MI Postal Code The Michigan postal code is MI. This abbreviation has been used since the USPS first established official codes in October 1963. More Info > Gender Ratio Gender Ratio: 97 Men to 100 Women Male Population: 4,868,463 men Female Population: 5,041,414 women More Info ...
46356 (Lowell) 46360 (Michigan City) 46368 (Portage) 46371 (Rolling Prairie) 46373 (Saint John) 46375 (Schererville) 46382 (Union Mills) 46383 (Valparaiso) 46385 (Valparaiso) 46390 (Wanatah) 46391 (Westville) 46394 (Whiting) 46402 (Gary) 46403 (Gary) 46404 (Gary) 46405 (Lake Station) 464...