1850 Atlas
| Name | What | Place | Pop | Other |
| Willoughby | PT | Lake Co, OH | 2,081 | seat of Willoughby University |
| Willow Creek | PO | Marion dist, SC | ||
| Willow Creek | PO | Lee Co, IL | ||
| Willow Creek | PO | Marquette Co, WI | ||
| Willow Dale | PO | Trumbull Co, OH | ||
| Willow Fork | PT | Morgan Co, MO | ||
| Willow Grove | PV | Moreland twp, Montgomery Co, PA | ||
| Willow Grove | PO | Sumter dist, SC | ||
| Willow Grove | PO | Coweta Co, GA | ||
| Willow Grove | PO | Sumner Co, TN | ||
| Willow Hill | PO | Jasper Co, IL | ||
| Willow Island | PO | Wood Co, VA | ||
| Willow River | PO | St Clair Co, WI | ||
| Willow Spring | PO | Russell Co, VA | ||
| Willow Spring | PO | Claiborne Co, MS | ||
| Willow Springs | PO | Iowa Co, WI | ||
| Willow Street | PO | Lancaster Co, PA | ||
| Willsborough | PT | Essex Co, NY | 1,932 | water by Bouquet river |
| Willsborough | T | Tioga Co, PA | ||
| Wills | PT | Guernsey Co, OH | 2,216 | |
| Wills' Creek | PO | Coshocton Co, OH | ||
| Wills' Point | PO | Benton Co, TN | ||
| Willseyville | PO | Candor twp, Tioga Co, NY | ||
| Willshire | PT, CH | Van Wert Co, OH | 1,073 | seat of justice, water by St Mary's river |
| Wilmington | PT | Windham Co, VT | 1,372 | water by Deerfield river, at confluence of its east & west branches |
| Wilmington | PT | Middlesex Co, MA | 874 | water by tributaries of Peabody's river |
| Wilmington | PT | Essex Co, NY | 1,216 | water by Saranac river & west branch of Au Sable river |
| Wilmington | City | New Castle Co, DE | 13,979 | seat of justice, water by Christiana creek & Brandywine river |
| Wilmington | PO | Fluvanna Co, VA | water by Rivanna river | |
| Wilmington | PV | New Hanover Co, NC | 7,264 | seat of justice, water by Cape Fear river |
| Wilmington | PV, CH | Clinton Co, OH | 1,238 | seat of justice, water by Todd's fork of Little Miami river |
| Wilmington | PV | Dearborn Co, IN | 287 | |
| Wilmington | PV | Will Co, IL | 1,346 | |
| Wilmington | PO | Union Co, AR | ||
| Wilmore | PV | Cambria Co, PA | ||
| Wilmot | PT | Merrimack Co, NH | 1,272 | water by Tributaries of Blackwater river |
| Wilmot | PO | Boone Co, IL | ||
| Wilmot | PO | Kenosha Co, WI | ||
| Wilmot | PO | Noble Co, IN | ||
| Wilmot Flat | PO | Merrimack Co, NH | ||
| Wilmurt | PT | Herkimer Co, NY | 112 | |
| Wilna | PT | Jefferson Co, NY | 2,993 | water by Indian & Black rivers |
| Wilna | PV | Houston Co, GA | ||
| Wilson | PT | Piscataquis Co, ME | 813 | water by tributary of Piscataquis river |
| Wilson | PT | Niagara Co, NY | 2,955 | water by Howell's & Tuscarora creeks, Lake Ontario |
| Wilson | T | Audrain Co, MO | ||
| Wilson | PO | Edgecomb Co, NC | ||
| Wilson's | PO | Anderson Co, TN | ||
| Wilson's | PO | Tyler Co, TX | ||
| Wilson's Creek | PO | Graves Co, KY | ||
| Wilson's Creek | PO | Abbeville dist, SC | ||
| Wilson's Creek | PO | Knox Co, IN | ||
| Wilson's Mills | PO | Oxford Co, ME | ||
| Wilson's Mills | PO | Venango Co, PA | ||
| Wilson's Station | PO | Clinton Co, OH | ||
| Wilsonville | PV | Highland Co, VA | ||
| Wilsonville | PV | Shelby Co, AL | ||
| Wilsonville | PV | Spencer Co, KY | ||
| Wilsonville | PO | Cocke Co, TN | ||
| Wilton | PT | Franklin Co, ME | 1,909 | water by tributaries of Sandy river |
| Wilton | PT | Hillsborough Co, NH | 1,161 | water by Souhegan river |
| Wilton | PT | Fairfield Co, CT | 2,066 | water by Norwalk river |
| Wilton | PT | Saratoga Co, NY | 1,458 | water by tributary of Hudson river |
| Wilton | V | Granville Co, NC | ||
| Wilton | PO | Pike Co, AR | ||
| Wilt's Spur | PO | Patrick Co, VA | ||
| Winabago | PO | Bureau Co, IL | ||
| Winchendon | PT | Worcester Co, MA | 2,445 | water by tributaries of Miller's river |
| Winchester | PT | Cheshire Co, NH | 3,296 | water by Ashuelot river |
| Winchester | PT | Litchfield Co, CT | 2,179 | water by Mad river |
| Winchester | PV, CH | Frederick Co, VA | seat of justice, water by Abraham's branch of Opequan creek | |
| Winchester | PO | Macon Co, GA | ||
| Winchester | PT | Adams Co OH | 1,693 | water by a tributary of Brush creek |
| Winchester | PV | Madison twp, Guernsey Co, OH | ||
| Winchester | PV, CH | Clarke Co, KY | seat of justice | |
| Winchester | PV, CH | Franklin Co, TN | seat of justice, water by tributary of Elk river | |
| Winchester | PV, CH | Randolph Co, IN | seat of justice | |
| Winchester | PV | Van Buren Co, IA | ||
| Winchester | PV, CH | Wayne Co, MS | seat of justice, water by Chickasawha river | |
| Winchester | PV | Clarke Co, MO | ||
| Winchester | PO | Middlesex Co, MA | ||
| Winchester | PO | Union Co, NC | ||
| Winchester | PV, CH | Scott Co, IL | seat of justice | |
| Winchester Centre | PV | Winchester twp, Litchfield Co, CT | ||
| Winchester Springs | PO | Franklin Co, TN |