| Back to United States. City: Rockville, MD Population (2000): 27,768
Housing units: 9,806 Land area: 9.0 sq. mi. Water area: 0.1 sq. mi. White population: 19540 Black population: 2683 American Indian population: 98 Asian population: 2913 Native Hawaiian and Other Pacific Islander population: 13 Some other race population: 1680 Two or more races population: 841 Urban population: 27768 Rural population: 0 Median age: 40.9 Average household size: 2.85 Median household income (1999): $80595
 
Nearest zip codes: 20851, 20906, 20852, 20896, 20895, 20902.
Year house built:
- 1999 to March 2000: 85
- 1995 to 1998: 123
- 1990 to 1994: 88
- 1980 to 1989: 905
- 1970 to 1979: 1798
- 1960 to 1969: 4473
- 1950 to 1959: 1987
- 1940 to 1949: 260
- 1939 or earlier: 84
Bedrooms in owner-occupied houses in Rockville, MD (20853):
- no bedroom: 5
- 1 bedrooms: 104
- 2 bedrooms: 470
- 3 bedrooms: 2245
- 4 bedrooms: 3918
- 5 or more bedrooms: 1483
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 153
- 1 bedrooms: 323
- 2 bedrooms: 309
- 3 bedrooms: 365
- 4 bedrooms: 221
- 5 or more bedrooms: 54
Vehicles available in 20853 zip code in owner-occupied houses:
- no vehicle: 90
- 1 vehicle: 1761
- 2 vehicles: 4259
- 3 vehicles: 1480
- 4 vehicles: 475
- 5 or more vehicles: 160
Vehicles available in renter-occupied housing units:
- no vehicle: 257
- 1 vehicle: 611
- 2 vehicles: 402
- 3 vehicles: 95
- 4 vehicles: 39
- 5 or more vehicles: 21
Estimate of home value of owner-occupied houses in 2000 in zip code 20853:
- Less than $10,000: 0
- $10,000 to $14,999: 6
- $15,000 to $19,999: 5
- $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: 12
- $70,000 to $79,999: 26
- $80,000 to $89,999: 8
- $90,000 to $99,999: 30
- $100,000 to $124,999: 105
- $125,000 to $149,999: 551
- $150,000 to $174,999: 1530
- $175,000 to $199,999: 1432
- $200,000 to $249,999: 1646
- $250,000 to $299,999: 781
- $300,000 to $399,999: 992
- $400,000 to $499,999: 271
- $500,000 to $749,999: 235
- $750,000 to $999,999: 24
- $1,000,000 or more: 0
First ancestries reported:
- Other groups: 7945
- Irish: 2726
- German: 2101
- English: 1756
- United States or American: 1363
- Italian: 1341
- Polish: 688
- Subsaharan African:: 671
- Russian: 608
- Scottish: 418
- West Indian (excluding Hispanic groups):: 403
- Arab:: 347
- Scotch-Irish: 335
- European: 324
- Greek: 308
- Ethiopian: 303
- Eastern European: 265
- French (except Basque): 194
- British: 186
- Ukrainian: 183
- Haitian: 181
- Norwegian: 169
- French Canadian: 158
- Dutch: 147
- Israeli: 145
- Hungarian: 128
- Iranian: 125
- African: 122
- Welsh: 120
- Lithuanian: 110
- Slovak: 107
- Austrian: 105
- Jamaican: 102
- Swedish: 101
- Other Subsaharan African: 93
- Armenian: 90
- Arab/Arabic: 82
- Lebanese: 79
- Sierra Leonean: 69
- Trinidadian and Tobagonian: 63
- Estonian: 62
- Turkish: 53
- Moroccan: 53
- Czech: 53
- Swiss: 50
- Portuguese: 50
- Palestinian: 49
- Yugoslavian: 46
- Barbadian: 45
- Guyanese: 44
- Senegalese: 42
- Belgian: 41
- Afghan: 33
- Finnish: 31
- Carpatho Rusyn: 31
- Brazilian: 30
- Canadian: 30
- Other Arab: 29
- Celtic: 26
- Danish: 25
- Czechoslovakian: 24
- Syrian: 23
- Nigerian: 22
- Jordanian: 20
- Romanian: 20
- Latvian: 19
- Pennsylvania German: 17
- Northern European: 15
- South African: 15
- Scandinavian: 13
- Acadian/Cajun: 12
- Egyptian: 12
- Slavic: 10
- West Indian: 7
- Serbian: 7
- Ghanian: 5
- Alsatian: 5
- Other West Indian: 5
- Basque: 5
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