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ONI Main: 503-823-4519
City/County Info: 503-823-4000
1221 SW 4th Ave, Suite 110, Portland, OR 97204
Markham is a neighborhood in the Southwest section of Portland, Oregon. Markham is bordered by Multnomah and South Burlingame on the north, Marshall Park on the east, Arnold Creek on the south, and West Portland Park on the west.