| Back to United States. City: Gaithersburg, MD
Population (2000): 55,177
 Housing units: 20,099
Land area: 19.9 sq. mi.
Water area: 0.3 sq. mi.
White population: 36062
Black population: 4868
American Indian population: 126
Asian population: 10504
Native Hawaiian and Other Pacific Islander population: 24
Some other race population: 1837
Two or more races population: 1756
Urban population: 54490
Rural population: 687
Median age: 34.9
Average household size: 2.87
Median household income (1999): $84330
 
Nearest zip codes: 20877, 20880, 20874, 20850, 20879, 20886.
Year house built:
- 1999 to March 2000: 1004
- 1995 to 1998: 1720
- 1990 to 1994: 3061
- 1980 to 1989: 7705
- 1970 to 1979: 4899
- 1960 to 1969: 1365
- 1950 to 1959: 178
- 1940 to 1949: 92
- 1939 or earlier: 64
Bedrooms in owner-occupied houses in Gaithersburg, MD (20878):
- no bedroom: 91
- 1 bedrooms: 257
- 2 bedrooms: 1335
- 3 bedrooms: 4283
- 4 bedrooms: 5668
- 5 or more bedrooms: 2087
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 283
- 1 bedrooms: 1740
- 2 bedrooms: 1897
- 3 bedrooms: 1150
- 4 bedrooms: 363
- 5 or more bedrooms: 35
Vehicles available in 20878 zip code in owner-occupied houses:
- no vehicle: 140
- 1 vehicle: 2847
- 2 vehicles: 7407
- 3 vehicles: 2638
- 4 vehicles: 533
- 5 or more vehicles: 156
Vehicles available in renter-occupied housing units:
- no vehicle: 613
- 1 vehicle: 2515
- 2 vehicles: 1899
- 3 vehicles: 369
- 4 vehicles: 60
- 5 or more vehicles: 12
Estimate of home value of owner-occupied houses in 2000 in zip code 20878:
- Less than $10,000: 0
- $10,000 to $14,999: 30
- $15,000 to $19,999: 22
- $20,000 to $24,999: 16
- $25,000 to $29,999: 58
- $30,000 to $34,999: 41
- $35,000 to $39,999: 27
- $40,000 to $49,999: 9
- $50,000 to $59,999: 9
- $60,000 to $69,999: 10
- $70,000 to $79,999: 29
- $80,000 to $89,999: 39
- $90,000 to $99,999: 141
- $100,000 to $124,999: 771
- $125,000 to $149,999: 1276
- $150,000 to $174,999: 900
- $175,000 to $199,999: 672
- $200,000 to $249,999: 1988
- $250,000 to $299,999: 1707
- $300,000 to $399,999: 2971
- $400,000 to $499,999: 967
- $500,000 to $749,999: 436
- $750,000 to $999,999: 36
- $1,000,000 or more: 18
First ancestries reported:
- Other groups: 19210
- Irish: 4238
- German: 4101
- English: 2878
- United States or American: 2731
- Italian: 2504
- Russian: 1880
- Iranian: 1210
- Polish: 1157
- Scottish: 811
- Subsaharan African:: 765
- Eastern European: 706
- Scotch-Irish: 636
- French (except Basque): 619
- European: 573
- West Indian (excluding Hispanic groups):: 529
- British: 451
- Greek: 411
- African: 405
- Jamaican: 335
- French Canadian: 286
- Arab:: 263
- Hungarian: 229
- Norwegian: 228
- Ukrainian: 226
- Swedish: 191
- Dutch: 179
- Canadian: 167
- Welsh: 153
- Lithuanian: 148
- Northern European: 138
- Austrian: 131
- Trinidadian and Tobagonian: 128
- Portuguese: 122
- Romanian: 119
- Israeli: 101
- Swiss: 100
- Danish: 98
- Armenian: 95
- Ghanian: 93
- Other Subsaharan African: 89
- Czechoslovakian: 86
- Slovak: 84
- Lebanese: 84
- Turkish: 84
- Scandinavian: 80
- Brazilian: 66
- Latvian: 64
- Other Arab: 57
- Czech: 55
- Arab/Arabic: 46
- Nigerian: 44
- Finnish: 41
- Syrian: 36
- Sierra Leonean: 35
- Ugandan: 34
- Senegalese: 33
- Guyanese: 33
- Icelander: 31
- West Indian: 30
- U.S. Virgin Islander: 28
- Cypriot: 24
- Slovene: 21
- Serbian: 20
- Afghan: 18
- Belgian: 18
- Egyptian: 17
- South African: 16
- Moroccan: 15
- Slavic: 12
- Yugoslavian: 11
- Bulgarian: 11
- Kenyan: 10
- Haitian: 8
- Acadian/Cajun: 8
- Palestinian: 8
- Australian: 8
- Celtic: 8
- Assyrian/Chaldean/Syriac: 7
- Liberian: 6
- New Zealander: 5
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