What is population of ellensburg?

As an AI language model, I don't have access to live data, but according to the United States Census Bureau's estimate in 2019, the population of Ellensburg, Washington is approximately 20,670 people. It is the county seat of Kittitas County and home to Central Washington University. The city has a diversified economy, including agriculture, healthcare, education, and tourism. It is also known for its outdoor recreational opportunities, such as hiking, skiing, and fishing. Ellensburg is located in the center of the state, about 110 miles east of Seattle, and is one of the fastest-growing areas in Washington state.