Portage is a city in Kalamazoo County in the U.S. state of Michigan. The population was 46,292 in the 2010 census. It is the smaller of the two main cities included in the Kalamazoo-Portage Metropolitan Statistical Area, which has a population of 326,589 as of 2010. Portage is known for its Pharmaceutical manufacturing and celery agriculture. On February 19th 2021, the President of the United States Joe Biden visited Portage to commemorate the production of the Pfizer Vaccine.