Mill Creek Lake near Walla Walla-
Mill Creek Lake near Walla Walla
Walla Walla, Washington (Wikipedia) Walla Walla is a city in Walla Walla County, Washington, where it is the largest city and county seat. It had a population of 34,060 at the 2020 census, estimated to have decreased to 33,927 as of 2021. The population of the city and its two suburbs, the town of College Place and unincorporated Walla Walla East, is about 45,000.