The Yuma Metropolitan Statistical Area, as defined by the United States Census Bureau

United States Census Bureau

The United States Census Bureau is the government agency that is responsible for the United States Census. It also gathers other national demographic and economic data...

, is an area consisting of a single county – Yuma

Yuma County, Arizona

-2010:Whereas according to the 2010 U.S. Census Bureau:*70.4% White*2.0% Black*1.6% Native American*1.2% Asian*0.2% Native Hawaiian or Pacific Islander*3.8% Two or more races*20.8% Other races*59.7% Hispanic or Latino -2000:...

 – anchored by the city of Yuma

Yuma, Arizona

Yuma is a city in and the county seat of Yuma County, Arizona, United States. It is located in the southwestern corner of the state, and the population of the city was 77,515 at the 2000 census, with a 2008 Census Bureau estimated population of 90,041....

. As of the 2000 census

United States Census, 2000

The Twenty-second United States Census, known as Census 2000 and conducted by the Census Bureau, determined the resident population of the United States on April 1, 2000, to be 281,421,906, an increase of 13.2% over the 248,709,873 persons enumerated during the 1990 Census...

, the MSA had a population of 160,026 (though a July 1, 2009 estimate placed the population at 196,972).

Yuma County was first designated a metropolitan area in 1990.

Cities

• San Luis
  San Luis, Arizona
  San Luis is a city in Yuma County, Arizona, United States. The population was 15,322 at the 2000 census. It is part of the Yuma Metropolitan Statistical Area. San Luis was the second fastest-growing place among all cities and towns in Arizona of any size from 1990 and 2000...
  
  
• Somerton
  Somerton, Arizona
  Somerton is a city in Yuma County, Arizona, United States. As of the 2010 census the population was 12,014. It is part of the Yuma Metropolitan Statistical Area.Somerton was established in 1898 and incorporated in 1918...
  
  
• Yuma
  Yuma, Arizona
  Yuma is a city in and the county seat of Yuma County, Arizona, United States. It is located in the southwestern corner of the state, and the population of the city was 77,515 at the 2000 census, with a 2008 Census Bureau estimated population of 90,041....
  
   (Principal city)

Census-designated places

Note: All census-designated places are unincorporated

Unincorporated area

In law, an unincorporated area is a region of land that is not a part of any municipality.To "incorporate" in this context means to form a municipal corporation, a city, town, or village with its own government. An unincorporated community is usually not subject to or taxed by a municipal government...

.

• Fortuna Foothills
  Fortuna Foothills, Arizona
  Fortuna Foothills is a census-designated place in Yuma County, Arizona, United States. The population was 20,478 at the 2000 census. It is part of the Yuma Metropolitan Statistical Area.-Geography:...
  
  
• Gadsden
  Gadsden, Arizona
  Gadsden is a census-designated place in Yuma County, Arizona, United States. The population was 953 at the 2000 census. It is part of the Yuma Metropolitan Statistical Area.-Geography:Gadsden is located at ....
  
  
• Tacna
  Tacna, Arizona
  Tacna is a census-designated place in Yuma County, Arizona, United States. The population was 555 at the 2000 census. It is part of the Yuma Metropolitan Statistical Area.-Geography:Tacna is located at ....
  
  

Unincorporated places

• Dateland
  Dateland, Arizona
  Dateland is an unincorporated community in Yuma County, Arizona, United States. It is in an area well known for date palm dates.Dateland has the ZIP Code of 85333; in 2000, the population of the 85333 ZCTA was 852....
  
  
• Hyder
  Hyder, Arizona
  Hyder is a ghost town and farming community in Yuma County, Arizona, United States. It and surrounding areas houses several different types of fish, shrimp, and other types of farms, one school , and two gas stations/general markets...
  
  
• Mohawk
  Mohawk, Arizona
  Mohawk is an unincorporated community in Yuma County, Arizona, United States. It is part of the Yuma Metropolitan Statistical Area.-Geography:...
  
  
• Roll
  Roll, Arizona
  Roll is an unincorporated community in central Yuma County, Arizona, United States. It is part of the Yuma Metropolitan Statistical Area. Named for early settler John H. Roll, it lies along the lower Gila River, between the Yuma Proving Ground and the Barry M. Goldwater Air Force Range. Local...