Somerton, AZ Profile: Facts, Map & Data


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Somerton, Arizona - Basic Facts

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The City of Somerton had a population of 15,299 as of July 1, 2017. Somerton ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Arizona. See peer rankings below.

The primary coordinate point for Somerton is located at latitude 32.602 and longitude -114.6958 in Yuma County. The formal boundaries for the City of Somerton (see map below) encompass a land area of 7.42 sq. miles and a water area of 0.01 sq. miles. Yuma County is in the Mountain time zone (GMT -7). The elevation is 105 feet.

The City of Somerton (GNIS ID: 2411927) 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 Somerton is located within Somerton Division of Yuma County.

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

Alternate Unofficial Names for Somerton: Algodones Land Grant.

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City of Somerton, AZ Boundary Map

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Boundary Maps: Somerton Division | Yuma County | Arizona Counties

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


Total Population 15,299
Daytime Population: Workers 1,780
Daytime Population: Residents 9,189
Total Daytime Population (TDP) 10,969
Ratio TDP/Total Population1 0.72
Population in Households 15,299
Population in Familes 14,295
Population in Group Qrtrs 0
Population Density2 2,063
Diversity Index3 62


Median Household Income $32,486
Average Household Income $41,929
Per Capita Income $11,128


Total Housing Units 4,376 (100%)
Owner Occupied HU 2,783 (63.6%)
Renter Occupied HU 1,280 (29.3%)
Vacant Housing Units 313 ( 7.2%)
Median Home Value $140,613
Average Home Value $149,551


Total Households 4,063
Average Household Size 3.77
Family Households 3,579
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 0.94% 0.88%
Households 0.95% 0.85%
Families 0.9% 0.81%
Median Household Income   1.89%
Per Capita Income   2.73%

Somerton, AZ - Peer Comparisons by Rank and Percentile

The table below compares Somerton 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 # 50 89th
Population Density # 30 94th
Diversity Index # 126 72nd
Median Household Income # 316 30th
Per Capita Income # 365 19th

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

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