(CSU) Area Total 5.67 km^2 (2.19 sq mi) ^1 Population 5,791 (Jan. 2019)^[1] Density 87/km^2 (230/sq mi) Time zone UTC+1 (CET) Summer (DST) UTC-4 (EDT) ZIP codes 53530 Area code 318 FIPS code 09-67400 GNIS feature ID 1563041 Website ci.chippewa-falls.wi.us Chippewa Falls Chamber Building Downtown Official logo of the comune Belforte all'Isauro. Geography [change | change source] 1. ↑ kartabih