Dimiao is located on the southern coast of the province. How it got its name is not known It is one of the oldest municipalities which had a population of 8,820 in 1897. This town used to occupy a large territory which included Valencia and Lila. Later, Valencia was separated from Dimiao because of increased population and Lila was made and independent municipality on January 1, 1915.
| Dimiao at a glance | |
| Population: | 14151 |
| Number of households: | 2708 |
| Land area: | 7713 ha |
| Number of barangays: | 35 |
| Distance from Tagbilaran: | 37 km |
| Barangay | Population | Households |
| Abihid | 413 | 70 |
| Alemania | 179 | 35 |
| Baguhan | 370 | 74 |
| Bakilid | 180 | 35 |
| Balbalan | 283 | 55 |
| Banban | 496 | 90 |
| Bauhugan | 304 | 57 |
| Bilisan | 153 | 28 |
| Cabagakian | 533 | 95 |
| Cabanbanan | 327 | 52 |
| Cadap-agan | 481 | 76 |
| Cambacol | 276 | 52 |
| Cambayaon | 330 | 66 |
| Canhayupon | 627 | 108 |
| Canlambong | 539 | 76 |
| Casingan | 217 | 48 |
| Catugasan | 268 | 50 |
| Datag | 200 | 35 |
| Guindaguitan | 457 | 96 |
| Guingoyuran | 446 | 80 |
| Ile | 245 | 49 |
| Lapsaon | 473 | 84 |
| Limokon Ilaod | 531 | 120 |
| Limokon Ilaya | 736 | 133 |
| Luyo | 846 | 159 |
| Malijao | 308 | 98 |
| Oac | 639 | 127 |
| Pagsa | 307 | 52 |
| Pangihawan | 169 | 35 |
| Puangyuta | 254 | 47 |
| Sawang | 441 | 94 |
| Tangohay | 654 | 139 |
| Taongon Cabatuan | 556 | 116 |
| Taongon Can-andam | 600 | 125 |
| Tawid Bitaog | 313 | 52 |
(Based on figures from the census of 2000)