San Miguel (San Luis Obispo Co.), CA population, income and ZIP codes

San Miguel CDP (San Luis Obispo County) is a small town in California, with 2,956 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #799 of 1,618 ranked by population — larger than 50% of them. The median age here is 27.2 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. 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 San Miguel CDP (San Luis Obispo County) earn a median of $76,563 a year, 2.5% below the national figure of $78,538 and 16% below 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 23.1% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in San Miguel CDP (San Luis Obispo County) is valued at $453,000, 49.3% above the national figure and 23% below the $589,600 peer median, while median gross rent runs $1,810 a month, 28.7% above the national figure, or roughly $21,720 across a full year. A household on the local median income would put about 28.4% 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 5.9×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 59.6% 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.

A median age of 27.2 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address.

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.