Maricopa County, Arizona facts for kids

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Maricopa County, Arizona
Seal of Maricopa County, Arizona
Map
Map of Arizona highlighting Maricopa County
Location in the state of Arizona
Map of the USA highlighting Arizona
Arizona's location in the U.S.
Statistics
Founded February 14, 1871
Seat Phoenix
Largest City Phoenix
Area
 - Total
 - Land
 - Water

9,224 sq mi (23,890 km²)
9,200 sq mi (23,828 km²)
24 sq mi (62 km²), 0.3%
PopulationEst.
 - (2015)
 - Density

4,167,947
453/sq mi (175/km²)
Time zone Mountain: UTC-7
Website: www.maricopa.gov
County flag Flag of Maricopa County, Arizona

Maricopa County (/ˌmærˈkpə/ MARR-i-KOH-pə) is a county in the south-central part of the U.S. state of Arizona. As of the 2010 census, its population was 3,817,117, making it the state's most populous county, and the fourth-most populous in the United States. It is more populous than 23 states. The county seat is Phoenix, the state capital and sixth-most populous city in the country.

Maricopa County is the central county of the Phoenix-Mesa-Glendale, AZ Metropolitan Statistical Area.

The population explosion is evident in a 2007 Forbes study which ranked four of Maricopa County's municipalities in the top ten fastest-growing cities in the nation. Those included Buckeye as the second-fastest-growing city, Surprise and Goodyear as 3rd and 4th, and Avondale as 9th. All four of these cities are in the growing "West Valley", which is the area of Maricopa County to the west of the city of Phoenix.

Maricopa County was named after the Maricopa Indians. There are five Indian reservations located in the county. The largest are the Salt River Pima-Maricopa Indian Community (east of Scottsdale) and the Gila River Indian Community (south of Chandler).

Geography

According to the U.S. Census Bureau, the county has a total area of 9,224 square miles (23,890 km2), of which 9,200 square miles (24,000 km2) is land and 24 square miles (62 km2) (0.3%) is water. Maricopa County is also one of the largest counties in the United States by area having a land area greater than that of seven states. It is by far Arizona's most populous county, encompassing well over half of the state's residents. It is also the largest county in the United States to contain a capital city.

Adjacent counties

National protected areas

  • Sonoran Desert National Monument (part)
  • Tonto National Forest (part)

Demographics

Historical populations
Census Pop.
1880 5,689
1890 10,986 93.1%
1900 20,457 86.2%
1910 34,488 68.6%
1920 89,576 159.7%
1930 150,970 68.5%
1940 186,193 23.3%
1950 331,770 78.2%
1960 663,510 100.0%
1970 971,228 46.4%
1980 1,509,175 55.4%
1990 2,122,101 40.6%
2000 3,072,149 44.8%
2010 3,817,117 24.2%
Est. 2015 4,167,947 35.7%
U.S. Decennial Census
1790–1960 1900–1990
1990–2000 2010–2015

2000 census

As of the census of 2000, there were 3,072,149 people, 1,132,886 households, and 763,565 families residing in the county. The population density was 334 people per square mile (129/km²). There were 1,250,231 housing units at an average density of 136/sq mi (52/km²). The racial makeup of the county was 77.35% White, 3.73% African American, 1.85% Native American, 2.16% Asian, 0.14% Pacific Islander, 11.86% from other races, and 2.91% from two or more races. 29.5% of the population were Hispanic or Latino of any race. 19.10% reported speaking Spanish at home.

There were 1,132,886 households out of which 33.00% had children under the age of 18 living with them, 51.60% were married couples living together, 10.70% had a female householder with no husband present, and 32.60% were non-families. 24.50% of all households were made up of individuals and 7.90% had someone living alone who was 65 years of age or older. The average household size was 2.67 and the average family size was 3.21.

The population was spread out with 27.00% under the age of 18, 10.20% from 18 to 24, 31.40% from 25 to 44, 19.80% from 45 to 64, and 11.70% who were 65 years of age or older. The median age was 33 years. For every 100 females there were 100.10 males. For every 100 females age 18 and over, there were 98.10 males.

The median income for a household in the county was $45,358, and the median income for a family was $51,827. Males had a median income of $36,858 versus $28,703 for females. The per capita income for the county was $22,251. About 8.00% of families and 11.70% of the population were below the poverty line, including 15.40% of those under age 18 and 7.40% of those age 65 or over.

2010 census

As of the 2010 United States Census, there were 3,817,117 people, 1,411,583 households, and 932,814 families residing in the county. The population density was 414.9 inhabitants per square mile (160.2/km2). There were 1,639,279 housing units at an average density of 178.2 per square mile (68.8/km2). The racial makeup of the county was 73.0% white, 5.0% black or African American, 3.5% Asian, 2.1% American Indian, 0.2% Pacific islander, 12.8% from other races, and 3.5% from two or more races. Those of Hispanic or Latino origin made up 29.6% of the population. In terms of ancestry, 16.2% were German, 10.6% were Irish, 9.7% were English, 5.2% were American, and 5.1% were Italian.

Of the 1,411,583 households, 35.1% had children under the age of 18 living with them, 47.8% were married couples living together, 12.4% had a female householder with no husband present, 33.9% were non-families, and 25.9% of all households were made up of individuals. The average household size was 2.67 and the average family size was 3.25. The median age was 34.6 years.

The median income for a household in the county was $55,054 and the median income for a family was $65,438. Males had a median income of $45,799 versus $37,601 for females. The per capita income for the county was $27,816. About 10.0% of families and 13.9% of the population were below the poverty line, including 19.8% of those under age 18 and 7.0% of those age 65 or over.

Transportation

The county is served by three interstates (Interstate 8, Interstate 10, and Interstate 17), one U.S. Highway (US 60), and several state highways (SR 51, SR 74, SR 85, SR 87, SR 143, Loop 101, Loop 202, and Loop 303).

In the area of rail transport, the region is also served by Phoenix's light rail system. The county has no other passenger rail transport as Amtrak's Sunset Limited, which once served Phoenix, has its closest stop in Maricopa, Arizona in neighboring Pinal County. The train connects Maricopa to Tucson, Los Angeles, and New Orleans three times a week. However it does not stop in Phoenix itself.

Major Highways

  • I-8 (AZ).svg Interstate 8
  • I-10 (AZ).svg Interstate 10
  • I-17 (AZ).svg Interstate 17
  • US 60.svg U.S. Route 60
  • Arizona 101.svg Loop 101
  • Arizona 202.svg Loop 202
  • Arizona 303.svg Loop 303
  • Arizona 51.svg State Route 51
  • Arizona 71.svg State Route 71
  • Arizona 74.svg State Route 74
  • Arizona 85.svg State Route 85
  • Arizona 87.svg State Route 87
  • Arizona 143.svg State Route 143
  • Arizona 347.svg State Route 347

Airports

Phoenix's major airport is Sky Harbor International Airport. Other airports that are also used are Phoenix-Mesa Gateway Airport in Mesa, Scottsdale Municipal Airport in Scottsdale, Deer Valley Airport, Phoenix Goodyear Airport in Goodyear and Buckeye Municipal Airport in Buckeye.

Communities

Cities

Towns

Census-designated places

Unincorporated communities

Indian reservation

County population ranking

The population ranking of the following table is based on the 2010 census of Maricopa County.

county seat

Rank City/Town/etc. Population (2010 Census) Municipal type Incorporated
1 Phoenix 1,445,632 City 1881
2 Mesa 439,041 City 1878 (founded)
3 Chandler 236,123 City 1920
4 Glendale 226,721 City 1910
5 Scottsdale 217,385 City 1951
6 Gilbert 208,453 Town 1920
7 Tempe 161,719 City 1894
8 Peoria (partially in Yavapai County) 154,065 City 1954
9 Surprise 117,517 City 1960
10 Avondale 76,238 City 1946
11 Goodyear 65,275 City 1946
12 Buckeye 50,876 City 1929
13 Sun City 37,499 CDP
14 El Mirage 31,797 City 1951
15 Queen Creek (partially in Pinal County) 26,361 Town 1990
16 Sun City West 24,535 CDP
17 Fountain Hills 22,489 Town 1989
18 Anthem 21,700 CDP
19 New River 14,952 CDP
20 Sun Lakes 13,975 CDP
21 Paradise Valley 12,820 Town 1961
22 Tolleson 6,545 City 1929
23 Wickenburg 6,363 Town 1909
24 Youngtown 6,156 Town 1960
25 Guadalupe 5,523 Town 1975
26 Litchfield Park 5,476 City 1987
27 Cave Creek 5,015 Town 1986
28 Citrus Park 4,028 CDP
29 Carefree 3,363 Town 1984
30 Gila Bend 1,922 Town 1962
31 Rio Verde 1,811 CDP
32 Komatke 821 CDP
33 Aguila 798 CDP
34 Wittmann 763 CDP
35 Maricopa Colony 709 CDP
36 Gila Crossing 621 CDP
37 St. Johns 476 CDP
38 Morristown 227 CDP
39 Arlington 194 CDP
40 Theba 158 CDP
41 Kaka 141 CDP
42 Wintersburg 136 CDP
43 Tonopah 60 CDP

Maricopa County, Arizona Facts for Kids. Kiddle Encyclopedia.