Now here’s something to brag about Lake Oswego: the tony Portland suburb leads Oregon in total brainpower, based on a formula devised by the Business Journals’ On Numbers blog. On Numbers rated local brainpower by using raw 2009 data from the U.S. Census Bureau’s five-year American Community Survey. Each place’s score was based on its percentage of adults (25 or older) at each level of a five-rung educational ladder:

• Dropped out before high school graduation • Stopped at high school diploma • Stopped at associate degree or attended college but stopped without any degree • Stopped at bachelor’s degree • Earned graduate degree and, or professional degree

The point value of a specific rung was determined by the relative earning power of people at that level, based on Census Bureau research.

Nearly 67 percent of Lake Oswego residents 25 and older have earned a diploma, while the comparable national figure is just 27.5 percent. More than 28 percent of Lake Oswego residents have earned post-graduate degrees of some sort.

The Business Journal system gives Lake Oswego a brainpower index of 25.883, putting it 341st out of 14,214 places nationwide.

West Haven-Sylvan came in second in Oregon at 23.470, ranking it No. 482. Third was Cedar Mill at 23.049 ranking it at No. 511.

Portland Business Journal by Erik Siemers, November 18, 2011, 2:50pm PST