St. Johns is a

census-designated place A census-designated place (CDP) is a Place (United States Census Bureau), concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counte ...

(CDP) in

Maricopa County Maricopa County () is a county in the south-central part of the U.S. state of Arizona. As of the 2020 census the population was 4,420,568, or about 62% of the state's total, making it the fourth-most populous county in the United States and ...

Arizona Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...

, United States, located in the

Gila River Indian Community The Gila River Indian Community (GRIC) ( O'odham language: Keli Akimel Oʼotham, meaning "Gila River People", Maricopa language: Piipash) is an Indian reservation in the U.S. state of Arizona, lying adjacent to the south side of the cities of ...

. The population was 690 at the 2020 census, up from 476 at the 2010 census.

Geography

St. Johns is on the south side of the

Phoenix metropolitan area The Phoenix metropolitan area, also known as the Valley of the Sun, the Salt River Valley, metro Phoenix, or The Valley, is the largest metropolitan statistical area in the Southwestern United States, with its largest principal city being the c ...

, on the northeast side of the valley of the

Gila River The Gila River (; O'odham ima Keli Akimel or simply Akimel, Quechan: Haa Siʼil, Maricopa language: Xiil) is a tributary of the Colorado River flowing through New Mexico and Arizona in the United States. The river drains an arid watershed of ...

. It is bordered to the southeast by the communities of Komatke and Gila Crossing.

Downtown Phoenix Downtown Phoenix is the central business district (CBD) of the City of Phoenix, Arizona, United States. It is in the heart of the Phoenix metropolitan area or Valley of the Sun. Phoenix, being the county seat of Maricopa County, Arizona, ...

is to the northeast.

Demographics

As of the

census A census (from Latin ''censere'', 'to assess') is the procedure of systematically acquiring, recording, and calculating population information about the members of a given Statistical population, population, usually displayed in the form of stati ...

United States Census
/ref> of 2010, there were 476 people living in the CDP. The

population density Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...

was 208.7 people per square mile. The racial makeup of the CDP was 3%

White White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...

, <1%

Black Black is a color that results from the absence or complete absorption of visible light. It is an achromatic color, without chroma, like white and grey. It is often used symbolically or figuratively to represent darkness.Eva Heller, ''P ...

African American African Americans, also known as Black Americans and formerly also called Afro-Americans, are an Race and ethnicity in the United States, American racial and ethnic group that consists of Americans who have total or partial ancestry from an ...

, 95% Native American, 1% from other races, and 1% from two or more races. 4% of the population were

Hispanic The term Hispanic () are people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or broadly. In some contexts, Hispanic and Latino Americans, especially within the United States, "Hispanic" is used as an Ethnici ...

or Latino of any race.

Notes

Census-designated places in Maricopa County, Arizona Census-designated places in Arizona Gila River Indian Community {{MaricopaCountyAZ-geo-stub