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.
Sponsored Topics. Portage is a city in and the county seat of Columbia County, Wisconsin, United States. The population was 10,662 at the 2010 census making it the largest city in Columbia County. The city is part of the Madison Metropolitan Statistical Area.