delÂ·eÂ·teÂ·riÂ·ous. adj. Having a harmful effect; injurious: the deleterious effects of smoking.
Portage Info. Portage, Michigan is located in Kalamazoo County. Zip codes in Portage, MI include 49081, 49002, and 49024. The median home price in Portage is $188,900 which is roughly $101/per square foot. More Portage information.
Grand Traverse County is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 86,986. The county seat is Traverse City. According to the United States Census Bureau, it is estimated that the population of Grand Traverse County in July 2015 was 91,636.