The MAX Orange Line is a light rail service in Portland, Oregon, United States, operated by TriMet as part of the MAX Light Rail system. It connects Portland City Center, Portland State University (PSU), Southeast Portland, Milwaukie, and Oak Grove. The line serves 17 stations from Union Station/Northwest 5th & Glisan to Southeast Park Avenue and runs for 201⁄2 hours daily with a minimum headway of 15 minutes during most of the day. It averaged 3,480 daily weekday riders in September 2020.