| Back to United States. City: Clayton, CA Population (2000): 14,223
Housing units: 5,194 Land area: 101.3 sq. mi. Water area: 0.0 sq. mi. White population: 12430 Black population: 218 American Indian population: 36 Asian population: 725 Native Hawaiian and Other Pacific Islander population: 17 Some other race population: 263 Two or more races population: 534 Urban population: 12433 Rural population: 1790 Median age: 40.0 Average household size: 2.73 Median household income (1999): $96658
 
Nearest zip codes: 94521, 94565, 94598, 94518, 94519, 94506.
Year house built:
- 1999 to March 2000: 141
- 1995 to 1998: 870
- 1990 to 1994: 776
- 1980 to 1989: 766
- 1970 to 1979: 1794
- 1960 to 1969: 610
- 1950 to 1959: 116
- 1940 to 1949: 29
- 1939 or earlier: 121
Bedrooms in owner-occupied houses in Clayton, CA (94517):
- no bedroom: 19
- 1 bedrooms: 108
- 2 bedrooms: 503
- 3 bedrooms: 1589
- 4 bedrooms: 1864
- 5 or more bedrooms: 616
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 16
- 1 bedrooms: 76
- 2 bedrooms: 83
- 3 bedrooms: 166
- 4 bedrooms: 89
- 5 or more bedrooms: 22
Vehicles available in 94517 zip code in owner-occupied houses:
- no vehicle: 88
- 1 vehicle: 825
- 2 vehicles: 2387
- 3 vehicles: 965
- 4 vehicles: 337
- 5 or more vehicles: 97
Vehicles available in renter-occupied housing units:
- no vehicle: 23
- 1 vehicle: 143
- 2 vehicles: 186
- 3 vehicles: 47
- 4 vehicles: 39
- 5 or more vehicles: 14
Estimate of home value of owner-occupied houses in 2000 in zip code 94517:
- 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: 9
- $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: 0
- $90,000 to $99,999: 10
- $100,000 to $124,999: 14
- $125,000 to $149,999: 24
- $150,000 to $174,999: 43
- $175,000 to $199,999: 107
- $200,000 to $249,999: 374
- $250,000 to $299,999: 618
- $300,000 to $399,999: 1468
- $400,000 to $499,999: 972
- $500,000 to $749,999: 434
- $750,000 to $999,999: 139
- $1,000,000 or more: 32
First ancestries reported:
- Other groups: 1881
- German: 1842
- Irish: 1617
- Italian: 1416
- English: 1295
- United States or American: 573
- European: 384
- Swedish: 310
- Norwegian: 303
- Polish: 281
- French (except Basque): 228
- Scottish: 183
- Portuguese: 155
- Scotch-Irish: 143
- Welsh: 101
- Danish: 95
- Afghan: 90
- Hungarian: 86
- Dutch: 77
- Russian: 74
- British: 72
- Swiss: 71
- Greek: 71
- Maltese: 63
- Austrian: 59
- Czech: 57
- Arab:: 55
- Ukrainian: 49
- French Canadian: 48
- Turkish: 43
- Armenian: 37
- Finnish: 32
- Canadian: 31
- Egyptian: 26
- Iranian: 26
- Lithuanian: 23
- Icelander: 21
- Lebanese: 20
- Croatian: 18
- Belgian: 17
- Czechoslovakian: 16
- Slovak: 16
- Slavic: 13
- Scandinavian: 12
- Syrian: 9
- Romanian: 9
- Northern European: 8
- Celtic: 7
- Latvian: 6
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