Population of Maricopa County

The Population in Maricopa County Continues to Grow

© Judy Hedding

What is the population of Maricopa County? Maricopa County is where Phoenix, Arizona is located. Other major Arizona cities like Mesa, Scottsdale, Tempe and Glendale, are also in Maricopa County. The U.S. Census Bureau provides county population statistics at each full Census in years ending in a "0", as well as population estimates at various intermediate years.

Population of Maricopa County, Estimated July 1, 2016


Maricopa County Population Growth since 2010

417,381 or 10.9%

Maricopa County has the 4th largest population of counties in the U.S. and the highest growth rate among the ten largest counties in the U.S.

By How Many People Did Maricopa County's Population Grow Every Single Day?

From April 1, 2000 to April 1, 2010 the population of Maricopa County grew by about 204 people per day. From July 1, 2010 to July 1, 2016 the population of Maricopa County grew by about 190 people per day. Those are net figures, meaning it takes into account how many people left Maricopa County or passed away during that time.

Population of Phoenix Metro Area / Greater Phoenix, Estimated July 1, 2016

The Census defines the Phoenix-Mesa-Scottsdale Metropolitan Statistical Area (MSA) as including both Maricopa and Pinal counties. The 2016 estimate put the population at 4,661,537 making it the 12th largest metro area in the U.S.

What is the Second Largest County in Arizona?

Pima County, where the City of Tucson is located, is the second largest county in Arizona. It grew 16.2% from 2000 (population 843,746) to 2010 (population 980,263). It grew 3.6% from 2010 (population 980,263) to 2016 (population 1,016,206), with a net growth of 16 people per day.

You Might Also Want to Know...

  • Population of Arizona
  • Ten Largest Cities in Arizona
  • Top Tens, Bottom Tens: How Phoenix and Arizona Rank
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