Turner Valley was a town in the Calgary Metropolitan Region of Alberta, Canada within the Town of Diamond Valley. It is on Highway 22, 3 km (1.9 mi) west of Black Diamond and approximately 60 km (37 mi) southwest of Calgary. It was named after Robert and John Turner who settled in the area in 1886.

Diamond Valley is a town in the Calgary Metropolitan Region of Alberta, Canada within Foothills County. It is at the intersection of Highway 22 and Highway 7. It was established through the provincially approved amalgamation of the former towns of Black Diamond and Turner Valley on January 1, 2023.