Government in Holy Cross, IA Dubuque County Library938 Church StHoly Cross, IA, 520535638702082AscsGovernment OfficesLibrariesLibraryPublic LibraryUnemployment Office Holy Cross City Hall938 Church StHoly Cross, IA, 520535638702475City HallCity OfCrossingGovernment City Show MoreSee AlsoGovernment Offices