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Rancho Cucamonga city, CA
ZIP 91730 — People & Community
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Middle ClassLarge CommunityLow Snow Area
Demographics, education attainment, health access, and community lifestyle
Population & Demographics in 91730
91730 has a population of 71,692 with a median age of 34.8 yrs (47.3% male).
Health & Community Indicators in 91730
Historical Trends in 91730 (2020–Present)
Since 2020, population declined 4.2%, median income rose 1.6% (inflation-adjusted), home values increased 18.3%.
People & Community key statistics
| Population | |
|---|---|
| Population | 71,692 |
| Median age | 34.8 |
| Poverty rate | 10.1% |
| Demographics | |
|---|---|
| White | 40.6% |
| Hispanic | 43.2% |
| Black | 10.1% |
| Asian | 14.2% |
| Foreign-born | 26.3% |