| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Op-Andel | city | Noord-Brabant | Netherlands | 51.79 | 5.05 | 3 | 14357 |
| Op-Aygem | city | Vlaanderen | Belgium | 50.90 | 3.93 | 127 | 33306 |
| Op-Velp | city | Vlaanderen | Belgium | 50.81 | 4.79 | 308 | 18621 |
| Op-Zeeland | city | Noord-Brabant | Netherlands | 51.70 | 5.67 | 62 | 29981 |
| Op-die-Berg | city | Western Cape | South Africa | -33.02 | 19.31 | 3435 | 1659 |