Seal Beach, CA population, income and ZIP codes

Seal Beach city is a mid-size town in California, with 24,868 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #306 of 1,618 ranked by population — larger than 81% of them. The median age here is 61.2 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. 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 Seal Beach city earn a median of $83,045 a year, 5.7% above the national figure of $78,538 and 9% below the $91,111 median for the 1,050 California cities we cover. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 5.5% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Seal Beach city is valued at $492,200, 62.2% above the national figure and 17% below the $589,600 peer median, while median gross rent runs $2,419 a month, 72% above the national figure, or roughly $29,028 across a full year. A household on the local median income would put about 35% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is a stretch on median earnings. The home-price-to-income ratio works out to 5.9×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 75.9% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

A median age of 61.2 puts Seal Beach city well into retirement-weighted territory, which pulls median household income down even where household wealth is high, because retirement draws are counted differently from wages.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. 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.