Fast Facts
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Olney, Maryland
— CDP —
Location of Olney, Maryland
Coordinates: 39°9′11″N 77°4′29″W / 39.15306°N 77.07472°W / 39.15306; -77.07472
Country
United States
State
Maryland
County
Montgomery
Area
- Total
13.0 sq mi (33.7 km2)
- Land
13.0 sq mi (33.6 km2)
- Water
0.0 sq mi (0.0 km2)
Elevation
541 ft (165 m)
Population (2000)
- Total
31,438
- Density
2,420.1/sq mi (934.4/km2)
Time zone
Eastern (EST) (UTC-5)
- Summer (DST)
EDT (UTC-4)
ZIP codes
20830, 20832
Area code(s)
301
FIPS code
24-58900
GNIS feature ID
0590948
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