Comparison to Surrounding Areas
The median household income ($125,720) for 91789 is less than the median household income for Walnut city ($129,449). But it's more than 91792 ($94,817), 91724 ($103,163), 91748 ($83,428), 91765 ($105,565), 91768 ($76,041), 91791 ($102,266), Los Angeles County ($90,112), Diamond Bar city ($108,281), Industry city ($59,167), Pomona city ($79,479), and Rowland Heights CDP ($85,617).
| 91789 | $125,720 |
| Diamond Bar city | $108,281 |
| Industry city | $59,167 |
| Pomona city | $79,479 |
| Rowland Heights CDP | $85,617 |
| Walnut city | $129,449 |
| Los Angeles County | $90,112 |
Get Median Household Income for all Zip Codes in California.
The average household income ($154,585) for 91789 is less than the average household income for Walnut city ($164,168). But it's more than 91792 ($112,167), 91724 ($130,223), 91748 ($117,533), 91765 ($139,295), 91768 ($92,327), 91791 ($133,576), Los Angeles County ($128,770), Diamond Bar city ($138,466), Industry city ($77,203), Pomona city ($98,584), and Rowland Heights CDP ($119,555).
| 91789 | $154,585 |
| Diamond Bar city | $138,466 |
| Industry city | $77,203 |
| Pomona city | $98,584 |
| Rowland Heights CDP | $119,555 |
| Walnut city | $164,168 |
| Los Angeles County | $128,770 |
Get Average Household Income for all Zip Codes in California.
The per-capita income for 91789 is $49,392. The per capita income ($49,392) for 91789 is less than the per capita income for Walnut city ($52,304). But it's more than 91792 ($36,550), 91724 ($42,155), 91748 ($39,397), 91765 ($48,949), 91768 ($25,339), 91791 ($44,351), Los Angeles County ($45,792), Diamond Bar city ($47,945), Industry city ($22,669), Pomona city ($29,252), and Rowland Heights CDP ($39,997).
| 91789 | $49,392 |
| Diamond Bar city | $47,945 |
| Industry city | $22,669 |
| Pomona city | $29,252 |
| Rowland Heights CDP | $39,997 |
| Walnut city | $52,304 |
| Los Angeles County | $45,792 |
Get Per-Capita Income for all Zip Codes in California.
25.5% of households make over $200,000 a year. The percent high income households (25.5%) for 91789 is less than the percent high income households for Walnut city (27.6%). But it's more than 91792 (12.9%), 91724 (17.6%), 91748 (14.1%), 91765 (21.7%), 91768 (7.4%), 91791 (20.2%), Los Angeles County (17.5%), Diamond Bar city (22.0%), Industry city (0.0%), Pomona city (9.8%), and Rowland Heights CDP (14.3%).
| 91789 | 25.5% |
| Diamond Bar city | 22.0% |
| Industry city | 0.0% |
| Pomona city | 9.8% |
| Rowland Heights CDP | 14.3% |
| Walnut city | 27.6% |
| Los Angeles County | 17.5% |
Get High Income Households for all Zip Codes in California.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 91789 | $-1 | $118,711 | $144,653 | $105,000 |
| Diamond Bar city | $71,023 | $107,393 | $135,204 | $75,738 |
| Industry city | $-1 | $58,750 | $51,786 | $113,750 |
| Pomona city | $46,500 | $80,766 | $95,403 | $59,332 |
| Rowland Heights CDP | $43,173 | $79,343 | $109,190 | $74,162 |
| Walnut city | $29,632 | $136,016 | $145,378 | $111,154 |
| Los Angeles County | $51,302 | $98,428 | $101,492 | $64,269 |
Get Median Household Income by Age of Householder for all Zip Codes in California.
Use our lookalike & filtering workflow to discover every zip that matches your ideal market profile.
Our Income By Zip Code Lists let you start with a zip like 91789, then automatically find hundreds of similar zips by income, demographics, and growth potential — so you can build a smarter target list in minutes.
Get Your Income By Zip Code List
Get all zip codes in a state or the entire US with data such as median household income.
Starting at $65.
All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 91789 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 91789 | +/-$6,903 | +/-$7,774 | +/-$2,554 | +/-2.4% | +/-$-1 | +/-$16,573 | +/-$8,959 | +/-$15,491 |
| Diamond Bar city | +/-$6,624 | +/-$7,408 | +/-$2,556 | +/-2.4% | +/-$22,164 | +/-$11,084 | +/-$10,891 | +/-$10,982 |
| Industry city | +/-$23,008 | +/-$13,994 | +/-$12,055 | +/-56.5% | +/-$-1 | +/-$13,807 | +/-$4,543 | +/-$22,276 |
| Pomona city | +/-$3,248 | +/-$2,393 | +/-$917 | +/-1.0% | +/-$9,305 | +/-$6,035 | +/-$6,590 | +/-$6,161 |
| Rowland Heights CDP | +/-$6,641 | +/-$9,903 | +/-$3,324 | +/-1.7% | +/-$10,873 | +/-$9,040 | +/-$13,884 | +/-$13,101 |
| Walnut city | +/-$13,739 | +/-$10,038 | +/-$3,378 | +/-2.7% | +/-$29,279 | +/-$30,065 | +/-$14,095 | +/-$19,894 |
| Los Angeles County | +/-$392 | +/-$667 | +/-$239 | +/-0.2% | +/-$2,049 | +/-$745 | +/-$874 | +/-$786 |