Tranquillity, CA population, income and ZIP codes

Tranquillity CDP is a very small community in California, with 707 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #1153 of 1,618 ranked by population — larger than 28% of them. The median age here is 42.8 years against 39.1 nationally, a slightly older profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Tranquillity CDP earn a median of $61,250 a year, 22% below the national figure of $78,538 and 33% 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 10.5% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Tranquillity CDP is valued at $350,000, 15.4% above the national figure and 41% below the $589,600 peer median, while median gross rent runs $1,230 a month, 12.5% below the national figure, or roughly $14,760 across a full year. A household on the local median income would put about 24.1% 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 5.7×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 70.7% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

With 707 residents, a handful of survey responses moves every median on this page. Compare Tranquillity CDP against its county rather than against national figures.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. 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.