Arizona

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Arizona Population News Articles

Population Density

Historic & Projected Growth

Population by County

POPULATION DENSITY

People per square mile, 2010: 56.3

People per square mile, 2020: 62.9

HISTORIC & PROJECTED GROWTH 1790 TO 2040

Sources: Census figures from U.S. Bureau of the Census & *Estimates from Weldon Cooper Center, Demographics Research Group
(The Census Bureau and Weldon Cooper Center have not yet provided updated State projections to reflect 2020 census numbers.)

Population by County

SOURCE: U.S. Bureau of the Census

Arizona Population News Articles

Mesa is offering funding for student-led climate projects – Feb 12, 2025

Environmental groups challenge air quality permit for Copper World mine – Feb 9, 2025

Arizona governor announces water protection investment of over $60 million – Jan 28, 2025

How Trump’s actions on energy could worsen climate change in Arizona – Jan 24, 2025

Federal money will help connect CAP, SRP canals, stretching water supplies for cities – Feb 1, 2025

A look at the undocumented immigrant population in Arizona and nationwide – Jan 16, 2025

A Rural Arizona Community May Soon Have a State Government Fix For Its Drying Wells – Oct 26, 2024

Phoenix park plants over 65 trees in hopes of reducing heat island effect – Oct 25, 2024

Arizona Sees Over 2,600 Prosecutions for Illegal Entry or Re-Entry in Q3 2024 Amid Rising Crackdown on Immigrant Smuggling – Oct 12, 2024

Map Shows People in Two States Being Asked to Avoid Driving Cars – Oct 11, 2024

Arizona is safe from hurricanes but not from climate hazards – Oct 8, 2024

In its first climate plan report card, Phoenix claims some progress, with work still to do – Oct 2, 2024

Mining threatens Arizona’s scarce water supply – Aug 13, 2024

Wildfire activity up across Arizona, and that can impact air quality – Aug 6, 2024

These U.S. states have the best and worst tap water: Washington ranked No. 1 while Arizona came in dead last – Aug 2, 2024

Report: Undocumented migrants make up 3.5% of Arizona’s population – July 30, 2024

Phoenix ranked 6th dirtiest city in US by new study. Here’s why – July 23, 2024

Amid heat waves and drought, Arizona Republicans reject expert consensus on climate change as ‘fake science’ – July 15, 2024

Migrant crossings fall sharply along Texas border, shifting to Arizona and California – Feb 8, 2024

Cattle are a part of Arizona’s history. Climate change, overgrazing concerns cloud their future – Feb 6, 2024

City of Mesa tests rainwater, reveal concerning finds – Jan 27, 2024

CAN WE SAVE THESE 7 ARIZONA ANIMALS ON THE VERGE OF EXTINCTION? – Jan 22, 2024

4 Arizona Cities are Some of the Fastest-Growing Cities in the U.S. – Jan 19, 2024

New study suggests increase in wildfires is undoing air quality improvements in the West; Arizona experts weigh in – Jan 13, 2024

Thousands of migrants enter US via Arizona’s open floodgates – August 25, 2023

Arizona continues to attract new residents despite the heat – August 10, 2023

Taking Action on Climate Change in Arizona – August 4, 2023

PHOENIX ENDURES HISTORIC HEATWAVE, STUDY SAYS BLACKOUT WOULD BE CATASTROPHIC – August 2, 2023

Phoenix’s Rapid Growth Magnified Its Vulnerability to Heat – July 28, 2023

How Arizona’s Carbon Emissions Compare to Other States – July 26, 2023

Jaguars, leopard frogs, condors: Here are some of Arizona’s most imperiled species – Mar 6, 2023

Expert: Arizona among southwest states in worst drought in 1,200 years – Feb 24, 2023

Poll shows Arizonans support land and water conservation – Feb 23, 2023

This Arizona Town Is The State’s Worst Place To Live With Asthma – Feb 15, 2023

Arizona water officials worry about future access to Colorado River – September 13, 2022

Here’s why Arizona can expect more heat, more drought, more wildfires – September 13, 2022

Arizona’s forests are in bad shape – September 9, 2022

The health of honeybee colonies in Arizona – September 4, 2022

The population at an Arizona homeless encampment swells but resources fall short – August 26, 2022

Which Arizona creeks, lakes, rivers have the most contaminants? – May 31, 2022

5 Arizona cities among fastest growing in nation, according to census data – May 31, 2022

Baby bump: Births in Arizona increase for the first time in seven years – May 31, 2022

What’s Happening with the Arizona Water Shortage Crisis – May 24, 2022

New Report Ranks Phoenix 5th Worst Air For Pollution In U.S. As Waffle Forest Plans Tech Forest To Improve Air Quality – May 17, 2022

Drought Exposes ‘Canary in This Coal Mine’ of PFAS in Well Water – January 31, 2022

Global warming will cause massive declines in tree growth – January 27, 2022

Arizona’s rural areas, primary-care needs hit hardest by doctor shortage – January 21, 2022

With less water on the surface, how long can Arizona rely on what’s underground? – January 4, 2022

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