Castle Hill, CA population, income and ZIP codes

Castle Hill CDP is a small town in California, with 1,303 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #994 of 1,618 ranked by population — larger than 38% 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 Castle Hill CDP earn a median of $250,001 a year, 218.3% above the national figure of $78,538 and 174% above the $91,111 median for the 1,050 California cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 0.4% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Castle Hill CDP is valued at $2,000,001, 559.2% above the national figure and 239% above the $589,600 peer median, while median gross rent runs not published a month. The home-price-to-income ratio works out to 8×, 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. 96% 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. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

Home values sit at 8× 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.

The Census withheld gross rent for Castle Hill CDP because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.