Located mostly in Maricopa Arizona, Peoria is a major Phoenix suburb located about 14 miles northwest of the city. Peoria, a name which is a corrupted version of an Illini word for "prairie fire," is the 9th largest city in Arizona in terms of population and the 8th largest in Metro Phoenix. Maricopa County is Arizona's population center with 61% of the state's population.
Peoria is less diverse than Metro Phoenix as a whole as Arizona has the 3rd highest number of American Indians of any state at more than 10% of the U.S. American Indian population. Phoenix borders an American Indian reservation. The American Indian population of Peoria is just 0.7%, however.
In the Phoenix Metro area, the most common ancestry groups include Mexican, German, English, and Irish. Almost 12% of people in Peoria claim Irish ancestry. The largest Asian-American subgroup in Peoria is Filipino Americans.
About 8.7% of Peoria's residents were born outside of the U.S. The city has a notable gender disparity: for every 100 females over the age of 18, there are only 88 males.
Arizona's population has been surging in recent year. In 2019, it was ranked as the 4th fastest growing state in the U.S. Maricopa County, which includes most of Peoria, is believed to have hit 4 million people in 2016. The growth of Metro Phoenix has averaged over 40% per decade between 1950 and 2000 but its growth slowed to 20% between 2000 and 2010 due to water restraints and other resources. It's predicted that the Metro Phoenix area will reach 6-7 million within 20 years, up from 4.6 million in 2019. Peoria is certain to enjoy some of this growth.