Poorer areas = lower attainment
more affluent = higher attainment.

The chart can be misleading. If you scroll the chart up to LA and look at the West side, you kind of think whoa, that’s a lot of blue for advanced degrees.

IF you check the census and compare Rancho Santa Fe, Irvine and Santa Monica you realize the Santa Monica is actually the lowest of the three for advance degree percentage. In fact, RSF, being low density, blows both out with full ten percentage points higher ratio of advance degrees.

The chart, IMHO, really needs to be corrected for population density.