San Luis, AZ Profile: Facts, Map & Data


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San Luis, Arizona - Basic Facts

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The City of San Luis had a population of 30,290 as of July 1, 2017. San Luis ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Arizona. See peer rankings below.

The primary coordinate point for San Luis is located at latitude 32.4864 and longitude -114.7241 in Yuma County. The formal boundaries for the City of San Luis (see map below) encompass a land area of 32.09 sq. miles and a water area of 0.07 sq. miles. Yuma County is in the Mountain time zone (GMT -7). The elevation is 131 feet.

The City of San Luis (GNIS ID: 2411795) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Arizona is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of San Luis is located within Somerton Division of Yuma County.

Beneath the boundary map are tables with San Luis population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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City of San Luis, AZ Boundary Map

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San Luis, AZ Data & Demographics (As of July 1, 2017)


Total Population 30,290
Daytime Population: Workers 4,280
Daytime Population: Residents 16,521
Total Daytime Population (TDP) 20,801
Ratio TDP/Total Population1 0.69
Population in Households 25,798
Population in Familes 24,658
Population in Group Qrtrs 4,492
Population Density2 944
Diversity Index3 70


Median Household Income $34,218
Average Household Income $43,514
Per Capita Income $9,192


Total Housing Units 6,785 (100%)
Owner Occupied HU 4,163 (61.4%)
Renter Occupied HU 1,974 (29.1%)
Vacant Housing Units 647 ( 9.5%)
Median Home Value $138,938
Average Home Value $143,664


Total Households 6,138
Average Household Size 4.2
Family Households 5,687
Average Family Size 4
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 2.4% 0.41%
Households 0.42% 0.45%
Families 0.39% 0.43%
Median Household Income   1.75%
Per Capita Income   2.82%

San Luis, AZ - Peer Comparisons by Rank and Percentile

The table below compares San Luis to the other 451 incorporated cities, towns and CDPs in Arizona by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 32 93rd
Population Density # 70 85th
Diversity Index # 81 82nd
Median Household Income # 298 34th
Per Capita Income # 420 7th

Additional comparisons and rankings can be made with a VERY EASY TO USE Arizona Census Data Comparison Tool.

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