The College World Series, or CWS, is an annual June baseball tournament held in Omaha, Nebraska. The CWS is the culmination of the National Collegiate Athletic Association (NCAA) Division I Baseball Championship tournament -- featuring 64 teams in the first round -- which determines the NCAA Division I college baseball champion. The eight participating teams are split into two, four-team, double-elimination brackets, with the winners of each bracket playing in a best-of-three championship series.

Which city and state hosts the annual college world series? OK. Let's think. My stream of consciousness:
The relevant sentence in the passage is: The College World Series, or CWS, is an annual June baseball tournament held in Omaha, Nebraska. The answer is Omaha , Nebraska.