NOTE: Gray indicates insufficient data or a suppressed estimate.
Married-couple households concentrate most heavily in the suburban periphery—particularly the Santa Clarita Valley, the San Gabriel Valley foothills, and south Orange County—where many zip codes exceed 60–70% of all households. In sharp contrast, the urban core running from Hollywood through Downtown LA and into central Long Beach registers the lowest shares, often below 30%, reflecting denser rental markets and younger, more transient populations. A notable east-west gradient emerges in Orange County, with inland zip codes around Irvine and eastern Anaheim Hills skewing substantially higher than coastal and central areas near Santa Ana and Garden Grove.
Data: U.S. Census Bureau, 2023 ACS
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