| Back to United States. City: Gaithersburg, MD Population (2000): 12,175
Housing units: 3,869 Land area: 38.8 sq. mi. Water area: 0.0 sq. mi. White population: 10889 Black population: 581 American Indian population: 29 Asian population: 390 Native Hawaiian and Other Pacific Islander population: 5 Some other race population: 81 Two or more races population: 200 Urban population: 8497 Rural population: 3678 Median age: 38.1 Average household size: 3.19 Median household income (1999): $97092
 
Nearest zip codes: 20886, 20879, 20872, 20880, 20876, 20877.
Year house built:
- 1999 to March 2000: 110
- 1995 to 1998: 215
- 1990 to 1994: 549
- 1980 to 1989: 1350
- 1970 to 1979: 739
- 1960 to 1969: 449
- 1950 to 1959: 190
- 1940 to 1949: 54
- 1939 or earlier: 260
Bedrooms in owner-occupied houses in Gaithersburg, MD (20882):
- no bedroom: 0
- 1 bedrooms: 13
- 2 bedrooms: 91
- 3 bedrooms: 1062
- 4 bedrooms: 1788
- 5 or more bedrooms: 682
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 0
- 1 bedrooms: 17
- 2 bedrooms: 38
- 3 bedrooms: 74
- 4 bedrooms: 55
- 5 or more bedrooms: 24
Vehicles available in 20882 zip code in owner-occupied houses:
- no vehicle: 52
- 1 vehicle: 461
- 2 vehicles: 1512
- 3 vehicles: 1051
- 4 vehicles: 428
- 5 or more vehicles: 132
Vehicles available in renter-occupied housing units:
- no vehicle: 28
- 1 vehicle: 67
- 2 vehicles: 51
- 3 vehicles: 35
- 4 vehicles: 25
- 5 or more vehicles: 2
Estimate of home value of owner-occupied houses in 2000 in zip code 20882:
- Less than $10,000: 0
- $10,000 to $14,999: 0
- $15,000 to $19,999: 0
- $20,000 to $24,999: 0
- $25,000 to $29,999: 3
- $30,000 to $34,999: 0
- $35,000 to $39,999: 8
- $40,000 to $49,999: 2
- $50,000 to $59,999: 0
- $60,000 to $69,999: 15
- $70,000 to $79,999: 0
- $80,000 to $89,999: 37
- $90,000 to $99,999: 0
- $100,000 to $124,999: 121
- $125,000 to $149,999: 148
- $150,000 to $174,999: 272
- $175,000 to $199,999: 368
- $200,000 to $249,999: 568
- $250,000 to $299,999: 418
- $300,000 to $399,999: 787
- $400,000 to $499,999: 414
- $500,000 to $749,999: 164
- $750,000 to $999,999: 10
- $1,000,000 or more: 9
First ancestries reported:
- English: 1564
- Irish: 1557
- German: 1496
- Other groups: 1144
- United States or American: 1087
- Italian: 824
- Polish: 283
- French (except Basque): 230
- Scotch-Irish: 209
- European: 177
- Russian: 148
- Swedish: 146
- British: 145
- Dutch: 137
- Welsh: 123
- Scottish: 117
- Iranian: 92
- Greek: 91
- French Canadian: 91
- Arab:: 90
- Czech: 68
- Lebanese: 63
- Norwegian: 57
- Canadian: 47
- Eastern European: 43
- Hungarian: 40
- Subsaharan African:: 40
- Lithuanian: 37
- Portuguese: 34
- Scandinavian: 31
- Swiss: 29
- Slovak: 29
- West Indian (excluding Hispanic groups):: 29
- African: 28
- Ukrainian: 26
- Jamaican: 24
- Danish: 15
- Palestinian: 13
- Nigerian: 12
- Austrian: 11
- Croatian: 10
- Egyptian: 9
- Finnish: 9
- Yugoslavian: 8
- Guyanese: 8
- Turkish: 7
- Israeli: 7
- Belgian: 7
- Syrian: 5
- British West Indian: 5
- Romanian: 5
- Latvian: 5
- Czechoslovakian: 4
- Armenian: 2
- Pennsylvania German: 1
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