If you're looking to buy a house in Round Oak City, Michigan, you may be wondering how many people live in the community. Here's a quick breakdown of the area's population and steets. Berkley has a population of approximately 15,000 and a median annual home value of $225,000. The city is known for its community center and several neighborhood parks, and it also hosts an annual summer festival and Art Bash, which features a parade of new cars and vendors selling local merchandise. The event is attended by over 10,000 people each year.