What are the Westport Addn, Indiana Zip Codes for 2020, 2019Primary Zip Codes for Westport AddnZip CodePrimary CitySecondary City47304MuncieWestport Addn, Brewington Wds, Brewington Woods, Cammack, West Acres, Westport Addition,Cities sharing Zip Codes with Westport AddnZip CodePrimary CitySecondary CityMore Information47304MuncieBrewington Wds47304MuncieBrewington Woods47304MuncieCammack47304MuncieWest Acres47304MuncieWestport Addition47304MuncieWestport AddnAdvertisements