| State Name | County Name | City |
|---|---|---|
| South Carolina | Anderson | Powdersville |
| Ohio | Delaware | Powell |
| Wyoming | Park | Powell |
| Vermont | Bennington | Pownal |
| Louisiana | St. Bernard | Poydras |
| Wisconsin | Crawford | Prairie du Chien |
| Wisconsin | Sauk | Prairie du Sac |
| Arkansas | Washington | Prairie Grove |
| Washington | Pierce | Prairie Heights |
| Washington | Pierce | Prairie Ridge |
| Texas | Waller | Prairie View |
| Kansas | Johnson | Prairie Village |
| Louisiana | Ascension | Prairieville |
| Kansas | Pratt | Pratt |
| Arkansas | Nevada | Prescott |
| Arizona | Yavapai | Prescott |
| Wisconsin | Pierce | Prescott |
| Arizona | Yavapai | Prescott Valley |
| Texas | Presidio | Presidio |
| Maine | Aroostook | Presque Isle |
| Connecticut | New London | Preston |
| Idaho | Franklin | Preston |
| Kentucky | Floyd | Prestonsburg |
| Florida | Bay | Pretty Bayou |
| Pennsylvania | Monroe | Price |
| Utah | Carbon | Price |
| Alabama | Morgan | Priceville |
| Alabama | Mobile | Prichard |
| Louisiana | Calcasieu | Prien |
| Texas | Cameron | Primera |
| Maryland | Calvert | Prince Frederick |
| Maryland | Somerset | Princess Anne |
| Florida | Miami-Dade | Princeton |
| Illinois | Bureau | Princeton |
| Indiana | Gibson | Princeton |
| Kentucky | Caldwell | Princeton |
| Massachusetts | Worcester | Princeton |
| Minnesota | Mille Lacs | Princeton |
| New Jersey | Mercer | Princeton |
| Texas | Collin | Princeton |
| West Virginia | Mercer | Princeton |
| New Jersey | Middlesex | Princeton Meadows |
| Oregon | Crook | Prineville |
| Minnesota | Scott | Prior Lake |
| Minnesota | St. Louis | Proctor |
| Texas | Hidalgo | Progreso |
| Pennsylvania | Dauphin | Progress |
| Florida | Hillsborough | Progress Village |
| Connecticut | New Haven | Prospect |
| Illinois | Cook | Prospect Heights |
| New Jersey | Passaic | Prospect Park |
| Pennsylvania | Delaware | Prospect Park |
| Texas | Collin | Prosper |
| Washington | Benton | Prosser |
| Kentucky | Webster | Providence |
| Pennsylvania | Lancaster | Providence |
| Rhode Island | Providence | Providence |
| Utah | Cache | Providence |
| Texas | Denton | Providence Village |
| Massachusetts | Barnstable | Provincetown |
| Utah | Utah | Provo |
| California | Monterey | Prunedale |
| Oklahoma | Mayes | Pryor Creek |
| Colorado | Pueblo | Pueblo |
| Colorado | Pueblo | Pueblo West |
| Puerto Rico | Cabo Rojo | Puerto Real |
| Hawaii | Kauai | Puhi |
| Hawaii | Maui | Pukalani |
| Tennessee | Giles | Pulaski |
| Virginia | Pulaski | Pulaski |
| Wisconsin | Brown | Pulaski |
| Washington | Whitman | Pullman |
| Florida | Charlotte | Punta Gorda |
| Puerto Rico | Humacao | Punta Santiago |
| Hawaii | Honolulu | Pupukea |
| Oklahoma | McClain | Purcell |
| Connecticut | Windham | Putnam |
| New York | Putnam | Putnam Lake |
| New York | Putnam | Putnam Valley |
| Washington | Pierce | Puyallup |
| Pennsylvania | Mercer | Pymatuning |
| Pennsylvania | Bucks | Quakertown |
| Virginia | Prince William | Quantico Base |
| Pennsylvania | Lancaster | Quarryville |
| California | Los Angeles | Quartz Hill |
| Arizona | La Paz | Quartzsite |
| Puerto Rico | Quebradillas | Quebradillas |
| Arizona | Maricopa | Queen Creek |
| New York | Queens | Queens |
| New York | Warren | Queensbury |
| Florida | Gadsden | Quincy |
| Illinois | Adams | Quincy |
| Pennsylvania | Franklin | Quincy |
| Washington | Grant | Quincy |
| Alabama | Autauga | Prattville |
| Kentucky | Jefferson | Prospect |
| Pennsylvania | Lawrence | Pulaski |
| Pennsylvania | Jefferson | Punxsutawney |
| Virginia | Loudoun | Purcellville |
| Massachusetts | Norfolk | Quincy |