Dale Kooyenga was born and raised in a blue-collar family on the south side of Chicago. He is the oldest of four siblings and graduated from Chicago Christian High School.

Dale obtained an AA degree from Moraine Valley Community College in Illinois where he also played basketball. He was subsequently recruited by Lakeland College in Sheboygan to play NCAA Division II basketball and went on to graduate from Lakeland College with honors. In 2007, Dale obtained his MBA from Marquette University.

In 2001, Dale moved to Milwaukee and became a Certified Public Accountant (CPA). He was employed at a large international accounting firm where he worked with some of Wisconsin’s largest manufacturing, health care, financial services and not-for-profit organizations.

As a direct result of 9/11, Dale joined the United States Army alongside his two brothers. He attended the Army’s basic training, Officer Candidate School, and the Military Intelligence Officer Course. Upon graduation Dale was assigned to the Army's Special Operation Command. In 2008, he was called up to service in Iraq and deployed to Baghdad with the 432nd Civil Affairs Battalion. Dale was awarded a Bronze Star for his service.

Following his deployment in Iraq, Dale was assigned to support the Defense Intelligence Agency before assuming two Company Command positions. Most recently, Dale was given the honor of commanding Wisconsin's first U.S. Army Reserve Counterintelligence/HUMINT Company.

In 2010, Dale was elected to represent the 14th Assembly District in the Wisconsin State Assembly. He was sworn into office on January 3, 2011 and was re-elected in 2012, 2014 and 2016. In 2018, Dale ran for the Wisconsin State Senate and was elected in November to represent the 5th Senate District. He was sworn into office in January of 2019.

Dale is most proud of his roles as a husband and father. Dale and his wife Jennifer live in Brookfield with their four children Grant, Taylor, Quin and Ada, where they attend Brookfield Christian Reformed Church.