ARIZONA
HISTORIC & PROJECTED GROWTH 1790 TO 2050
Sources: Census figures from U.S. Bureau of the Census & *Estimates from Weldon Cooper Center, Demographics Research Group
ARIZONA POPULATION DENSITY
Arizona Land Area - 113,594 square miles
YEAR | PEOPLE PER SQUARE MILE |
|---|---|
2020 | 62.9 |
2010 | 56.3 |
2000 | 45.2 |
1990 | 32.3 |
1980 | 23.9 |
1970 | 15.6 |
1960 | 11.5 |
1950 | 6.6 |
1940 | 4.4 |
1930 | 3.8 |
1920 | 2.9 |
1910 | 1.8 |
SOURCE: U.S. Bureau of the Census
Arizona Population News Articles
New Immigration Enforcement Hub in Phoenix Signals Shift in U.S. Border Security Policy – Jan 3, 2026
Here are the Arizona cities with largest population gains – Dec 29, 2025
In December, Phoenix is still breaking heat records. Is this the new normal? – Dec 16, 2025
Several Valley cities grew faster than Phoenix, report shows – Dec 11, 2025
Leave No Trace Education Produces Measurable Results at Arizona’s Oak Creek – Dec 9, 2025
Arizona environmental group asks Congress to hit pause on data centers – Dec 8, 2025
Here are the Arizona cities leading the nation in growth – Aug 14, 2025
Trump proposal to end US EPA climate authority could intensify Arizona’s heat, drought, and fires – Aug 13, 2025
Arizona critical minerals project stirs fears of dry wells and polluted drinking water – Aug 7, 2025
Is the Phoenix metro area ranked among the worst in the nation for air pollution? – Aug 1, 2025
Arizona feds charge 135 in week-long immigration crackdown – July 25, 2025
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