Peoria /piˈɔːriə/ is a city in Maricopa and Yavapai counties in the state of Arizona. Most of the city is located in Maricopa County, while a tiny portion in the north is in Yavapai County. It is a major suburb of Phoenix. According to 2017 Census Bureau estimates, the population of the city is 168,181. Peoria is currently the sixth-largest city in Arizona for land area and the ninth-largest for population. It was named after Peoria, Illinois. The word “peoria” is a corruption of the Illini word for “prairie fire.” It is the spring training home of the San Diego Padres and Seattle Mariners, who share the Peoria Sports Complex. In July 2008, Money magazine listed Peoria in its Top 100 Places to Live.
Peoria is located at 33°34′57″N 112°14′19″W / 33.58250°N 112.23861°W / 33.58250; -112.23861 (33.582439, −112.238548).
According to the United States Census Bureau, the city has a total area of 141.7 square miles (367 km), of which, 138.2 square miles (358 km) of it is land and 3.5 square miles (9.1 km) of it (2.44%) is water.
Peoria has now annexed over 170 square miles (440 km) and is in two counties Maricopa County and Yavapai County. It is technically the largest incorporated city in Yavapai County even though almost all of Peoria’s current population resides on the Maricopa side.
The Agua Fria River and New River are the only rivers that flow through Peoria. The Agua Fria River is usually dry due to the New Waddell Dam that holds back Lake Pleasant in the northern end of the city. The New River is usually dry due to flood control measures and New River Dam. There are multiple washes and creeks that flow through the city as well, one of the most significant being the Skunk Creek, due to its trails and connectivity with nearby Glendale.
Peoria has many mountains and hills in the northern end. Some include Sunrise Mountain, West Wing Mountain, East Wing Mountain, Calderwood Butte, Cholla Mountain, White Peak, Hieroglyphic Mountains, and Twin Buttes.
The street system of Peoria is based on the city of Phoenix traditional grid system, with most roads oriented either north-south or east-west. The zero point is in downtown Phoenix at Central Avenue and Washington Street. Since Peoria is always west of zero, its north-south numbered Streets are Avenues. Major arterial streets are spaced one mile (1.6 km) apart (until you are north of roughly Pinnacle Peak Road). The one-mile (1.6 km) blocks are divided into approximately 800 house numbers, although this varies. 83rd Avenue, being 8300 West. The numbers in Phoenix start at Central Avenue at half-mile increments, going west to 7th Avenue ½ mile from Central but considered the arterial. Then the numbers go to 19th (1 mile from 7th), 27th, 35th, 43rd, 51st, 59th, 67th (in many places Peoria’s eastern border), 75th, 83rd, 91st, 99th, and so on. In northern Peoria streets are more curvilinear and begin to not follow the north-south route due to rivers, mountains, and terrain challenges. The northern end of the city does still follow the alignment theory and still has blocking according to Phoenix.
As of the census of 2000, there were 108,364 people, 39,184 households, and 29,309 families residing in the city. The population density was 784.0 people per square mile (302.7/km²). There were 42,573 housing units at an average density of 308.0 per square mile (118.9/km²). The racial makeup of the city was 84.95% White, 2.78% Black or African American, 0.68% Native American, 1.92% Asian, 0.11% Pacific Islander, 7.09% from other races, and 2.48% from two or more races. 15.41% of the population were Hispanic or Latino of any race.
There were 39,184 households, out of which 37.7% had children under the age of 18 living with them, 62.0% were married couples living together, 9.1% had a female householder with no husband present, and 25.2% were non-families. 20.5% of all households were made up of individuals and 10.3% had someone living alone who was 65 years of age or older. The average household size was 2.73 and the average family size was 3.16.
In the city, the population was spread out with 28.4% under the age of 18, 6.7% from 18 to 24, 30.6% from 25 to 44, 19.8% from 45 to 64, and 14.4% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 92.5 males. For every 100 females age 18 and over, there were 88.0 males.
The median income for a household in the city was $52,199, and the median income for a family was $58,388. Males had a median income of $40,448 versus $29,205 for females. The per capita income for the city was $22,726. About 3.3% of families and 5.3% of the population were below the poverty line, including 5.8% of those under age 18 and 6.3% of those age 65 or over.