Median household income (1999): $105,393
Estimated median household income in 2005: $114,940
| This zip code | $114,940 | | California: | $53,629 |
Nearest zip codes: 94542, 94546, 94541, 94544, 94583, 94545.
Housing units in zip code 94552 with a mortgage: 3,457 (569 second mortgage, 409 home equity loan, 8 both second mortgage and home equity loan)
Houses without a mortgage: 429
Median monthly owner costs for units with a mortgage: $2,269
Median monthly owner costs for units without a mortgage: $454
Residents with income below the poverty level in 1999:
| This zip code: | 2.8% | | Whole state: | 14.2% |
Residents with income below 50% of the poverty level in 1999:
| This zip code: | 1.9% | | Whole state: | 6.3% |
Median number of rooms in houses and condos:
| Here: | 7.0 | | State: | 5.8 |
Median number of rooms in apartments:
| Here: | 5.6 | | State: | 3.5 |
Year house built:
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- 1999 to March 2000: 323
- 1995 to 1998: 1,297
- 1990 to 1994: 391
- 1980 to 1989: 1,200
- 1970 to 1979: 543
- 1960 to 1969: 506
- 1950 to 1959: 102
- 1940 to 1949: 79
- 1939 or earlier: 163
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Bedrooms in owner-occupied houses in Castro Valley, CA (94552):
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- no bedroom: 19
- 1 bedrooms: 86
- 2 bedrooms: 342
- 3 bedrooms: 1,417
- 4 bedrooms: 2,008
- 5 or more bedrooms: 381
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Bedrooms in renter-occupied apartments and housing units:
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- no bedroom: 7
- 1 bedrooms: 52
- 2 bedrooms: 19
- 3 bedrooms: 100
- 4 bedrooms: 66
- 5 or more bedrooms: 0
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Vehicles available in 94552 zip code in owner-occupied houses/condos:
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- no vehicle: 63
- 1 vehicle: 590
- 2 vehicles: 2,201
- 3 vehicles: 1,033
- 4 vehicles: 276
- 5 or more vehicles: 90
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Vehicles available in renter-occupied apartments:
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- no vehicle: 0
- 1 vehicle: 60
- 2 vehicles: 147
- 3 vehicles: 20
- 4 vehicles: 17
- 5 or more vehicles: 0
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Estimated household income distribution in 2005:

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Estimate of home value of owner-occupied houses/condos in 2005 in zip code 94552:
- $25,000 to $29,999: 10
- $30,000 to $34,999: 23
- $40,000 to $49,999: 42
- $50,000 to $59,999: 17
- $80,000 to $89,999: 10
- $125,000 to $149,999: 13
- $150,000 to $174,999: 21
- $175,000 to $199,999: 40
- $200,000 to $249,999: 152
- $250,000 to $299,999: 287
- $300,000 to $399,999: 946
- $400,000 to $499,999: 1360
- $500,000 to $749,999: 915
- $750,000 to $999,999: 41
- $1,000,000 or more: 9
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Rent paid by renters in 2000 in zip code 94552:
- $400 to $449: 8
- $500 to $549: 23
- $550 to $599: 3
- $650 to $699: 22
- $700 to $749: 20
- $900 to $999: 19
- $1,000 to $1,249: 22
- $1,500 to $1,999: 45
- $2,000 or more: 21
- No cash rent: 12
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Median price asked for vacant for-sale houses in 2000: $350,000
Estimated median house (or condo) value in 2005 for: - White Non-Hispanic householders: $848,738
- Black or African American householders: $823,961
- American Indian or Alaska Native householders: $563,095
- Asian householders: $946,819
- Native Hawaiian and other Pacific Islander householders: $846,895
- Some other race householders: $924,499
- Two or more races householders: $921,428
- Hispanic or Latino householders: $854,676
Housing units in structures:
- One, detached: 3,871
- One, attached: 634
- Two: 11
- 3 or 4: 40
- Mobile homes: 48

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Means of transportation to work
- Drove a car alone: 5,749 (77%)
- Carpooled: 636 (9%)
- Subway or elevated: 490 (7%)
- Railroad: 57 (1%)
- Motorcycle: 21 (0%)
- Bicycle: 31 (0%)
- Walked: 79 (1%)
- Other means: 39 (1%)
- Worked at home: 317 (4%)
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Travel time to work
- Less than 5 minutes: 24
- 5 to 9 minutes: 166
- 10 to 14 minutes: 494
- 15 to 19 minutes: 797
- 20 to 24 minutes: 1235
- 25 to 29 minutes: 413
- 30 to 34 minutes: 1338
- 35 to 39 minutes: 275
- 40 to 44 minutes: 363
- 45 to 59 minutes: 750
- 60 to 89 minutes: 869
- 90 or more minutes: 378
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Percentage of zip code residents living and working in this county: 65.8%
Household type by relationship
Households: 13,360
- In family households: 12,372 (3,218 male householders, 572 female householders)
3,478 spouses, 4,131 children (3,837 natural, 79 adopted, 215 stepchildren), 107 grandchildren, 116 brothers or sisters, 267 parents, 215 other relatives, 268 non-relatives
- In nonfamily households: 988 (348 male householders (236 living alone)), 417 female householders (326 living alone)), 223 nonrelatives
- In group quarters: 36 (0 institutionalized population)
Size of family households: 1,274 2-persons, 991 3-persons, 990 4-persons, 339 5-persons, 182 6-persons, 14 7-or-more-persons.
Size of nonfamily households: 562 1-person, 182 2-persons, 15 3-persons, 6 4-persons.
2,972 married couples with children.
297 single-parent households (78 men, 219 women).
67.5% of residents of 94552 zip code speak English at home.
5.2% of residents speak Spanish at home (74% very well, 15% well, 10% not well, 2% not at all).
7.0% of residents speak other Indo-European language at home (74% very well, 16% well, 8% not well, 2% not at all).
20.0% of residents speak Asian or Pacific Island language at home (56% very well, 23% well, 17% not well, 4% not at all).
0.2% of residents speak other language at home (100% very well).
Foreign born population: 3,247 (24.6%)
(66.0% of them are naturalized citizens)
| This zip code: | 24.6% | | Whole state: | 26.2% |
Most common places of birth for the foreign-born residents:
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- China, excluding Hong Kong and Taiwan (22%)
- Hong Kong (15%)
- India (8%)
- Philippines (8%)
- Korea (7%)
- Mexico (6%)
- Taiwan (5%)
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Year of entry for the foreign-born population
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- 1995 to March 2000: 388
- 1990 to 1994: 418
- 1985 to 1989: 527
- 1980 to 1984: 475
- 1975 to 1979: 451
- 1970 to 1974: 340
- 1970 to 1974: 311
- 1965 to 1969: 337
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First ancestries reported:
- Other groups: 5694
- German: 1154
- English: 766
- Italian: 694
- Irish: 653
- Portuguese: 365
- United States or American: 335
- Scottish: 242
- European: 238
- Russian: 213
- French (except Basque): 205
- Norwegian: 131
- Dutch: 112
- Swedish: 106
- Scotch-Irish: 90
- Austrian: 89
- Subsaharan African:: 84
- Arab:: 83
- Northern European: 82
- Iranian: 73
- British: 67
- Polish: 66
- Danish: 62
- Welsh: 44
- African: 44
- South African: 40
- Afghan: 39
- Arab/Arabic: 37
- Icelander: 32
- Canadian: 31
- Greek: 25
- French Canadian: 24
- Lithuanian: 23
- Scandinavian: 20
- Lebanese: 20
- Hungarian: 19
- Yugoslavian: 18
- Slovak: 17
- West Indian (excluding Hispanic groups):: 17
- Jamaican: 17
- Egyptian: 16
- Australian: 15
- Ukrainian: 14
- Celtic: 11
- Palestinian: 10
- Finnish: 9
- Croatian: 9
- Eastern European: 8
- Romanian: 6
- Czechoslovakian: 6
- Swiss: 6

Median worth of mobile homes: $361,100


Housing units lacking complete plumbing facilities: 0%
Housing units lacking complete kitchen facilities: 0%
Most commonly used house heating fuel:
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- Utility gas (78%)
- Electricity (15%)
- Bottled, tank, or LP gas (5%)
- Wood (1%)
- Other fuel (1%)
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Place of birth for U.S.-born residents:
- This state: 7407
- Northeast: 682
- Midwest: 937
- South: 516
- West: 459
47% of the 94552 zip code residents lived in the same house 5 years ago.
Out of people who lived in different houses, 62% lived in this county.
Out of people who lived in different counties, 76% lived in California.
Population in 1990: 7,936. Population change in the 1990s: +5,266 (+66.4%).
Year Householders Moved Into Unit:
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Private vs. public school enrollment:
Students in private schools in grades 1 to 8 (elementary and middle school): 298
| Here: | 18.5% | | California: | 9.9% |
Students in private schools in grades 9 to 12 (high school): 121
| Here: | 14.9% | | California: | 7.8% |
Students in private undergraduate colleges: 179
| Here: | 25.9% | | California: | 15.4% |
School Enrollment by Level of School
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Top industries in this zip code by the number of employees in 2005:
- Administrative and Support and Waste Management and Remediation Services: Janitorial Services (100-249 employees: 1 establishment, 20-49 employees: 1 establishment)
- Construction: Electrical Contractors (20-49: 1, 10-19: 1, 5-9: 3, 1-4: 2)
- Arts, Entertainment, and Recreation: Fitness and Recreational Sports Centers (20-49: 1, 5-9: 1, 1-4: 2)
- Construction: Water and Sewer Line and Related Structures Construction (20-49: 1, 5-9: 1)
- Administrative and Support and Waste Management and Remediation Services: Landscaping Services (20-49: 1, 1-4: 1)
- Accommodation and Food Services: Full-Service Restaurants (20-49: 1, 1-4: 1)
- Administrative and Support and Waste Management and Remediation Services: Temporary Help Services (20-49: 1)
- Management of Companies and Enterprises: Corporate, Subsidiary, and Regional Managing Offices (20-49: 1)
- Health Care and Social Assistance: Homes for the Elderly (20-49: 1)
Age and Sex of Sensory-Disabled Residents (Noninstitutionalized)
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Age and Sex of Physically-Disabled Residents (Noninstitutionalized)
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Age and Sex of Mentally-Disabled Residents (Noninstitutionalized)
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Age and Sex of Self-Care Disabled Residents (Noninstitutionalized)
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Age and Sex of Go-Outside-Home Disabled Residents (Noninstitutionalized)
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Age and Sex of Residents with Employment Disability (Noninstitutionalized)
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33 people in other noninstitutional group quarters
2 people in religious group quarters
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