It is also sometimes classed as being part of the Okanagan region, which results from shared regional district and other administrative boundaries and names. The term "Similkameen District" may also historically refer to the Similkameen Division Yale Land District, which also includes Osoyoos and the Boundary Country to Osoyoos' east.
The Similkameen District is sometimes considered part of the broader Okanagan region due to shared administrative boundaries. Historically, the term "Similkameen District" may have also referred to a specific land district that included Osoyoos and surrounding areas.