1850 Atlas
| Name | What | Place | Pop | Other |
| Watauga Bend | PO | Washington Co, TN | ||
| Watensaw | PO | Monroe Co, AR | ||
| Waterborough | PT | York Co, ME | 1,985 | water by Little Ossipee river |
| Waterborough Centre | PO | Waterborough twp, York Co, ME | ||
| Waterbutgh | PO | Tompkins Co, NY | ||
| Waterbury | PT | Washington Co, VT | 2,352 | water by Onion & Waterbury rivers |
| Waterbury | PT | New Haven Co, CT | 5,137 | water by Naugatuck river |
| Waterford | PT | Oxford Co, ME | 1,448 | water by Crooked river |
| Waterford | PT | Caledonia Co, VT | 1,412 | water by Connecticut, Passumpsic & Moose rivers |
| Waterford | PT | New London Co, CT | 2,258 | water by Thames, Niantic & Jordan rivers, Long Island sound |
| Waterford | PT | Saratoga Co, NY | 2,683 | water by Mohawk & Hudson rivers, Champlain canal |
| Waterford | PT | Camden Co, NJ | 1,638 | water by Pensauken & Cooper's creeks |
| Waterford | PV | Erie Co, PA | 1,545 | water by Le Boeuf creek |
| Waterford | PV | Loudoun Co, VA | water by Kittoctan creek | |
| Waterford | PV | Marshall Co, MS | ||
| Waterford | PV | Gibson Co, TN | ||
| Waterford | PO | Spencer Co, KY | ||
| Waterford | PT | Washington Co, OH | 1,373 | water by Muskingum river |
| Waterford | PT | Oakland Co, MI | 1,086 | |
| Waterford | PO | Laporte Co, IN | ||
| Waterford | PV | Fulton Co, IL | ||
| Waterford | PO | Racine Co, WI | ||
| Waterford Centre | PO | Waterford twp, Oakland Co, MI | ||
| Waterford Works | PO | Waterford twp, Camden Co, NJ | ||
| Waterloo | PT, CH | Seneca Co, NY | 3,795 | seat of justice with Ovid, water by Seneca river, Seneca & Cayuga canal |
| Waterloo | PO | Sussex Co, NJ | ||
| Waterloo | PV | Lock twp, Juniata Co, PA | water by Tuscarora creek | |
| Waterloo | PO | Fauquier Co, VA | ||
| Waterloo | PV | Granville Co, NC | ||
| Waterloo | PV | Laurens dist, SC | ||
| Waterloo | PO | Lauderdale Co, AL | ||
| Waterloo | PV | Point Coupee parish, LA | water by Mississippi river | |
| Waterloo | PO | Pulaski Co, KY | ||
| Waterloo | PT | Athens Co, OH | 1,016 | water by Raccoon creek |
| Waterloo | PO | Lawrence Co, OH | ||
| Waterloo | PO | Jackson Co, MI | ||
| Waterloo | PT | Fayette Co, IN | 833 | |
| Waterloo | PV, CH | Monroe Co, IL | seat of justice | |
| Waterloo | PV, CH | Clark Co, MO | seat of justice | |
| Waterloo | PO | Jefferson Co, WI | ||
| Waterport | PO | Orleans Co, NY | ||
| Water Proof | PO | Tensas parish, LA | ||
| Water Street | PV | Morris twp, Huntington Co, PA | water by Juniata river | |
| Watertown | PT | Middlesex Co, MA | 2,837 | water by Charles river |
| Watertown | PT | Litchfield Co, CT | 1,533 | water by Steel's brook |
| Watertown | PT, CH | Jefferson Co, NY | 7,201 | seat of justice, water by Stony & Sandy creeks, Black river |
| Watertown | PT | Washington Co, OH | 1,1373 | water by Wolf creek |
| Watertown | PT | Jefferson Co, WI | water by Rock river | |
| Watervale | PV | Pompey twp, Onondaga Co, NY | ||
| Water Valley | PO | Hamburgh twp, Erie Co, NY | ||
| Water Valley | PO | Yallabusha Co, MS | ||
| Water Village | PV | Carroll Co, NH | ||
| Waterville | PT | Kennebec Co, ME | 3,966 | water by Kennebec river, seat of Waterville college |
| Waterville | T | Grafton Co, NH | 42 | |
| Waterville | PT | Lamoille Co, VT | 753 | water by north branch of Lamoille river |
| Waterville | PV | Sangerfield twp, Oneida Co, NY | water by tributary of Oriskany creek | |
| Waterville | PT | Lucas Co, OH | 958 | water by tributary of Maumee river |
| Waterville | PO | New Haven Co, CT | ||
| Waterville | PO | Lycoming Co, PA | ||
| Waterville | PO | Waukesha Co, WI | ||
| Watervliet | PT | Albany Co, NY | 4,882 | water by Mohawk & Hudson rivers, Erie & Champlain canals |
| Watervliet | PO | Berrien Co, MI | ||
| Watervliet Centre | PO | Watervliet twp, Albany Co, NY | ||
| Watkins | PO | Union Co, OH | ||
| Watkins | T | Crawford Co, MO | ||
| Walkinsville | PV | Clark Co, GA | water by Beaver Dam creek | |
| Watson | PT | Lewis Co, NY | 1,138 | water by Independence creek & Beaver river |
| Watson's Bridge | PO | Moore Co, NC | ||
| Watsontown | PV | Northumberland Co, PA | ||
| Wattsborough | PO | Lunenburgh Co, VA | ||
| Wattsburgh | PB | Erie Co, PA | 227 | water by French creek |
| Watts' Mills | PO | Westmoreland Co, PA | ||
| Watts' Mills | PO | Appanoose Co, IA | ||
| Wauhatchee | PO | Dade Co, GA | ||
| Waucousta | PO | Fond du Lac Co, WI | ||
| Wauhoo | PO | Vigo Co, IN | ||
| Waukau | PO | Winnebago Co, WI | ||
| Waukeenah | PO | Jefferson Co, FL | ||
| Waukegan | PO | Lake Co, IL | ||
| Waukesha | PV, CH | Waukesha Co, WI | seat of justice | |
| Wauksaik | PO | Cook Co, IL | ||
| Waupaka | PO | Marquette Co, WI | ||
| Waupun | PV | Fond du Lac Co, WI | ||
| Wausau | PO | Marathon Co, WI | ||
| Waushara | PV | Dodge Co, WI | ||
| Wautoma | PO | Marquette Co, WI | ||
| Wauwatosa | PO | Milwaukie Co, WI |