Places beginning with CA in Iowa, United States
- Cairo
- Calamus
- Caldwell Siding
- Caldwell, Township of
- Caledonia (historical)
- Caledonia, Township of
- Calhoun
- Calhoun County
- Calhoun, Township of
- Calhoun, Township of
- California Junction
- Callender
- Calmar
- Calmar, Township of
- Caloma
- Calumet
- Camanche
- Camanche, Township of
- Cambria
- Cambridge
- Cameron
- Cameron
- Cameron, Township of
- Campbell
- Camp Dodge
- Camp, Township of
- Canaan, Township of
- Canby
- Candlelight Trailer Court
- Canfield
- Canoe
- Canoe, Township of
- Canton
- Canton, Township of
- Cantril
- Capel, Township of
- Capitol Heights
- Carbon
- Carbon
- Carbondale
- Carl
- Carlisle
- Carlton Mobile Home Court
- Carlton, Township of
- Carl, Township of
- Carmel
- Carnarvon
- Carnes
- Carney
- Carney
- Carnforth
- Carpenter
- Carriage Place
- Carroll
- Carroll, City of
- Carroll Community Estates
- Carroll County
- Carrollton
- Carroll, Township of
- Carroll, Township of
- Carrville
- Carson
- Carson, Township of
- Carter Lake
- Cartersville
- Cascade
- Cascade, Township of
- Casey
- Casino Beach
- Cass
- Cass County
- Cass, Township of
- Cass, Township of
- Cass, Township of
- Cass, Township of
- Cass, Township of
- Cass, Township of
- Cass, Township of
- Cass, Township of
- Cass, Township of
- Cass, Township of
- Castalia
- Castana
- Castle Grove
- Castle Grove, Township of
- Cathedral Square
- Cattese