Bay Area Census Metropolitan Transportation Commission (MTC)Association of Bay Area Governments (ABAG)
HomeContact
CaliforniaBay AreaCountiesCitiesTracts/Blocks
TransportationHistorical DataMapsLinksFAQ
 
City of Clayton
Contra Costa County
 

Decennial Census data
      1970-1990  |   2000-2010
            In excel: 1970-2010

1970 Census 1980 Census 1990 Census
TOTAL POPULATION 1,385 100.0% TOTAL POPULATION 4,325 100.0% TOTAL POPULATION 7,317 100.0%
  
RACE RACE RACE
White 1,346 97.2% White 3,997 92.4% White 6,824 93.3%
Negro 12 0.9% Black 48 1.1% Black 49 0.7%
Indian   American Indian, Eskimo, and Aleut 6 0.1% American Indian, Eskimo, or Aleut 5 0.1%
Eskimo 0 0.0% Eskimo 0 0.0%
Aleut 0 0.0% Aleut 0 0.0%
Asian and Pacific Islander 241 5.6% Asian or Pacific Islander 363 5.0%
Asian 363 5.0%
Japanese   Japanese 42 1.0% Japanese 87 1.2%
Chinese   Chinese 43 1.0% Chinese 92 1.3%
Filipino   Filipino 60 1.4% Filipino 102 1.4%
Korean 0 0.0% Korean 6 0.1%
Asian Indian 64 1.5% Asian Indian 45 0.6%
Vietnamese 0 0.0% Vietnamese 11 0.2%
Cambodian 0 0.0%
Hmong 0 0.0%
Laotian 0 0.0%
Thai 0 0.0%
Other Asian 20 0.3%
Pacific Islander 0 0.0%
Polynesian 0 0.0%
Hawaiian 7 0.2% Hawaiian 0 0.0%
Samoan 0 0.0% Samoan 0 0.0%
Tongan 0 0.0%
Other Polynesian 0 0.0%
Guamanian 0 0.0% Micronesian -- Guamanian 0 0.0%
Micronesian -- Other 0 0.0%
Melanesian 0 0.0%
Other Asian and Pacific Islander 25 0.6% Pacific Islander Not Specified 0 0.0%
All other   Race, n.e.c. 33 0.8% Other Race 76 1.0%
  
PERSONS OF SPANISH ORIGIN OR DESCENT   SPANISH ORIGIN 205 4.7% TOTAL HISPANIC 382 5.2%
  
SEX SEX SEX
Male 661 47.7% Male   Male 3,572 48.8%
Female 724 52.3% Female   Female 3,745 51.2%
 
AGE AGE AGE
Under 5 years   Under 5 years   Under 5 years 459 6.3%
5 to 19 years   5 to 19 years   5 to 17 years 1,704 23.3%
20 to 64 years   20 to 64 years   18 to 64 years 4,773 65.2%
65 years and over   65 years and over   65 years and over 381 5.2%
Median age 23.1 X Median age 32.0 X Median age 37.0 X
  
HOUSEHOLDS HOUSEHOLDS HOUSEHOLDS
Head of household 348 100.0% Total households 1,329 100.0% Households 2,337 100.0%
Families   Families 1,231 92.6% Total families 2,094 89.6%
With own children under 18 years   With own children under 18 years 755 56.8% With own children under 18 years 1,154 49.4%
Persons per household 3.98 X Persons per household 3.25 X Persons per household 3.13 X
Persons per family   Persons per family 3.31 X
  
INCOME AND POVERTY IN 1969 INCOME AND POVERTY IN 1979 INCOME AND POVERTY IN 1989
Income of families and unrelated individuals   Median household income 35,067 X Median household income 69,710 X
Median family income 35,851 X Median family income 71,197 X
Income of persons   Per capita income 11,381 X Per capita income 24,833 X
Less than poverty level   Below poverty level 2.2% Below poverty level 1.0%
  
COMMUTING TO WORK COMMUTING TO WORK
Mean travel time to work (minutes) 33.6 X Mean minutes traveled to work 33.5 X
Mean travel time to work for workers traveling 45 or more minutes  
  
MEANS OF TRANSPORTATION TO WORK MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over 2,050 100.0% Workers 16 years and over 3,958 100.0%
Private vehicle 1,742 85.0% Car, truck, or van 3,462 87.5%
Drive alone 1,391 67.9% Drove alone 3,067 77.5%
   
Carpool 351 17.1% Carpooled 395 10.0%
     
Public transportation 162 7.9% Public transportation 280 7.1%
Bus or streetcar   Bus or trolley bus 17 0.4%
  Streetcar or trolley car 0 0.0%
Subway or elevated train   Subway or elevated 227 5.7%
Railroad   Railroad 36 0.9%
  Ferryboat 0 0.0%
Taxicab   Taxicab 0 0.0%
Motorcycle   Motorcycle 9 0.2%
Bicycle   Bicycle 5 0.1%
Walked only 21 1.0% Walked 35 0.9%
Other means 81 4.0% Other means 34 0.9%
Worked at home 44 2.1% Working at home 133 3.4%
Best printed in landscape format.
 
                Source: 1970 Census, 1980 Census, 1990 Census

Decennial Census data

Decennial Census data
      1970-1990  |   2000-2010
            In excel: 1970-2010
                  All Census Bureau data



California   |    Bay Area   |    Counties   |    Cities  |    Tracts/Blocks   |    Transportation

Historical Data   |    Maps   |    Links   |    FAQ   |    Home   |    Contact   |    MTC   |    ABAG

MTC-ABAG Library, 375 Beale Street, Suite 800, San Francisco, CA 94105
415-778-5236, library@mtc.ca.gov