The Seattle Times has a cool map of the August 6 primary election results, showing the precincts in which the contenders came out on top. This is a generalization, and individual precincts show anomalies, but in short: Ed Murray prevailed in more traditionally conservative or wealthier parts of town (Magnolia, Queen Anne, Blue Ridge, Laurelhurst, Broadmoor, North Capitol Hill) and West Seattle (which loved the same deep-bore tunnel that Mayor Mike McGinn opposed). Meanwhile, McGinn prevailed in more diverse, staunchly liberal, or working-class parts of town (Central District, South Capitol Hill, Aurora corridor, Wallingford).

Check it out.