| Back to United States. City: Gaithersburg, MD
Population (2000): 30,129
 Housing units: 11,086
Land area: 6.0 sq. mi.
Water area: 0.0 sq. mi.
White population: 15160
Black population: 5346
American Indian population: 154
Asian population: 3990
Native Hawaiian and Other Pacific Islander population: 22
Some other race population: 4007
Two or more races population: 1450
Urban population: 30129
Rural population: 0
Median age: 33.3
Average household size: 2.78
Median household income (1999): $51309
 
Nearest zip codes: 20880, 20879, 20855, 20886, 20850, 20878.
Year house built:
- 1999 to March 2000: 355
- 1995 to 1998: 349
- 1990 to 1994: 1035
- 1980 to 1989: 2398
- 1970 to 1979: 3711
- 1960 to 1969: 2116
- 1950 to 1959: 672
- 1940 to 1949: 169
- 1939 or earlier: 304
Bedrooms in owner-occupied houses in Gaithersburg, MD (20877):
- no bedroom: 54
- 1 bedrooms: 414
- 2 bedrooms: 551
- 3 bedrooms: 1803
- 4 bedrooms: 1478
- 5 or more bedrooms: 295
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 466
- 1 bedrooms: 2418
- 2 bedrooms: 2174
- 3 bedrooms: 803
- 4 bedrooms: 145
- 5 or more bedrooms: 37
Vehicles available in 20877 zip code in owner-occupied houses:
- no vehicle: 189
- 1 vehicle: 1100
- 2 vehicles: 2266
- 3 vehicles: 690
- 4 vehicles: 311
- 5 or more vehicles: 39
Vehicles available in renter-occupied housing units:
- no vehicle: 1370
- 1 vehicle: 3086
- 2 vehicles: 1308
- 3 vehicles: 229
- 4 vehicles: 23
- 5 or more vehicles: 27
Estimate of home value of owner-occupied houses in 2000 in zip code 20877:
- Less than $10,000: 8
- $10,000 to $14,999: 0
- $15,000 to $19,999: 16
- $20,000 to $24,999: 0
- $25,000 to $29,999: 9
- $30,000 to $34,999: 0
- $35,000 to $39,999: 0
- $40,000 to $49,999: 5
- $50,000 to $59,999: 6
- $60,000 to $69,999: 7
- $70,000 to $79,999: 38
- $80,000 to $89,999: 64
- $90,000 to $99,999: 199
- $100,000 to $124,999: 564
- $125,000 to $149,999: 674
- $150,000 to $174,999: 468
- $175,000 to $199,999: 504
- $200,000 to $249,999: 718
- $250,000 to $299,999: 375
- $300,000 to $399,999: 135
- $400,000 to $499,999: 9
- $500,000 to $749,999: 0
- $750,000 to $999,999: 0
- $1,000,000 or more: 0
First ancestries reported:
- Other groups: 14132
- Subsaharan African:: 1552
- German: 1440
- Irish: 1377
- United States or American: 1319
- English: 1111
- Italian: 813
- African: 741
- Polish: 470
- West Indian (excluding Hispanic groups):: 423
- Scottish: 346
- Iranian: 334
- Russian: 311
- French (except Basque): 220
- Scotch-Irish: 189
- Other Subsaharan African: 184
- Jamaican: 179
- Arab:: 177
- Haitian: 174
- Liberian: 143
- European: 140
- Ghanian: 125
- Ethiopian: 117
- Greek: 112
- Lebanese: 111
- Dutch: 111
- Ukrainian: 96
- Portuguese: 87
- Swedish: 83
- Brazilian: 81
- Nigerian: 78
- Swiss: 76
- Slovak: 65
- British: 64
- Norwegian: 63
- Sudanese: 55
- French Canadian: 54
- Hungarian: 48
- Ugandan: 47
- Guyanese: 47
- Austrian: 43
- Armenian: 41
- Senegalese: 40
- Trinidadian and Tobagonian: 40
- Australian: 37
- Eastern European: 37
- Welsh: 31
- Lithuanian: 29
- Canadian: 29
- Other Arab: 26
- Danish: 26
- Belgian: 25
- Scandinavian: 22
- Slavic: 20
- Palestinian: 16
- Cape Verdean: 15
- Arab/Arabic: 15
- Czech: 13
- Croatian: 13
- West Indian: 13
- Finnish: 12
- Northern European: 12
- Bermudan: 10
- Israeli: 10
- Egyptian: 9
- Afghan: 8
- Turkish: 8
- Sierra Leonean: 7
- U.S. Virgin Islander: 7
- Czechoslovakian: 6
- Romanian: 5
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