John Kooiker

John J. Kooiker (born June 28, 1946) is an American politician who represented Iowa's Fourth District in the state House of Representatives from 2015 to 2017.

Early life and career
Kooiker is one of seven children born to John and Johanna Kooiker (née Vermeer). He graduated from Western Christian High School in 1964, as class valedictorian. He attended Calvin College, then Kansas State University, where he earned a masters in Math Education and a Ph.D. Kooiker served in the United States Army during the Vietnam War. He left the army and began teaching math and physics at the Christian Academy in Japan in 1972. Kooiker returned to the United States in 1975, moving to Boyden, Iowa. He worked for the United States Postal Service as a letter carrier from 1977 to 2005.

Political career
Kooiker defeated Democrat John Bunstma and write-in candidate Dennis Wright, a former mayor of Hull, Iowa, in the special election called on January 6, 2015, after the November 2014 death of Dwayne Alons. He serves on the Labor, Local Government, Public Safety, and Veteran Affairs committees and co-chairs the Transportation, Infrastructure, and Capitals Appropriations Subcommittee. In October 2015, Kooiker stated that he would not seek a second term. He endorsed Skyler Wheeler, who won the Republican primary for the Fourth District in June 2016.

Personal
He and his wife Sherry have four children. One of his sons, Sam first ran for the mayoralty of Rapid City, South Dakota in 2007, but lost. He ran again and won the office in 2011, serving until 2015. A daughter died of cancer in October 2007.