I got the idea for this map from Lance Knobel of Berkeleyside, who posted a similar map last week. In the presidential race, no surprise, Barack Obama won every precinct by a large margin. Mitt Romney came in second in only 62 of 101 precincts, and tied with Jill Stein of the Green Party in an additional three precincts. Jill Stein came in second in 35 precincts.
On the map below, the intensity of the shading represents the overall percentage of the vote that went to candidates other than Barack Obama, the first place finisher. Besides Jill Stein and Mitt Romney, Roseanne Barr got 1% of the vote in more than half the precincts and Gary Johnson peaked at up to 4% in a few. Click on any precinct to see the breakdown of the vote.