| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Pagancillo | city | La Rioja | Argentina | -29.54 | -68.10 | 4189 | 1072 |
| Paganzo | city | La Rioja | Argentina | -30.21 | -67.28 | 3349 | 0 |
| Pampa del Retamo | city | La Rioja | Argentina | -29.72 | -65.68 | 830 | 894 |
| Pasillios | city | La Rioja | Argentina | -28.39 | -69.13 | 12798 | 0 |
| Paso San Isidro | city | La Rioja | Argentina | -29.47 | -68.23 | 3599 | 0 |
| Paso de Isidro | city | La Rioja | Argentina | -29.47 | -68.23 | 3599 | 0 |
| Paso de Piedra | city | La Rioja | Argentina | -31.80 | -66.23 | 1669 | 0 |
| Pastillos | city | La Rioja | Argentina | -28.39 | -69.13 | 12798 | 0 |
| Pasto de Vina | city | La Rioja | Argentina | -28.83 | -68.62 | 9432 | 0 |
| Pastos Largos | city | La Rioja | Argentina | -28.57 | -69.13 | 12001 | 0 |
| Patquía | city | La Rioja | Argentina | -30.05 | -66.88 | 1669 | 2544 |
| Patquía Sur | city | La Rioja | Argentina | -30.17 | -66.95 | 1679 | 0 |
| Patquía Viejo | city | La Rioja | Argentina | -30.17 | -66.95 | 1679 | 0 |
| Pinchas | city | La Rioja | Argentina | -28.93 | -66.96 | 4370 | 709 |
| Pique | city | La Rioja | Argentina | -29.15 | -67.65 | 6709 | 745 |
| Pituil | city | La Rioja | Argentina | -28.57 | -67.45 | 4347 | 1134 |
| Plaza Vieja | city | La Rioja | Argentina | -28.95 | -67.52 | 5029 | 1785 |
| Portezuelo | city | La Rioja | Argentina | -30.84 | -66.70 | 2637 | 1639 |
| Portezuelo de Arce | city | La Rioja | Argentina | -31.90 | -66.35 | 1728 | 0 |
| Potrerillo | city | La Rioja | Argentina | -28.40 | -67.68 | 5396 | 345 |
| Potrero Grande | city | La Rioja | Argentina | -28.25 | -68.30 | 10068 | 0 |
| Potrero Viejo | city | La Rioja | Argentina | -29.05 | -68.45 | 7027 | 0 |
| Potrero de Santa Rita | city | La Rioja | Argentina | -28.45 | -67.92 | 10908 | 0 |
| Potrero de Vichigasta | city | La Rioja | Argentina | -29.50 | -67.63 | 6975 | 745 |
| Pozo Abandonado | city | La Rioja | Argentina | -31.34 | -65.82 | 830 | 8 |
| Pozo de Avila | city | La Rioja | Argentina | -29.37 | -66.79 | 1669 | 17110 |
| Pozo de Piedra | city | La Rioja | Argentina | -31.80 | -66.23 | 1669 | 0 |
| Pozo de las Palomas | city | La Rioja | Argentina | -29.93 | -66.50 | 1174 | 894 |
| Pozo del Quimilo | city | La Rioja | Argentina | -29.90 | -65.40 | 830 | 419 |
| Pozuelos | city | La Rioja | Argentina | -28.65 | -68.12 | 5370 | 0 |
| Pucha Pucha | city | La Rioja | Argentina | -28.35 | -69.18 | 12588 | 0 |
| Puerta de Arauco | city | La Rioja | Argentina | -28.82 | -66.67 | 2791 | 339 |
| Puerta del Cura | city | La Rioja | Argentina | -29.03 | -66.90 | 5029 | 2 |
| Puerto Alegre | city | La Rioja | Argentina | -29.44 | -67.91 | 5029 | 0 |
| Puerto Alegre | city | La Rioja | Argentina | -29.32 | -66.77 | 1669 | 6007 |
| Punta de la Calera | city | La Rioja | Argentina | -29.80 | -65.72 | 830 | 786 |
| Punta de los Llanos | city | La Rioja | Argentina | -30.15 | -66.55 | 1236 | 1537 |
| Punta del Arenal | city | La Rioja | Argentina | -29.32 | -66.18 | 1000 | 799 |
| Punta del Rio | city | La Rioja | Argentina | -29.22 | -66.43 | 1122 | 29 |