Government in Allison, IA Allison City Hall410 N Main StAllison, IA, 506023192672245City HallCity OfGovernment CityGovernment Offices Butler County Agriculture Department310 Allan StAllison, IA, 506023192672777City OfGovernment OfficesGrundy County Small Claims CrtIowa Department Of Human Services Hardin County Show MoreSee AlsoGovernment OfficesCommunity Services