Rail Road Flat, CA population, income and ZIP codes

Rail Road Flat CDP is a very small community in California, with 696 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #1157 of 1,618 ranked by population — larger than 28% of them. The median age here is 42.6 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 Rail Road Flat CDP earn a median of $85,656 a year, 9.1% above the national figure of $78,538 and 6% below the $91,111 median for the 1,050 California cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 11.5% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Rail Road Flat CDP is valued at $366,900, 20.9% above the national figure and 38% below the $589,600 peer median, while median gross rent runs $743 a month, 47.2% below the national figure, or roughly $8,916 across a full year. A household on the local median income would put about 10.4% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 4.3×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 87.4% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. 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.

With 696 residents, a handful of survey responses moves every median on this page. Compare Rail Road Flat CDP against its county rather than against national figures.

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.