
Highest
120 ft 35 m
on the east side
Lowest
35 ft 11 m
on the south side

Richland Parish spans about 85 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 land74 ft23 m
Highest point
Inside the parish, on the east side
120 ft35 m
Lowest point
Inside the parish, on the south side
35 ft11 m

Elevation profile, west to east

26 mi west to east through Rayville.

Topographic Map

Topographic elevation map of Richland Parish, Louisiana, shaded from 35 ft on the south side to 120 ft on the east side
Parish boundary (dashed) over shaded terrain, with contours every 10 ft (3 m).
Location
Parish in Louisiana, United States
Population
19,643 2024 est.
Land area
555.6 sq mi + 8.8 sq mi water
Density
35 per sq mi
Time zone
Central UTC−6 / −5
Landform region
Coastal Plain
Drains to
Gulf of America
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Sources: U.S. Census Bureau, USGS

Nearby Places

Neighboring parishes sharing a border, by average

  1. Caldwell Parish120 ft
  2. Ouachita Parish100 ft
  3. West Carroll Parish98 ft
  4. Morehouse Parish94 ft
  5. East Carroll Parish91 ft
  6. Madison Parish77 ft
  7. Richland Parish74 ft
  8. Franklin Parish70 ft

Rankings by average elevation

All 4 towns in Richland Parish by typical elevation
  1. Delhi95 ft
  2. Rayville79 ft
  3. Mangham72 ft
  4. Start71 ft
How we measure
  • Average: every USGS 3DEP bare-earth cell of land inside the Census parish 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, 35 ft at 32.1810° N, 91.8343° W, is in such a hollow or patch and is not counted.
  • Nearby Places: neighboring parishes 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 parish 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 parish.
  • 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.