ZIP code 91103

ZIP 91103 is a mid-size town in Los Angeles County, California, with 24,910 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #728 of 1,803 ranked by population — larger than 59% of them. The median age here is 39.9 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in ZIP 91103 earn a median of $84,683 a year, 7.8% above the national figure of $78,538. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 18.5% of residents here, above the 12.4% national rate.

The typical owner-occupied home in ZIP 91103 is valued at $960,000, 216.4% above the national figure, while median gross rent runs $1,925 a month, 36.9% above the national figure, or roughly $23,100 across a full year. A household on the local median income would put about 27.3% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 11.3×, against roughly 3.9× nationally, so buying is out of reach on local earnings alone and the ownership market leans on outside income, equity or dual high earners. 46.6% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

Home values sit at 11.3× median household income, far past the 3.9× national mark, so ownership costs here are set by something other than local wages — second homes, retirees with equity, or commuters earning elsewhere. Median income runs above the national figure while poverty also runs above it — a split distribution, not a uniformly comfortable place. Averages hide that; the two numbers together do not.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

ZIP 91103 is tabulated inside Los Angeles County, California, one of 295 ZIP areas the Census publishes for that county and 1,803 across California. This is a mid-sized suburban ZIP inside a county that is split across many delivery areas. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 91103 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 91103 reports a median household income of $84,683, 9% below the $92,859 county median, and 6% below the $89,916 typical CA ZIP. Owner-occupied homes are valued at a median of $960,000, 20% above the county figure and 53% above the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $1,925 a month, which is why it reads higher than the advertised rent on a listing for the same unit.

California charges 7.25% statewide, and local governments overlapping 91103 may add county, city or special-district levies on top. We publish the state floor for this ZIP rather than guessing a combined figure, because ZIP boundaries and taxing-district boundaries were drawn for different purposes and do not line up.

Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 91103 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.