The Regional District of Okanagan-Similkameen (RDOS) is in southern British Columbia, adjacent to the U.S. state of Washington. It is bounded by Fraser Valley Regional District to the west, Thompson-Nicola Regional District and Regional District of Central Okanagan to the north, Regional District of Kootenay Boundary to the east, and by Okanogan County, Washington to the south. At the 2011 census the population was 80,742. The district covers a land area of 10,413.44 km2. The administrative offices are in the City of Penticton.

Population history

Municipalities

RDOS comprises six municipalities and nine rural electoral areas designated Electoral areas A - I. The municipalities of RDOS are Penticton, Summerland, Osoyoos, Oliver, Princeton, and Keremeos.

Demographics

As a census division in the 2021 Census of Population conducted by Statistics Canada, the Regional District of Okanagan-Similkameen had a population of 90,178 living in 40,981 of its 46,436 total private dwellings, a change of NaN% from its 2016 population of 83,022. With a land area of 10406.64 km2, it had a population density of in 2021.

Ethnicity

Language

According to the 2011 Census, 84.43% of Okanagan-Similkameen's population have English as mother tongue; German is the mother tongue of 2.99% of the population, followed by Punjabi (2.86%), French (1.90%), Portuguese (1.06%), Dutch (0.80%), Ukrainian (0.42%), Hungarian (0.41%), Spanish (0.41%), and Italian (0.39%).

Electoral areas