3940 Routes
- Pontoosuc Illinois -> Harris Minnesota
- Pontoosuc Illinois -> Tatum South Carolina
- Pontoria Minnesota -> Hazlettville Delaware
- Pontotoc Mississippi -> Wellsboro Pennsylvania
- Pontotoc Oklahoma -> Lake Hope State Park Ohio
- Pontotoc Texas -> Cassville West Virginia
- Pontotoc Texas -> Glen Lily
- Pontotoc Texas -> Pollard Flat California
- Pontotoc Texas -> West Concord Minnesota
- Pony Montana -> Arrowhead Beach North Carolina
- Pony Montana -> Snowden Montana
- Pony Montana -> Wilkesboro North Carolina
- Ponza Kentucky -> Centerville Ohio
- Ponza Kentucky -> Correctionville Iowa
- Poole Nebraska -> Marion Minnesota
- Poole Nebraska -> Norton Virginia
- Poole Nebraska -> Oak Leaf Texas
- Poole Nebraska -> Sprague River Oregon
- Poolesville Maryland -> Howland Virginia
- Poolesville Maryland -> Morgan Minnesota
- Poolesville Virginia -> Old River-winfree Texas
- Poolesville Virginia -> Searsboro Iowa
- Poolesville Virginia -> Summerhill Pennsylvania
- Pooleville Oklahoma -> Lacy-lakeview Texas
- Pooleville Oklahoma -> Mount Harmony Maryland
- Pooleville Oklahoma -> Seneca New Mexico
- Poolville New York -> Browntown Florida
- Poolville New York -> Iliff Colorado
- Poolville New York -> Midlothian Texas
- Poor Town North Carolina -> Summerfield North Carolina
- Pope -> Old Mines Missouri
- Pope -> Plympton Massachusetts
- Pope -> Roberts Wisconsin
- Pope Mississippi -> Elwood Indiana
- Pope Mississippi -> Vardaman Mississippi
- Popejoy Iowa -> Carnelian Bay California
- Popeville Kentucky -> Clear Lake Shores Texas
- Popeville Kentucky -> Fence Wisconsin
- Popeville Kentucky -> Viper Kentucky
- Poplar Arbor Church Georgia -> Independence Ohio
- Poplar Arbor Church Georgia -> Plant Harlee Branch Georgia
- Poplar Branch North Carolina -> Pekin North Carolina
- Poplar Camp Florida -> Baxley Georgia
- Poplar City Illinois -> Highfill Arkansas
- Poplar City Illinois -> Temple Texas
- Poplar Corner -> Allardt Tennesse
- Poplar Grove Illinois -> Davidsville Pennsylvania
- Poplar Grove Illinois -> Hiles Wisconsin
- Poplar Grove Illinois -> Inglis Florida
- Poplar Grove Illinois -> Williamson Iowa
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