San Luis, AZ population, income and ZIP codes

San Luis city is a small city in Arizona, with 35,998 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #31 of 467 ranked by population — larger than 93% of them. The median age here is 33.2 years against 39.1 nationally, a slightly younger profile than the country as a whole. 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 San Luis city earn a median of $57,364 a year, 27% below the national figure of $78,538 and 10% below the $63,545 median for the 206 Arizona 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 21.9% 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 Luis city is valued at $197,400, 34.9% below the national figure and 19% below the $242,700 peer median, while median gross rent runs $746 a month, 46.9% below the national figure, or roughly $8,952 across a full year. A household on the local median income would put about 15.6% 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 3.4×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 68.4% 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.

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.