ZIP Code 94528 — Diablo, California

The median home in 94528 is valued at more than $2,000,000 (the Census reporting ceiling) against a median household income of more than $250,000 (the Census reporting ceiling), a price-to-income ratio of at least 8.0. That is above the 6.7 median across the 1,558 California ZIP codes with published housing data, and well past the 3.0 ratio that marks an attainable market nationally, so buying here on a local median income requires substantial savings or a second income. Within Contra Costa County, 94528 ranks 34 of 40 ZIPs on affordability (1 = lowest ratio); the county median ratio is 6.8.

94528 ranks 1 of 1,558 statewide on median household income and 1 of 1,558 on median home value; its income is far above the $120,565 Contra Costa County median. 100% of households own their home, far above the 64% statewide ZIP median, making this a majority-owner ZIP. 73% of adults hold a bachelor's degree or higher, far above the 31% median, and the poverty rate is 17.1%, far above the 10.8% statewide ZIP median. Unemployment stands at 16.5%.

With 605 residents per square mile across 1.2 square miles of land, 94528 is less dense than the statewide ZIP median of 1,120 (rank 878 of 1,558). This is a low-density pattern of large lots, small towns or scattered subdivisions.