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94528 Zip Code (Diablo, CA) Detailed Profile




Cities: Diablo, CA (48.91%), Danville, CA (0.29%), Alamo, CA (0.02%)
County: Contra Costa County, CA
Estimated zip code population in 2017: 560

Houses and condos: 274
Renter-occupied apartments: 21
% of renters here:

8%
State:

45%
March 2019 cost of living index in zip code 94528: 121.4 (high, U.S. average is 100)

Land area: 2.3 sq. mi.
Water area: 0.0 sq. mi.
Population density: 239 people per square mile 
 
 (very low).

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Real estate property taxes paid for housing units in 2017:
This zip code:

0.4% ($6,792)
California:

0.7% ($3,729)
Median real estate property taxes paid for housing units with no mortgage in 2017: $5,690 (0.3%)

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Males: 302  (54.0%)
Females: 257  (46.0%)

For population 25 years and over in 94528:

  • High school or higher: 101.6%
  • Bachelor's degree or higher: 68.4%
  • Graduate or professional degree: 32.8%

For population 15 years and over in 94528:

  • Never married: 5.6%
  • Now married: 62.6%
  • Separated: 3.7%
  • Widowed: 12.6%
  • Divorced: 15.6%

Zip code 94528 compared to state average:

  • Median household income significantly below state average.
  • Median house value significantly above state average.
  • Unemployed percentage significantly below state average.
  • Black race population percentage significantly below state average.
  • Hispanic race population percentage significantly below state average.
  • Median age significantly above state average.
  • Foreign-born population percentage significantly below state average.
  • Renting percentage significantly below state average.
  • Length of stay since moving in significantly above state average.
  • Number of rooms per house significantly above state average.
  • Number of college students significantly below state average.
  • Percentage of population with a bachelor's degree or higher significantly above state average.
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Data:
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Based on 2000-2016 data
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123
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100% urban population.

Estimated median house/condo value in 2017: $1,812,771
94528:

$1,812,771
California:

$509,400
Median resident age:
This zip code:

71.4 years
California median age:

36.5 years
Average household size:
This zip code:

2.1 people
California:

3.0 people

Averages for the 2004 tax year for zip code 94528, filed in 2005:

Average Adjusted Gross Income (AGI) in 2004: $364,932 (Individual Income Tax Returns)
Here:

$364,932
State:

$58,600

Salary/wage: $210,022 (reported on 66.4% of returns)
Here:

$210,022
State:

$49,455
(% of AGI for various income ranges: 52.5% for AGIs $10k-25k, 50.3% for AGIs $25k-50k, 43.6% for AGIs $50k-75k, 32.4% for AGIs $75k-100k, 37.0% for AGIs over 100k)

Taxable interest for individuals: $17,025 (reported on 74.1% of returns)
This zip code:

$17,025
California:

$2,365
(% of AGI for various income ranges: 9.6% for AGIs $10k-25k, 2.1% for AGIs $25k-50k, 1.9% for AGIs $50k-75k, 8.2% for AGIs $75k-100k, 3.3% for AGIs over 100k)

Taxable dividends: $18,142 (reported on 71.2% of returns)
Here:

$18,142
State:

$4,746
(% of AGI for various income ranges: 10.0% for AGIs $10k-25k, 9.8% for AGIs $25k-50k, 9.6% for AGIs $50k-75k, 5.2% for AGIs $75k-100k, 3.3% for AGIs over 100k)

Net capital gain/loss: +$200,714 (reported on 66.1% of returns)
Here:

+$200,714
State:

+$23,418
(% of AGI for various income ranges: -4.4% for AGIs $10k-25k, -0.5% for AGIs $25k-50k, 7.7% for AGIs $50k-75k, -1.3% for AGIs $75k-100k, 37.0% for AGIs over 100k)

Profit/loss from business: +$62,250 (reported on 22.8% of returns)
Here:

+$62,250
State:

+$16,826
(% of AGI for various income ranges: 16.2% for AGIs $10k-25k, 21.5% for AGIs $50k-75k, 3.6% for AGIs over 100k)

IRA payment deduction: $3,636 (reported on 2.0% of returns)
94528:

$3,636
California:

$3,192

Self-employed pension: $24,070 (reported on 7.9% of returns)
Here:

$24,070
California:

$17,688

Total itemized deductions: $98,072 (18% of AGI, reported on 66.4% of returns)
Here:

$98,072
State:

$28,113

Here:

17.8% of AGI
State:

25.3% of AGI
(% of AGI for various income ranges: 46.9% for AGIs $25k-50k, 44.4% for AGIs $50k-75k, 38.6% for AGIs $75k-100k, 16.5% for AGIs over 100k)

Charity contributions deductions: $11,660 (2% of AGI, reported on 63.1% of returns)
Here:

$11,660
State:

$3,923

Here:

2.0% of AGI
State:

3.3% of AGI
(% of AGI for various income ranges: 2.8% for AGIs $25k-50k, 4.5% for AGIs $50k-75k, 3.1% for AGIs $75k-100k, 1.9% for AGIs over 100k)

Total tax: $88,607 (reported on 83.1% of returns)
94528:

$88,607
State:

$10,761
(% of AGI for various income ranges: 6.5% for AGIs $10k-25k, 7.5% for AGIs $25k-50k, 8.9% for AGIs $50k-75k, 9.3% for AGIs $75k-100k, 20.2% for AGIs over 100k)


Percentage of individuals using paid preparers for their 2004 taxes: 76.1%
Here:

76%
State:

66%
(% for various income ranges: 65.5% for AGIs below $10k, 65.0% for AGIs $10k-25k, 53.8% for AGIs $25k-50k, 77.8% for AGIs $50k-75k, 67.7% for AGIs $75k-100k, 87.2% for AGIs over 100k)

Nearest zip codes: 94526, 94506, 94507, 94598, 94517, 94582.
Diablo Zip Code Map

Percentage of family households:
This zip code:

7.6%
California:

49.9%
Percentage of households with unmarried partners:
This zip code:

25.7%
California:

6.6%
No gay or lesbian households reported

Household received Food Stamps/SNAP in the past 12 months: 0
Household did not receive Food Stamps/SNAP in the past 12 months: 275


Women who did not have a birth in the past 12 months: 35 (34 now married, 0 unmarried)


Housing units in zip code 94528 with a mortgage: 30 (10 home equity loan)
Houses without a mortgage: 224

Median monthly owner costs for units without a mortgage: $1,341

Median number of rooms in houses and condos:
Here:

7.6
State:

6.0
  • Notable locations in this zip code not listed on our city pages

  • Click to draw/clear zip code borders
  • Notable locations in zip code 94528: Live Oak Camp (A), Diablo Country Club (B). Display/hide their locations on the map

    Reservoir: Black Hills Reservoir (A). Display/hide its location on the map

Year house built
  • Year house built (houses)
  • 02014 or later
  • 02010 to 2013
  • 122000 to 2009
  • 01990 to 1999
  • 01980 to 1989
  • 1491970 to 1979
  • 511960 to 1969
  • 171950 to 1959
  • 01940 to 1949
  • 401939 or earlier
Owner-occupied Renter-occupied
Bedrooms in owner-occupied houses and condos in Diablo, CA (94528)
  • Bedrooms in owner-occupied houses and condos in Diablo, CA (94528)
  • 0no bedroom
  • 01 bedroom
  • 172 bedrooms
  • 1753 bedrooms
  • 1174 bedrooms
  • 05+ bedrooms
Bedrooms in renter-occupied apartments in Diablo, CA (94528)
  • Bedrooms in renter-occupied apartments in Diablo, CA (94528)
  • 0no bedroom
  • 181 bedroom
  • 02 bedrooms
  • 03 bedrooms
  • 04 bedrooms
  • 05+ bedrooms
Owner-occupied Renter-occupied
Cars and other vehicles available in Diablo, CA (94528) in owner-occupied houses/condos
  • Cars and other vehicles available in Diablo, CA (94528) in owner-occupied houses/condos
  • 0no vehicle
  • 491 vehicle
  • 1792 vehicles
  • 603 vehicles
  • 204 vehicles
  • 05+ vehicles
Cars and other vehicles available in Diablo, CA (94528) in renter-occupied apartments
  • Cars and other vehicles available in Diablo, CA (94528) in renter-occupied apartments
  • 0no vehicle
  • 01 vehicle
  • 192 vehicles
  • 03 vehicles
  • 04 vehicles
  • 05+ vehicles

  • Zip code 94528 household income distribution in 2017

  • Zip code 94528 household income distribution in 2017
  • 68$45,000 to $49,999
  • 39$50,000 to $59,999
  • 21$60,000 to $74,999
  • 19$75,000 to $99,999
  • 53$125,000 to $149,999
  • 78$200,000 or more
Estimated median house or condo value in 2017: $1,812,771
94528:

$1,812,771
California:

$509,400
Lower value quartile - upper value quartile: $1,377,282 - $2,192,117

Mean price in 2017:

Detached houses: $1,842,809
Here:

$1,842,809
State:

$697,940
Owners and renters by unit type in zip code 94528
Breakdown of mean house values by ages of householders

Housing units in structures:

  • One, detached: 273
  • Travel time to work (commute) in zip code 94528

  • Travel time to work (commute) in zip code 94528
  • 305 to 9 minutes
  • 2130 to 34 minutes
  • 2145 to 59 minutes
  • 4060 to 89 minutes

Percentage of zip code residents living and working in this county: 26.1%

Household type by relationship:

Households: 560
  • In family households: 381 (52 male householders, 111 female householders)
    163 spouses, 52 children (1 natural, 1 adopted, 1 stepchildren), 0 grandchildren, 0 brothers or sisters, 0 parents, 0 other relatives, 0 non-relatives
  • In nonfamily households: 179 (109 male householders (39 living alone)), 0 female householders (0 living alone)), 70 nonrelatives

Size of family households: 144 2-persons, 20 4-persons

Size of nonfamily households: 38 1-person, 71 2-persons

21 married couples with children.
0 single-parent households ().

103.2% of residents of 94528 zip code speak English at home.

Foreign born population: 22 (4.0%)
(100.0% of them are naturalized citizens)
This zip code:

4.0%
Whole state:

26.9%
Most common places of birth for foreign-born residents
  • 100%England
Most common first ancestries reported in 94528
  • 35%Irish
  • 23%Portuguese
  • 10%Northern European
  • 7%American
  • 7%Scottish
  • 7%English
  • 6%Scotch-Irish
Year of entry for the foreign-born population
  • Year of entry for the foreign-born population
  • 02010 or later
  • 02000 to 2009
  • 01990 to 1999
  • 20Before 1990
Most commonly used house heating fuel
  • 92.5%Utility gas
  • 7.8%Wood

Place of birth for U.S.-born residents:

  • This state: 363
  • Northeast: 21
  • Midwest: 71
  • West: 81

100% of the 94528 zip code residents lived in the same house 1 year ago.

Private vs. public school enrollment:

Students in private schools in grades 1 to 8 (elementary and middle school):
Here:

0.0%
California:

8.6%
Students in private schools in grades 9 to 12 (high school):
Here:

0.0%
California:

8.1%
Educational Attainment in 2017
School Enrollment by Level of School in 2017
Class of Workers in 2017

Top industries in this zip code by the number of employees in 2005:

  • Arts, Entertainment, and Recreation: Golf Courses and Country Clubs (100-249 employees: 1 establishment)
  • Health Care and Social Assistance: Child Day Care Services (20-49: 1)
  • Wholesale Trade: Other Grocery and Related Products Merchant Wholesalers (10-19: 1, 1-4: 1)
  • Other Services (except Public Administration): All Other Personal Services (10-19: 1)
  • Educational Services: Sports and Recreation Instruction (10-19: 1)
  • Construction: Plumbing, Heating, and Air-Conditioning Contractors (5-9: 1)
  • Health Care and Social Assistance: Residential Mental Retardation Facilities (5-9: 1)
  • Real Estate and Rental and Leasing: Offices of Real Estate Agents and Brokers (1-4: 3)
  • Professional, Scientific, and Technical Services: Public Relations Agencies (1-4: 1)
  • Educational Services: Professional and Management Development Training (1-4: 1)

Most common first names in zip code 94528 among deceased individuals
NameCountLived (average)
William1174.6 years
Frances673.3 years
Helen588.8 years
John573.6 years
Robert584.0 years
Donald475.7 years
George478.2 years
Margaret486.2 years
Mary487.0 years
Mildred489.0 years
Most common last names in zip code 94528 among deceased individuals
Last nameCountLived (average)
Denning378.3 years
Coats390.0 years
Helfrich372.7 years
Huenink384.9 years
White392.3 years
Hale265.5 years
Bennett269.9 years
Miller287.0 years
Jensen280.5 years
Jacobs278.5 years
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