Population 2010

3,817,117

Population 2020

4,420,568

Registered Voters

2,592,800

Republicans

10

Democrat

7

Minor Party

No Party

Municipalities

City NamePopulation
Phoenix1,624,569
Mesa509,475
Chandler279,458
Scottsdale242,753
Glendale249,630
Gilbert273,136
Tempe184.118
Peoria194,917
Surprise 149,191
Avondale90,564
Goodyear101,733
Buckeye101,315
Queen Creak66,346
El Mirage36,016
Fountain Hills23,819
Paradise Valley12,682
Wickenburg7,695
Tolleson7,295
Youngtown7,012
Guadalupe5,307
Litchfield Park6,942
Cave Creak5,015
Carefree3,685
Gila Bend 1,887
 

Superintendent of Schools

Treasurer / Tax Collector

Assessor

Auditor

County Commission

District 1 Jack Sellers 
District 2Thomas Gelvin 
District 3 Bill Gates 
District 4Clint Hickman 
District 5 Steve Gallardo
 

School Board

PresidentRobert. H Downey
Vice PresidentBen Owens 
Board Member Torri Anderson
Board Member AnnaMarie Knorr 
Board Member Dr. Gary Miller

Brief Political History

For much of the time after World War II, Maricopa County was one of the more conservative urban counties in the United States. While the city of Phoenix has been evenly split between the two major parties, most of the rest of the county was strongly Republican. Until 2020, every Republican presidential candidate since 1952 had carried Maricopa County. This includes the 1964 presidential run of native son Barry Goldwater, who would not have carried his own state had it not been for a 21,000-vote margin in Maricopa County. Until 2020, it was the largest county in the country to vote Republican. From 1968 to 2016, Democrats held the margin within single digits only three times–in 1992, 1996, and 2016. In 2020, Joe Biden became the first Democrat in 72 years to win the county, which flipped Arizona to the Democratic column for the first time since 1996 and only the second time since 1948.[24] Furthermore, Biden became the first presidential candidate to win more than one million votes in the county. This makes Maricopa County the third county in American history to cast more than one million votes for a presidential candidate. The county is also a statewide bellwether, voting for the statewide winning candidate in all elections except 1996.

Despite its consistent Republican allegiance since 1952, its fast-growing Hispanic population and influx of conservative retirees and Mormons, which were traditionally conservative voting blocs but were increasingly skeptical of President Donald Trump, signaled that it was a crucial bellwether in the 2020 election.

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