| Greenock to Pottsville (Pennsylvania) | 3,284.02 mi (5,285.12 km) |
| Greenock to Poughkeepsie (New York) | 3,149.41 mi (5,068.49 km) |
| Greenock to Poulsbo (Washington) | 4,427.22 mi (7,124.93 km) |
| Greenock to Poway (California) | 5,122.81 mi (8,244.37 km) |
| Greenock to Powder Springs (Georgia) | 3,945.62 mi (6,349.87 km) |
| Greenock to Powell (Ohio) | 3,565.54 mi (5,738.18 km) |
| Greenock to Powell (Tennessee) | 3,808.86 mi (6,129.78 km) |
| Greenock to Prairie Ridge (Washington) | 4,448.83 mi (7,159.70 km) |
| Greenock to Prairie Village (Kansas) | 4,043.07 mi (6,506.69 km) |
| Greenock to Prairieville (Louisiana) | 4,369.19 mi (7,031.54 km) |
| Greenock to Prattville (Alabama) | 4,086.14 mi (6,576.01 km) |
| Greenock to Preakness (New Jersey) | 3,196.67 mi (5,144.54 km) |
| Greenock to Prescott (Arizona) | 4,885.83 mi (7,862.98 km) |
| Greenock to Prescott Valley (Arizona) | 4,880.94 mi (7,855.11 km) |
| Greenock to Prichard (Alabama) | 4,238.65 mi (6,821.44 km) |
