1850 Atlas
| Name | What | Place | Pop | Other |
| Paces | PO | Barren Co, KY | ||
| Pachitta | PO | Early Co, GA | ||
| Pacific | PO | Franklin Co, NC | ||
| Pack's Ferry | PO | Monroe Co, VA | ||
| Packsville | PO | Sumter dist, SC | ||
| Pacolett Mills | PO | Union dist, SC | ||
| Pactolus | PO | Pitt Co, NC | ||
| Paddock's Grove | PO | Madison Co, IL | ||
| Paddy Mills | PO | Shenandoah Co, VA | ||
| Paddy's Run | PO | Morgan twp, Butler Co, OH | ||
| Paducah | PV, CH | McCracken Co, KY | 2,488 | seat of justice, water by Ohio river at confluence of the Tennessee river |
| Page's Corners | not listed | Herkimer Co, NY | ||
| Pageville | PV | Newberry dist, SC | ||
| Pageville | PO | Barren Co, KY | ||
| Paincourtville | PV | Assumption parish, LA | ||
| Paine's Hollow | PO | German Flats twp, Herkimer Co, NY | ||
| Paine's Point | PO | Ogle Co, IL | ||
| Painesville | PV | Amelia Co, VA | ||
| Painesville | PV, CH | Lake Co, OH | 3,128 | seat of justice, water by Grand river & Lake Erie |
| Painesville | PO | Chittenden Co, VT | ||
| Paint | T | Fayette Co, OH | 1,253 | |
| Paint | PV | Clarion Co, PA | 610 | |
| Paint | T | Somerset Co, PA | 878 | |
| Paint | T | Holmes Co, OH | 1,618 | water by tributary of Sugar creek |
| Paint | T | Highland Co, OH | 2,678 | |
| Paint | T | Ross Co, OH | 1,123 | water by Paint & Buckskin creeks |
| Paint | T | Wayne Co, OH | 1,627 | |
| Paint Creek | PO | Kanawha Co, VA | ||
| Paint Creek | PO | Washtenaw Co, MI | ||
| Paint Lick | PO | Garrard Co, KY | ||
| Paint Rock | PO | Allamachee Co, IA | ||
| Paint Rock | PO | Cocke Co, TN | ||
| Painted Post | PT | Steuben Co, NY | 4,372 | |
| Painted Post | PV | Erwin twp, Steuben Co, NY | water by Chemung river at confluence of Conhocton & Tioga rivers | |
| Paintersville | PO | Greene Co, OH | ||
| Paintsville | PV, CH | Johnson Co, KY | seat of justice | |
| Pakwaukee | PO | Marquette Co, WI | ||
| Palatine | PT | Montgomery Co, NY | 2,586 | water by Garoga creek & Mohawk river |
| Palatine | PO | Marion Co, VA | ||
| Palatine | PO | Cook Co, IL | ||
| Palatine Bridge | PV | Palatine twp, Montgomery Co, NY | water by Mohawk river | |
| Palenville | PO | Greene Co, NY | ||
| Palermo | PT | Waldo Co, ME | 1,659 | |
| Palermo | PT | Oswego Co, NY | 2,053 | water by Catfish creek |
| Palestine | PO | Greenbrier Co, VA | ||
| Palestine | PO | Hickman Co, TN | ||
| Palestine | PO | Benton Co, AL | ||
| Palestine | PO | Washington parish, LA | ||
| Palestine | PV | Darby twp, Pickaway Co, OH | water by Deer creek | |
| Palestine | PV | Kosciusko Co, IN | ||
| Palestine | PV, CH | Crawford Co, IL | seat of justice | |
| Palestine | PO | Adams Co, MS | ||
| Palestine | V | Cooper Co, MO | ||
| Palestine | PO | Anderson Co, TX | ||
| Pall Mall | PO | Fentress Co, TN | ||
| Palmer | PT | Hampden Co, MA | 3,974 | water by Ware & Swift rivers |
| Palmer's | PO | Polk Co, TX | ||
| Palmer's Springs | PO | Mecklenburgh Co, VA | ||
| Palmer's Store | PO | Weakley Co, TN | ||
| Palmer's Tavern | PO | Prince George's Co, MD | ||
| Palmetto | PO | Pontotoc Co, MS | ||
| Palmetto | PO | Coweta Co, GA | ||
| Palmetto | PO | Lawrence dist, SC | ||
| Palmyra | PT | Somerset Co, ME | 1,625 | water by Sebasticook river |
| Palmyra | PT | Wayne Co, NY | 3,893 | water by Mud creek & Erie canal |
| Palmyra | PO | Burlington Co, NJ | ||
| Palmyra | PV | Londonberry twp, Lebanon Co, PA | 286 | |
| Palmyra | PV, CH | Fluvanna Co, VA | seat of justice, water by Rivanna river | |
| Palmyra | T | Pike Co, PA | 447 | |
| Palmyra | PV | Halifax Co, NC | water by Roanoke river | |
| Palmyra | PV | Lee Co, GA | ||
| Palmyra | PV | Montgomery Co, TN | ||
| Palmyra | T | Wayne Co, PA | 2,015 | |
| Palmyra | PT | Portage Co, OH | 1,093 | |
| Palmyra | PV | Harrison Co, IN | ||
| Palmyra | PT | Lenawee Co, MI | 1,098 | water by Raisin river & Bear creek |
| Palmyra | PV, CH | Marion Co, MO | 1,284 | seat of justice |
| Palmyra | PO | Warren Co, MS | ||
| Palmyra | PO | Jefferson Co, WI | ||
| Palmyra | PO | Simpson Co, KY | ||
| Palo | PO | Linn Co, IA | ||
| Palo | PO | Fayette Co, AL | ||
| Palo Alto | Jasper Co, GA | |||
| Palo Alto | Highland Co, VA | |||
| Palo Alto | Lawrence Co, TN | |||
| Palo Alto | Louisa Co, IA | |||
| Palo Alto | Hamilton Co, IL | |||
| Palo Alto | Onslow Co, NC | |||
| Palo Alto | Chicksaw Co, MS | |||
| Palona | Greenville dist, SC | |||
| Palos | Miami Co, IN | |||
| Palos | Cook Co, IL | |||
| Pamelia | Jefferson Co, NY | 2,528 | water by Perch & Black rivers | |
| Pamelia Four Corners | Pamelia twp, Jefferson Co, NY | |||
| Panama | PV | Harmony twp, Chautauque Co, NY | ||
| Panama | PO | Defiance Co, OH | ||
| Pancoastburgh | PO | Fayette Co, OH | ||
| Pandora | PO | Johnson Co, TN | ||
| Panola | PV, CH | Panola Co, MS | seat of justice, water by Tallahatchee river | |
| Pantego | PO | Beaufort Co, NC | ||
| Panther | PO | Polk Co, AR | ||
| Panther Creek | PO | Surry Co, NC | ||
| Panther Creek | PO | Cass Co, IL | ||
| Panther Creek | PO | Clayton Co, IA | ||
| Panther Fork | PO | Greenville dist, SC | ||
| Panther Springs | PO | Jefferson Co, TN | ||
| Panther's Gap | PO | Rockbridge Co, VA | ||
| Pantherville | PO | De Kalb Co, GA | ||
| Panton | PT | Addison Co, VT | 559 | water by Lake Champlain |
| Pan Yan | PO | Racine Co, WI | ||
| Paoli | PV, CH | Orange Co, IN | 461 | seat of justice, water by Lick creek |
| Paoli | PV | Fredypain twp, Chester Co, PA | ||
| Papaw Grove | PO | Lee Co, IL | ||
| Paper Mill Village | PV | Cheshire Co, NH | ||
| Paper Mills | PO | Baltimore Co, MD | ||
| Papertown | PO | Cumberland Co, PA | ||
| Paperville | PV | Sullivan Co, TN | water by tributary of Holston river | |
| Papinsville | PO | Bates Co, MO | ||
| Paraclifta | PV, CH | Sevier Co, AR | seat of justice, water by Little river | |
| Paradise | PT | Strasburgh twp, Lancaster Co, PA | 1,828 | |
| Paradise | T | York Co, PA | ||
| Paradise | PO | Rockingham Co, VA | ||
| Paradise Furnace | PO | Huntingdon Co, PA | ||
| Paradise Valley | PO | Monroe Co, PA | ||
| Paran City | PO | Marion Co, IA | ||
| Parcher's Corners | PO | Fulton Co, OH | ||
| Parderville | PO | Columbia Co, WI | ||
| Parham's Landing | PO | Catahoola parish, LA | ||
| Parham's Store | PO | Sussex Co, VA | ||
| Paris | PT, CH | Oxford Co, ME | 682 | seat of justice, water by Little Androscoggin river |
| Paris | PT | Oneida Co, NY | 4,283 | water by Sadaquada creek |
| Paris | PO | Washignton Co, PA | ||
| Paris | PV | Fauquier Co, VA | ||
| Paris | PV, CH | Henry Co, TN | seat of justice, water by tributary of Little Sandy river | |
| Paris | PV, CH | Bourbon Co, KY | 384 | seat of justice, water by south fork of Licking river |
| Paris | OT | Stark Co, OH | 2,135 | water by Sandy creek |
| Paris | PT | Portage Co, OH | 1,018 | |
| Paris | T | Union Co, OH | 982 | |
| Paris | PV | Jennings Co, IN | water by south fork of Muscatack creek | |
| Paris | PV, CH | Edgar Co, IL | seat of justice | |
| Paris | PV, CH | Monroe Co, MO | seat of justice, water by Middle fork of Salt river | |
| Paris | PO | Kent Co, MI | ||
| Paris | PO | Coweta Co, GA | ||
| Paris | PO | Lafayette Co, MS | ||
| Paris | PO | Lamar Co, TX | ||
| Paris | PO | Kenozha Co, WI | ||
| Parish | PT | Otsego Co, NY | 1,799 | water by Salmon creek |
| Parishville | PT | St Lawrence Co, NY | 2,132 | water by St Regis, Racket, Grass & Oswegatchie rivers |
| Parisville | PO | Paris twp, Portage Co, OH |