ZIP Code 91789 — Walnut, California

The median home in 91789 is valued at $910,400 against a median household income of $123,555, a price-to-income ratio of 7.4. 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 Los Angeles County, 91789 ranks 73 of 275 ZIPs on affordability (1 = lowest ratio); the county median ratio is 9.2. Renting takes 26.1% of median household income (median rent $2,690 a month), under the 30% cost-burden threshold.

91789 ranks 315 of 1,558 statewide on median household income and 388 of 1,558 on median home value; its income is above the $87,339 Los Angeles County median. 82% of households own their home, above the 64% statewide ZIP median, making this a majority-owner ZIP. 53% of adults hold a bachelor's degree or higher, far above the 31% median, and the poverty rate is 7.2%, below the 10.8% statewide ZIP median. Unemployment stands at 4.6%.

With 2,602 residents per square mile across 15.9 square miles of land, 91789 is far denser than the statewide ZIP median of 1,120 (rank 641 of 1,558). This is predominantly single-family residential with suburban street patterns.