City of Gig Harbor 3510 Grandview St, Gig Harbor, WA98335 The City Center for Gig Harbor is located just minutes from Highway 16. The spacious building not only houses the city…More officials, but the Municipal Court and the Police Department are also located on the main floor. Mayor Chuck Hunter and seven city council members serve more than 7,500 people living in the City of Gig Harbor. There are about 3,300 housing units within the six square miles of land. The rest of the 66,000 people living on Gig Harbor and the Key Peninsula area falls in the hands of the Pierce County Council.