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1970
<br />
<br /> TABLE IV-1
<br /> POPULATION AND HOUSING UNITS
<br />
<br />1975 1980 1985 1986
<br />
<br />1970 - 1990
<br />1987 1988
<br />
<br />1989
<br />
<br />1990
<br />
<br />Popula- 18,328 31,667
<br />tion
<br />
<br />Persons/ 3.66 3.35
<br />Household
<br />
<br />House- 5,004 9,400
<br />holds
<br />
<br />Vacancy 9.38 3.72
<br /> Rate
<br />
<br />Total 5,522 9,763
<br />Housing Units
<br />
<br />Single n/a n/a
<br /> Family Units-Detached (1)
<br />
<br />Single n/a n/a
<br /> Family Units-Attached (2)
<br />
<br />Single 4,837 7,882
<br /> Family (88%) (80%)
<br /> Units-Total (%)
<br />
<br />Multiple
<br /> Family(3)
<br /> Units
<br />
<br />35,160 40,740 45,371
<br />
<br />Mobile n/a
<br />Homes
<br />
<br />46,346 48,482
<br />
<br />Multiple Family
<br /> Units
<br />Total (%) (12%)
<br />
<br />51,956
<br />
<br />55,266
<br />
<br />3.107 3.068 3.059 3.040 2.989 2.907 2.856
<br />
<br />11,317 13,249 14,800 15,212 16,186 17,835 19,315
<br />
<br />3.08 5.33 3.26 4.21 3.33 2.83 2.40
<br />
<br />11,665 13,995 15,299 15,879 16,743 18,355 19,790
<br />
<br />8,558 10,155 10,828 11,213 11,581 12,229 12,623
<br />
<br />824 1,113 1,403 2,547 1,649 1,706 1,781
<br />
<br />9,382 11,268 12,231 12,760 13,230 13,935 14,404
<br />(80%) (80%) (80%) (80%) (79%) (76%) (73%)
<br />
<br />685 1,881 2,283 2,379 2,723 2,776 3,169 4,077 5,040
<br />
<br />n/a n/a 348 345 343 344 343 346
<br />
<br /> 2,727 3,068 3,119 3,513 4,420 5,386
<br />(20%) (20%) (20%) (20%) (20%) (21%) (24%) (27%)
<br />
<br />Sources:
<br />
<br />California Department of Finance, Summary Report:
<br />Alameda County Controlled Population Estimates, 1980 - 1990
<br />and Population Estimates for California Cities and Counties
<br />1970 - 1980; U.S. Bureau of the Census, 1970 and 1980
<br />Census of Population and Housing; California Department
<br />of Finance, 1975 Special Census for Pleasanton. All
<br />estimates are as of January 1 of each year except 1970,
<br />1975 and 1980 which are as of April 1.
<br />
<br />(1) Detached Single Family:
<br />
<br />(2) Attached Single Family:
<br />
<br />(3) Multiple Family:
<br />
<br /> Detached single family homes have open
<br />space on all four sides
<br />
<br />Attached single family homes have common
<br />walls from foundation to ceiling which form property
<br />lines
<br />
<br />Multiple family structures contain two or more units on a
<br />single parcel
<br />
<br />IV-33
<br />
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