What are the Hamilton, Indiana Zip Codes for 2020, 2019Primary Zip Codes for HamiltonZip CodePrimary CitySecondary City46742HamiltonHamilton, Alvarado, Circle Park, Clarks Landing, Cold Springs, Forest Park Beach, Island Park, Oakwood, Oakwood Shores, Otsego, Penn Park, Russels PointCities sharing Zip Codes with HamiltonZip CodePrimary CitySecondary CityMore Information46742HamiltonAlvarado46742HamiltonCircle Park46742HamiltonClarks Landing46742HamiltonCold Springs46742HamiltonForest Park Beach46742HamiltonIsland Park46742HamiltonOakwood46742HamiltonOakwood Shores46742HamiltonOtsego46742HamiltonPenn Park46742HamiltonRussels PointAdvertisements