On 3 January 1861, the village area of Florø (population: 846) was incorporated as a ladested (port town) by royal decree, which removed it from the rural municipality of Kinn. This left Kinn with 6,531 residents. In 1864, the northern district of the municipality was separated from the Kinn parish and became the new parish of Bremanger. Then, on 1 January 1866, Bremanger (population: 1,852) became a separate municipality. After the split, Kinn was left with 4,679 inhabitants. On 1 January 1923, the municipality of Kinn was divided into three separate municipalities: the western (island) area was Kinn (population: 2,508); the central (mostly mainland) area was Bru (population: 1,560); and the southeasternmost inland area was Eikefjord (population: 929).