Many times the City of Salem tried to annex the growing community adjacent to its city limits. Beginning in 1964, a number of Keizer residents tried to convince the people of Keizer that it would be cheaper and better to form their own city. It was not until November 2, 1982 when, with the support of the nearby unincorporated community of Clear Lake, residents voted to make Keizer a city.
Where Keizer Bottom once was is now Keizer Rapids Park a brand new public park in Keizer Oregon, attractions will include dog park, playground, boat in camping, nature trails, sport courts. More info at Keizer.org
According to the United States Census Bureau, the city has a total area of 7.4 square miles (19.1 km²), of which, 7.2 square miles (18.7 km²) of it is land and 0.2 square miles (0.4 km²) of it (2.03%) is water.
There were 12,110 households out of which 35.6% had children under the age of 18 living with them, 55.8% were married couples living together, 11.2% had a female householder with no husband present, and 28.6% were non-families. 22.4% of all households were made up of individuals and 8.4% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.07.
In the city the population was spread out with 27.7% under the age of 18, 8.2% from 18 to 24, 30.1% from 25 to 44, 21.9% from 45 to 64, and 12.2% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 94.3 males. For every 100 females age 18 and over, there were 91.2 males.
The median income for a household in the city was $45,052, and the median income for a family was $49,977. Males had a median income of $37,138 versus $27,032 for females. The per capita income for the city was $20,119. About 6.2% of families and 9.3% of the population were below the poverty line, including 11.7% of those under age 18 and 7.6% of those age 65 or over.