San Luis, Arizona

32% of students met the state standard in mathematics and 29% in reading, across the schools here that reported results.

There are 23.3 students for every full-time teacher across 20 public schools, more than in most measured places.

Public schools only, from the NCES Common Core of Data, placed by ZIP code — which schools are in this place, not which one a particular address is zoned for. A dash in a proficiency column is a gap in the federal file, not a bad result. Proficiency is measured against Arizona’s own standard, so it is ranked within state. How to read school figures.

Population has grown 12% since 2020, reaching 40,064 in 2024.

Permitting has turned downward after moving the other way the year before: 175 units authorized in 2025, 69% below the prior year.

Population is still rising but the pace is easing: 40,064 residents in 2024, up 4.0% over the year, a smaller gain than the year before.

New construction is predominantly single-family: of 308 units permitted over the past twelve months, none were in buildings of five or more homes.

Federal tax returns show that people moving in from elsewhere in the US and people moving out roughly balanced across Yuma County, which contains San Luis, in the most recent year. Households that moved in reported an average income of $54,393, close to the $54,249 of households that moved out.

At 8.2 permitted units per 1,000 residents, building activity is above the median for measured US cities.

People moving in and out

Based on the address on federal tax returns, compared with the same filers a year earlier. It counts people who file, and sees a move only when the address on a return changes. Domestic moves only: people arriving from abroad are left out. This is the figure for Yuma County, AZ. IRS Statistics of Income, filing years 2022–2023.

The hazards accounting for most of this area's expected annual loss are earthquake, inland flooding and heat wave, with earthquake alone responsible for 57% of it.

Hazard ratings are AreaProfile calculations derived from the FEMA National Risk Index v1.20.0 (December 2025). FEMA publishes at county level. City values are the population-weighted mean of the counties the city overlaps, using AreaProfile place-to-county land-area weights. FEMA does not endorse this presentation. Higher physical resilience means lower exposure.

Below these are deaths rather than offenses, published for the county. The two measure different things and are not comparable with each other.

San Luis's police department reported 85 violent offenses per 100,000 residents, lower than most places with a department reporting. Property crime runs at 512.

Yuma County has a modeled homicide rate of about 4.4 per 100,000 residents a year, because the CDC suppresses counts this small, near the middle of counties measured. The CDC does not publish this below county level.

Firearm deaths of all intents run at 18.3 per 100,000 — more than the homicide rate, since the figure counts suicides and accidents as well as homicides.

Drug overdose deaths run at 20.2 per 100,000 residents in Yuma County.

Firearm deaths count every intent together, and nationally the majority are suicides rather than homicides, so the firearm figure and the homicide figure above it count some of the same deaths twice over. They overlap and should not be added together.

Offenses are reported to the FBI by San Luis’s own police department and shown only where it reported every month of the year; a partial year is withheld rather than scaled up. Reported crime is what police recorded, which is not the same as what happened. Death rates are crude rates — deaths divided by population, not adjusted for age — except where a count was too small for the CDC to publish and it modeled the rate, which the card marks. They come from provisional death certificate records, published by the CDC by county and not below it. So they describe the county around San Luis (Yuma County) rather than San Luis itself. Neither is part of the Area Score. How to read crime rates and death rates.

1 major airport lies within 100 miles, the nearest Yuma MCAS/Yuma Intl at 14 miles.

Airport identity, position and runway data come from the FAA. “Major airport” is an AreaProfile classification — a public-use civil airport with a paved runway of at least 8,000 feet — not an FAA hub designation. Distances are straight-line, not driving distance.