The 28th State Senate District is part of Kent County and includes: Ada Twp, Algoma Twp, Alpine Twp, Bowne Twp, Byron Twp, Caledonia Twp, Cannon Twp, Cedar Springs city, Courtland Twp, East Grand Rapids city, Gaines Twp, Grand Rapids Twp, Nelson Twp, Oakfield Twp, Plainfield Twp, Rockford city, Solon Twp, Spencer Twp, Tyrone Twp, Walker city and Wyoming city.