1850 Atlas
| Name | What | Place | Pop | Other |
| Cosgrove Hall | PO | Union Co, PA | ||
| Coshocton | PV, CH | Coshocton Co, OH | 850 | seat of justice, water by Walhonding, Tuscarawas & Muskingunt rivers |
| Cossawago | T | Crawford Co, PA | ||
| Cote Sans Dessein | PV | Callaway Co, MO | water by Missouri river | |
| Cotitle | PO | Rapides parish, LA | ||
| Cotoma | PO | Montgomery Co, AL | ||
| Cotosa | PO | Walker Co, GA | ||
| Cottage | PO | Cattaraugus Co, NY | ||
| Cottage | PO | Montgomery Co, MD | ||
| Cottage | PO | Huntingdon Co, PA | ||
| Cottage Grove | PO | Dane Co, WI | ||
| Cottage Grove | PO | Union Co, IN | ||
| Cottage Hill | PO | Du Page Co, IL | ||
| Cottage Hill | PO | Lauderdale Co, TN | ||
| Cottage Hill | PO | St Joseph Co, IN | ||
| Cottage Home | PO | Harford Co, MD | ||
| Cottage Home | PO | Lincoln Co, NC | ||
| Cottleville | PO | St Charles Co, MO | ||
| Cotton Gin | PO | Freestone Co, TX | ||
| Cotton Gin Port | PV | Monroe Co, MS | water by Tombigbee river | |
| Cotton Grove | PO | Davidson Co, NC | ||
| Cotton Grove | PO | Madison Co, TN | ||
| Cotton Grove | PO | Poutotoc Co, MS | ||
| Cotton Grove | PO | Wapello Co, IA | ||
| Cotton Hill | PO | Randolph Co, GA | ||
| Cotton Plant | PO | Tippah Co, MO | ||
| Cotton Plant | PO | Rusk Co, TX | ||
| Cotton Ridge | PO | Itawamba Co, MS | ||
| Cotton Valley | PO | Macon Co, AL | ||
| Cottonville | PO | Marshall Co, AL | ||
| Cottonville | PO | Jackson Co, IA | ||
| Cottonwood | PO | Christian Co, KY | ||
| Cottonwood Grove | PO | Bond Co, IL | ||
| Cottrelville | PT | St Clair Co, MI | 913 | |
| Cotuit | PV | Barnstable Co, MA | ||
| Cotuit Post | PO | Barnstable Co, MA | ||
| Coulson's Mill | PO | Linn Co, MO | ||
| Coulter's Store | PO | Macon Co, MO | ||
| Coultersville | PO | Butler Co, PA | ||
| Council Bend | PO | Crittenden Co, AR | ||
| Council Bluff | PO | Pottawatamie Co, IA | ||
| Council Hill | PO | Jo Daviess Co, IL | ||
| Countsville | PO | Lexington dist, SC | ||
| County Line | PO | Niagara Co, NY | ||
| County Line | PO | Davie Co, NC | ||
| County Line | PO | Campbell Co, GA | ||
| County Line | PO | Newton Co, MS | ||
| Coursenville | V | Stillwater twp, Sussex Co, NJ | ||
| Court-Hill | PO | Talladega Co, AL | ||
| Court-House | PO | Franklin Co, AL | ||
| Courtland | PV | Lawrence Co, AR | ||
| Courtland | PO | Columbia Co, WI | ||
| Courtwright | V | Bloom twp, Fairfield Co, OH | ||
| Courtwright's Mills | PO | Iroquise Co, IL | ||
| Coushattee Chute | PO | Natchitoches parish, LA | ||
| Cove | PO | Shelby Co, AL | ||
| Cove | PO | Polk Co, AR | ||
| Cove Creek | PO | Benton Co, AL | ||
| Coventry | PT | Orleans Co, VT | 867 | water by Barton & Black rivers |
| Coventry | T | Grafton Co, NH | water by Wild Amonoosuck river & Oliverian brook | |
| Coventry | PT | Tolland Co, CT | 1,984 | water by Willimanic & Hop rivers |
| Coventry | T | Chester Co, PA | water by Tioga river | |
| Coventry | PT | Kent Co, RI | 3,620 | water by Flat river& south branch of Pawtuxwent |
| Coventry | PT | Chenango Co, NY | 1,677 | water by Harper's & Kelsey's creeks |
| Coventry | not listed | Summit Co, OH | 1,299 | |
| Coventryville | PV | Coventry twp, Chenango Co, NY | ||
| Covert | PT | Seneca Co, NY | 2,253 | water by tributaries of Cayuga lake |
| Covesville | PV | Albemarle Co, VA | ||
| Covesville | PO | Northumberland twp, Saratoga Co, NY | ||
| Covesville | PO | Monroe Co, PA | ||
| Covington | PT | Wyoming Co, NY | 1,385 | |
| Covington | T | Clearfield Co, PA | ||
| Covington | PV | Covington twp, Tioga Co, PA | 448 | water by tributaries of Tioga creek |
| Covington | T | Luzerne Co, PA | 650 | water by Lehigh river |
| Covington | PV, CH | Alleghany Co, VA | water by Jackson's river | |
| Covington | PV | Richmond Co, NC | ||
| Covington | PV, CH | Newton Co, GA | seat of justice, water by Yellow river | |
| Covington | PV, CH | St Tammany parish, LA | seat of justice, water by Boug Fallier | |
| Covington | PV | Tipton Co, TN | water by branch of Big Hutchy river | |
| Covington | City, PV | Kenton Co, KY | water by Ohio river & Licking creek | |
| Covington | PV | Newbury twp, Miami Co, OH | water by Stillwater river | |
| Covington | PV, CH | Fountain Co, IN | seat of justice, water by Wabash river | |
| Cowan | T | Wayne Co, MO | ||
| Cowan's Ford | PO | Mecklenburg Co, NC | ||
| Cowansville | PO | Rowan Co, NC | ||
| Cowansville | PO | Armstrong Co, PA | ||
| Cow Creek | PO | Saline Co, MO | ||
| Cowdersport | PV, CH | Potter Co, PA | seat of justice, water by Alleghany river | |
| Cowikee | PO | Barbour Co, AL | ||
| Cowlesville | PO | Bennington twp, Wyoming Co, NY | ||
| Cowpen Branch | PO | Barnwell dist, SC | ||
| Cowpens | PO | Spartanburgh dist, SC | ||
| Cowper Hill | PO | Robeson Co, NC | ||
| Cowskin | PO | Ozark Co, MO | ||
| Coxsackie | PT | Greene Co, NY | 3,741 | water by Hudson river |
| Coxes' | PO | Bullitt Co, KY | ||
| Cox's Mills | PO | Randolph Co, NC | ||
| Cox's Mills | PO | Gilmer Co, VA | ||
| Cox's Mills | PO | Wayne Co, IN | ||
| Cox's Store | PO | Washington Co, TN | ||
| Coxville | PO | De Kalb Co, AL | ||
| Coylee | PO | Monroe Co, TN | ||
| Coyleyville | PO | Butler Co, PA | ||
| Cozby | PO | Hamilton Co, TN | ||
| Crab Bottom | PO | Highland Co, VA | ||
| Crab Orchard | PO | Wythe Co, VA | ||
| Crab Orchard | PV | Lincoln Co, KY | ||
| Crab Orchard | PO | Ray Co, MO | ||
| Crab Tree | PO | Haywood Co, NC | ||
| Cracker's Neck | PO | Greene Co, GA | ||
| Crafton | V | Pittsylvania Co, VA | ||
| Craftsbury | PT | Orleans Co, VT | 1,223 | water by Black river & branch of Lamoille |
| Craftsville | PO | Elbert Co, GA | ||
| Craig | PT | Switzerland Co, IN | ||
| Craig's Creek | PO | Botetourt Co, VA | ||
| Craigsville | PO | Blooming Grove Twp, Orange Co, NY | ||
| Crain's Creek | PO | Moore Co, NC | ||
| Crain's Corners | PO | Warren twp, Herkimer Co, NY | ||
| Crainsville | PO | Hardeman Co, TN | ||
| Cranberry | PV | Middlesex Co, NJ | water by Cranberry brook | |
| Cranberry | T | Butler Co, PA | 2,256 | water by Glade river, Breakneck & Brush creeks |
| Cranberry | T | Crawford Co, OH | 1,042 | |
| Cranberry | PT | Venango Co, PA | 1,317 | water by Alleghany river |
| Cranberry | PO | Allen Co, OH | ||
| Cranberry Creek | PO | Mayfield twp, Fulton Co, NY | ||
| Cranberry Forge | PO | Watauga Co, NC | ||
| Cranberry Isles | PO | Hancock Co, ME | ||
| Cranberry Plains | PO | Carroll Co, VA | ||
| Cranberry Prairie | PO | Mercer Co, OH | ||
| Crane Creek | PO | Barry Co, MO | ||
| Crane's Forge | PO | Assumption parish, LA | ||
| Cranesville | PO | Amsterdam twp, Montgomery Co, NY | ||
| Cranesville | PO | Paulding Co, OH | ||
| Cranesville | PV | Daviess Co, MO | ||
| Cranesville | PO | Essex Co, NJ | ||
| Cranston | T | Providence Co, RI | 4,311 | water by Pawtuxet & Powshasset rivers |
| Crary's Mills | PO | St Lawrence Co, NY | ||
| Crater's Mills | PO | Iredell Co, NC | ||
| Crawford | PT | Orange Co, NY | 1,912 | water by Shawangunk river |
| Crawford | T | Washington Co, ME | 324 | |
| Crawford | T | Coshocton Co, OH | 1,552 | |
| Crawford | PT | Wyandott Co, OH | 1,306 | |
| Crawford | T | Buchanan Co, MO | 969 | |
| Crawford | V | Estill Co, KY | water by north fork Kentucky river | |
| Crawford | PV, CH | Russell Co, AL | seat of justice | |
| Crawford's Cove | PO | St Clair Co, AL | ||
| Crawford's House | PO | Coos Co, NH | ||
| Crawford's Mills | PO | Westmoreland Co, PA | ||
| Crawford's Seminary | PO | Quapaw Nation Co, MO | ||
| Crawfordsville | PV, CH | Talliaferro Co, GA | seat of justice, water by Sugar Creek | |
| Crawfordsville | PO | Washington Co, IA | ||
| Crawfordsville | PO | Spartanburg dist, SC | ||
| Craytonville | PV | Anderson dist, SC |