| Back to United States. City: St. Helena, CA Population (2000): 9,415
Housing units: 4,344 Land area: 133.7 sq. mi. Water area: 0.0 sq. mi. White population: 7896 Black population: 44 American Indian population: 60 Asian population: 101 Native Hawaiian and Other Pacific Islander population: 10 Some other race population: 1054 Two or more races population: 250 Urban population: 6654 Rural population: 2761 Median age: 41.1 Average household size: 2.49 Median household income (1999): $60964
 
Nearest zip codes: 94576, 94508, 95452, 94599, 94567, 95442.
Year house built:
- 1999 to March 2000: 74
- 1995 to 1998: 318
- 1990 to 1994: 251
- 1980 to 1989: 538
- 1970 to 1979: 865
- 1960 to 1969: 573
- 1950 to 1959: 545
- 1940 to 1949: 330
- 1939 or earlier: 848
Bedrooms in owner-occupied houses in St. Helena, CA (94574):
- no bedroom: 5
- 1 bedrooms: 138
- 2 bedrooms: 509
- 3 bedrooms: 1061
- 4 bedrooms: 415
- 5 or more bedrooms: 108
Bedrooms in renter-occupied apartments and housing units:
- no bedroom: 149
- 1 bedrooms: 414
- 2 bedrooms: 493
- 3 bedrooms: 389
- 4 bedrooms: 46
- 5 or more bedrooms: 19
Vehicles available in 94574 zip code in owner-occupied houses:
- no vehicle: 70
- 1 vehicle: 670
- 2 vehicles: 942
- 3 vehicles: 397
- 4 vehicles: 90
- 5 or more vehicles: 67
Vehicles available in renter-occupied housing units:
- no vehicle: 150
- 1 vehicle: 641
- 2 vehicles: 538
- 3 vehicles: 138
- 4 vehicles: 36
- 5 or more vehicles: 7
Estimate of home value of owner-occupied houses in 2000 in zip code 94574:
- 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: 6
- $30,000 to $34,999: 0
- $35,000 to $39,999: 0
- $40,000 to $49,999: 0
- $50,000 to $59,999: 8
- $60,000 to $69,999: 0
- $70,000 to $79,999: 0
- $80,000 to $89,999: 0
- $90,000 to $99,999: 0
- $100,000 to $124,999: 9
- $125,000 to $149,999: 31
- $150,000 to $174,999: 51
- $175,000 to $199,999: 10
- $200,000 to $249,999: 90
- $250,000 to $299,999: 201
- $300,000 to $399,999: 268
- $400,000 to $499,999: 229
- $500,000 to $749,999: 397
- $750,000 to $999,999: 181
- $1,000,000 or more: 225
First ancestries reported:
- Other groups: 2497
- German: 904
- English: 841
- Irish: 786
- United States or American: 607
- Italian: 606
- French (except Basque): 282
- Scottish: 183
- Norwegian: 160
- Swedish: 157
- Scotch-Irish: 148
- Russian: 113
- Portuguese: 112
- European: 104
- Yugoslavian: 79
- Dutch: 74
- Swiss: 55
- Austrian: 50
- Scandinavian: 49
- Polish: 42
- Danish: 38
- Croatian: 36
- British: 31
- Hungarian: 30
- Subsaharan African:: 29
- Welsh: 24
- Czech: 24
- Northern European: 22
- French Canadian: 21
- Greek: 18
- Cape Verdean: 16
- Ukrainian: 15
- Finnish: 13
- African: 13
- Slovak: 10
- Czechoslovakian: 9
- Arab:: 9
- Lithuanian: 8
- Slovene: 6
- Iraqi: 6
- Latvian: 6
- Egyptian: 3
- Belgian: 2
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