Gresham, Oregon is 2.3 times larger than Berkeley, California.
Area: 27 km2 calculated
Berkeley is a city on the east shore of San Francisco Bay in northern Alameda County, California, that is named after the eighteenth-century bishop and philosopher George Berkeley. Wikipedia
Area: 61 km2 calculated
Gresham is a city located in Multnomah County, Oregon, United States immediately east of Portland. It was named after the American Civil War general, and Postmaster General, Walter Quinton Gresham. The population was 105,594 at the 2010 census, making Gresham the fourth largest city in Oregon. Wikipedia