1850 Atlas
| Name | What | Place | Pop | Other |
| Readfield | PT | Kennebec Co, ME | 1,985 | water by head waters of Cobbesseconte river |
| Readfield | T | Osweg Co, NY | 752 | water by Salmon river |
| Readfield Depot | PO | Kennebec Co, ME | ||
| Reading | PT | Windsor Co, VT | 1,171 | water by tributaries of Queechee & Black rivers |
| Reading | PT | Middlesex Co, MA | 3,108 | water by Ipswich river |
| Reading | not listed | Fairfield Co, CT | see Redding | |
| Reading | PT | Steuben Co, NY | 1,434 | water by Seneca lake |
| Reading | PV, CH | Berks Co, PA | 15,790 | on Schuylkill river |
| Reading | T | Adams Co, PA | 1,252 | water by Conewago creek & Muddy run |
| Reading | PV | Sycamore twp, Hamilton Co, OH | ||
| Reading | T | Perry Co, OH | 2,744 | |
| Reading | PT | Hillsdale Co, MI | 956 | water by Little St Joseph's river |
| Reading | PO | Livingston Co, IL | ||
| Reading Centre | PO | Steuben Co, NY | ||
| Readington | PT | Hunterdon Co, NY | 2,836 | water by Rockaway creek & south branch Raritan river |
| Readsborough | PT | Bennington Co, VT | 857 | water by Deerfield river |
| Readyville | PV | Rutherford Co, TN | water by tributary of Cumberland river | |
| Reamstown | PV | Cocalico twp, Lancaster Co, PA | ||
| Reaville | PO | Hunterdon Co, NJ | ||
| Rebersburgh | PV | Miles twp, Centre Co, PA | ||
| Recklesstown | PV | Chesterfield twp, Burlington Co, NJ | ||
| Recovery | T | Mercer Co, OH | 59 | |
| Rector's Cross Roads | PO | Fauquier Co, VA | ||
| Rectortown | PV | Fauquier Co, VA | ||
| Red Bank | PV | Shrewsbury twp, Monmouth Co, NJ | water by Neversink river. pleasnt & popular resort during the summer season | |
| Red Bank | PT | Clarion Co, PA | water by Red Bank, Mahoning & Beaver creeks | |
| Red Bank | PO | Lawrence Co, AR | ||
| Red Bank Furnace | PO | Armstrong Co, PA | ||
| Red Banks | PO | Marshall Co, MS | ||
| Red Beach | PO | Washington Co, ME | ||
| Red Bluff | PO | Wythe Co, VA | ||
| Red Bluff | PO | Marion dist, SC | ||
| Red Boiling Springs | PO | Macon Co, TN | ||
| Red Bridge | PO | Ulster Co, NY | ||
| Red Bud | PO | Randolph Co, IL | ||
| Red Bud | PO | Ozark Co, MO | ||
| Red Clay | PO | Murray Co, GA | ||
| Red Creek | PO | Wayne Co, NY | ||
| Red Falls | PO | Greene Co, NY | ||
| Red Hill | PO | Kershaw dist, SC | ||
| Red Hill | PO | Murray Co, GA | ||
| Red Hill | PO | Marshall Co, AL | ||
| Red Hill | PO | Wayne Co, MS | ||
| Red Hill | PO | Grainger Co, TN | ||
| Red Hill | PO | Hardin Co, KY | ||
| Red Hook | PT | Dutchess Co, NY | 3,264 | water by Hudson river |
| Red House | PO | Charlotte Co, VA | ||
| Red House Shoals | PO | Mason Co, VA | ||
| Red Jacket | PO | Erie Co, NY | ||
| Red Land | PO | Pontotoc Co, MS | ||
| Red Land | PO | Bossier parish, LA | ||
| Red Level Springs | PO | Alleghany Co, PA | ||
| Red Lion | PV & hundred | New Castle Co, DE | 1,153 | water by Red Lion creek |
| Red Lion | PO | Clear Creek twp, Warren Co, OH | ||
| Red Man | PO | Jackson Co, AL | ||
| Red Mills | PO | Carmel twp, Putnam Co, NY | ||
| Red Mound | PO | Henderson Co, TN | ||
| Red Mountain | PO | Orange Co, NC | ||
| Red Oak | PO | Fayette Co, GA | ||
| Red Oak | PO | Navarro Co, TX | ||
| Red Oak Grove | PO | Barnwell dist, SC | ||
| Red Oak Grove | PO | Charlotte Co, VA | ||
| Red Oak Grove | PO | Burlington Co, NJ | ||
| Red Plains | PO | Surray Co, NC | ||
| Red River | T | Lafayette Co, AR | ||
| Red River | T | White Co, AR | ||
| Red River | PO | Robertson Co, TN | ||
| Red River Iron Works | PV | Estill Co, KY | water by Red river | |
| Red River Landing | PO | Point Coupee parish, LA | ||
| Red Rock | PO | Marion Co, IA | ||
| Red Rock | PO | Upshur Co, TX | ||
| Red Shoals | PO | Stokes Co, NC | ||
| Red Spring | PO | Polk Co, TN | ||
| Red Stone | PT | Fayette Co, PA | 1,287 | |
| Red Sulphur Springs | PV | Monroe Co, VA | water by Indian creek | |
| Red Sulphur Springs | PO | Hardin Co, TN | ||
| Redding | PT | Fairfield Co, CT | 1,734 | water by Saugatuck & Norwalk rivers |
| Redding Bridge | PV | Redding twp, Fairfield Co, CT | ||
| Reddington | PV | Jackson Co, IN | 1,325 | |
| Redfield | PT | Oswego Co, NY | 752 | water by Salmon river |
| Redford | PT | Wayne Co, MI | 1,645 | water by Powers' creek & north branch of Rouge river |
| Redford | PV | Saranac twp, Clinton Co, NY | ||
| Redwood | PV | Alexandria twp, Jefferson Co, NY | water byButterfield lake | |
| Redwood | PO | Grainger Co, TN | ||
| Reed | PT | Seneca Co, OH | 1,494 | |
| Reed Creek | PO | Randolph Co, NC | ||
| Reed Island | not listed | Pulaski Co, VA | ||
| Reedsburgh | PO | Plain twp, Wayne Co, OH | ||
| Reedsburgh | PO | Sauk Co, WI | ||
| Reed's Corners | PO | Canandaigua twp, Ontario Co, NY | ||
| Reed's Creek | PO | Lawrence Co, AR | ||
| Reed's Ferry | PO | Hillsborough Co, NH | ||
| Reed's Grove | PO | Will Co, IL | ||
| Reed's Mills | PO | Vinton Co, OH | ||
| Reed's Settlement | PO | Panola Co, TX | ||
| Reedsville | PO | Mifflin Co, PA | ||
| Reedtown | PO | Seneca Co, OH | ||
| Reedy Branch | PO | Moore Co, NC | ||
| Reedy Creek | PO | Jefferson Co, GA | ||
| Reedy Creek | PO | Marion dist, SC | ||
| Reedy Ripple | PO | Wirt Co, VA | ||
| Reedyville | PO | Wirt Co, VA | ||
| Reedyville | PO | Cameron Co, TX | ||
| Reelfoot | PO | Obion Co, TN | ||
| Reelsville | PO | Putnam Co, IN | ||
| Reem's Creek | PO | Buncombe Co, NC | ||
| Reese's Mill | PO | Boone Co, IN |