Jasper County, Iowa Zip Codes by Population (2024)

The most populated Zip Code in Jasper County, Iowa is 50208, located in Newton. * 2024 populations estimated based on the latest ACS 5-year data.

Zip Code
City
Population
50208Newton20,339
50054Colfax3,099
50170Monroe2,874
50228Prairie City2,688
50028Baxter1,776
50135Kellogg1,658
50251Sully1,478
50153Lynnville852
50168Mingo831
50232Reasnor650
50137Killduff90
50127Ira0