Places beginning with CO in Oklahoma, United States
- Coal County
- Coal Creek
- Coal Creek Township
- Coal Creek, Township of
- Coalgate
- Coalton
- Cobalt Junction
- Cobb
- Cobb Township
- Cocklebur Flat
- Cody
- Cody
- Cogar
- Coil
- Colbert
- Colbert Township
- Colbert Township
- Colcord
- Cold Springs
- Coldwater, Township of
- Cole
- Coleman
- Collinsville
- Collinsville Township
- Colony
- Columbia, Township of
- Comanche
- Comanche County
- Commerce
- Compton
- Concho
- Connerville
- Connewango, Township of
- Conrad
- Conser
- Coodys Bluff
- Cook
- Cookietown
- Cookson
- Cookson Township
- Cooper
- Cooperton
- Cooper, Township of
- Cooper, Township of
- Copan
- Copeland
- Copic Slab
- Cora
- Coralea, Township of
- Corbett
- Cordell
- Cordell, Township of
- Corinne
- Corn
- Cornatzar
- Cornish
- Coronado, Township of
- Corral Crossing
- Corum
- Cottingham
- Cotton County
- Cotton Valley
- Cottonwood
- Cottonwood
- Council Hill
- Council House Township
- Counts
- Countyline
- Courtney
- Cove Acres
- Covington
- Cowden
- Cowden Junction
- Coweta
- Coweta Township
- Cowlington
- Cowlington Township
- Cox City
- Coxs Corner
- Coyle
- Coyle, Township of