| Back to United States. City: Gaithersburg, MD
Population (2000): 21,980
 Housing units: 7,480
Land area: 7.7 sq. mi.
Water area: 0.0 sq. mi.
White population: 12464
Black population: 3775
American Indian population: 82
Asian population: 3362
Native Hawaiian and Other Pacific Islander population: 5
Some other race population: 1283
Two or more races population: 1009
Urban population: 21241
Rural population: 739
Median age: 33.1
Average household size: 3.02
Median household income (1999): $66799
 
Nearest zip codes: 20886, 20877, 20880, 20855, 20876, 20882.
Year house built:
- 1999 to March 2000: 18
- 1995 to 1998: 299
- 1990 to 1994: 1123
- 1980 to 1989: 4278
- 1970 to 1979: 1564
- 1960 to 1969: 74
- 1950 to 1959: 63
- 1940 to 1949: 28
- 1939 or earlier: 0
Bedrooms in owner-occupied houses in Gaithersburg, MD (20879):
- no bedroom: 126
- 1 bedrooms: 197
- 2 bedrooms: 646
- 3 bedrooms: 2812
- 4 bedrooms: 1528
- 5 or more bedrooms: 221
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 86
- 1 bedrooms: 412
- 2 bedrooms: 440
- 3 bedrooms: 587
- 4 bedrooms: 137
- 5 or more bedrooms: 22
Vehicles available in 20879 zip code in owner-occupied houses:
- no vehicle: 113
- 1 vehicle: 1472
- 2 vehicles: 2845
- 3 vehicles: 842
- 4 vehicles: 232
- 5 or more vehicles: 26
Vehicles available in renter-occupied housing units:
- no vehicle: 121
- 1 vehicle: 751
- 2 vehicles: 685
- 3 vehicles: 88
- 4 vehicles: 27
- 5 or more vehicles: 12
Estimate of home value of owner-occupied houses in 2000 in zip code 20879:
- Less than $10,000: 0
- $10,000 to $14,999: 17
- $15,000 to $19,999: 15
- $20,000 to $24,999: 0
- $25,000 to $29,999: 0
- $30,000 to $34,999: 0
- $35,000 to $39,999: 0
- $40,000 to $49,999: 0
- $50,000 to $59,999: 0
- $60,000 to $69,999: 0
- $70,000 to $79,999: 0
- $80,000 to $89,999: 6
- $90,000 to $99,999: 64
- $100,000 to $124,999: 867
- $125,000 to $149,999: 1201
- $150,000 to $174,999: 769
- $175,000 to $199,999: 617
- $200,000 to $249,999: 739
- $250,000 to $299,999: 179
- $300,000 to $399,999: 117
- $400,000 to $499,999: 84
- $500,000 to $749,999: 59
- $750,000 to $999,999: 0
- $1,000,000 or more: 0
First ancestries reported:
- Other groups: 8518
- German: 1597
- Irish: 1492
- English: 1157
- United States or American: 1003
- Italian: 898
- Subsaharan African:: 696
- Iranian: 385
- Russian: 324
- Polish: 319
- West Indian (excluding Hispanic groups):: 271
- European: 263
- Scottish: 254
- African: 246
- Scotch-Irish: 218
- Other Subsaharan African: 183
- British: 169
- French (except Basque): 165
- Greek: 162
- Armenian: 153
- Jamaican: 134
- Northern European: 118
- Arab:: 108
- Dutch: 97
- Swedish: 87
- Welsh: 87
- Guyanese: 85
- Portuguese: 81
- Norwegian: 78
- Hungarian: 67
- Lebanese: 63
- Haitian: 62
- Swiss: 58
- Somalian: 57
- Nigerian: 53
- Czech: 51
- Ukrainian: 48
- Ethiopian: 45
- Kenyan: 44
- Eastern European: 42
- Romanian: 41
- French Canadian: 40
- Canadian: 37
- Austrian: 34
- Slovak: 31
- Czechoslovakian: 29
- Trinidadian and Tobagonian: 28
- Brazilian: 27
- South African: 27
- Finnish: 27
- British West Indian: 27
- Lithuanian: 25
- Croatian: 23
- Basque: 23
- Liberian: 22
- Carpatho Rusyn: 22
- Israeli: 21
- Bulgarian: 21
- Scandinavian: 21
- Ghanian: 19
- Turkish: 18
- Arab/Arabic: 17
- Belgian: 15
- Icelander: 13
- Other West Indian: 11
- Pennsylvania German: 11
- Moroccan: 10
- Other Arab: 9
- Celtic: 9
- Palestinian: 9
- Danish: 9
- Barbadian: 9
- Australian: 7
- Latvian: 5
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