This is less than a one percent rise in Pima County’s population, from 1,045,599 in 2020 to 1,052,030 in 2021.
Pima County had the second largest population in Arizona in 2021.
The US Census Bureau found more than 73 percent of counties in the US saw a natural decrease in population in 2021. This is up from a 55.5 percent increase in 2020.
The Midwest suffered the most sustained population decreases, with many counties along the US East Coast and through the Rocky Mountains seeing increases.
The US population continues to grow, though at a slower rate than before.
Arizona Counties By Population Change from 2020 to 2021
| County | 2020 Estimated Population | 2021 Estimated Population | % Change in Population From Year to Year |
|---|---|---|---|
| Pinal County | 429,583 | 449,557 | 4.6% |
| Yavapai County | 237,067 | 242,253 | 2.2% |
| Mohave County | 214,070 | 217,692 | 1.7% |
| Maricopa County | 4,438,342 | 4,496,588 | 1.3% |
| Navajo County | 106,802 | 108,147 | 1.3% |
| Yuma County | 204,437 | 206,990 | 1.2% |
| Graham County | 38,614 | 39,050 | 1.1% |
| Pima County | 1,045,599 | 1,052,030 | 0.6% |
| Gila County | 53,306 | 53,589 | 0.5% |
| Cochise County | 125,398 | 126,050 | 0.5% |
| Santa Cruz County | 47,653 | 47,883 | 0.5% |
| Coconino County | 145,116 | 145,052 | 0% |
| Apache County | 65,897 | 65,623 | -0.4% |
| La Paz County | 16,580 | 16,408 | -1% |
| Greenlee County | 9,522 | 9,404 | -1.2% |
ORGANIZATIONS IN THIS STORY
Anegam• Charco• Summerhaven• Willow Canyon• Corona De Tucson• Green Valley• Valencia West• Pimaco Two• Arivaca• Ko Vaya• Ali Chukson• Sells• Rincon Valley• Picture Rocks• Ali Molina• Ak Chin• Santa Rosa• Vail• Elephant Head• Casas Adobes• Sahuarita• Ventana• City of South Tucson• Pisinemo• Ajo• Haivana Nakya• Nelson• Nolic• Three Points• Ali Chuk• Littletown• Chiawuli Tak• Tucson Estates• Arivaca Junction• Why• Rillito• Comobabi• Gu Oidak• Topawa• Catalina Foothills• Flowing Wells• Cowlic• Town of Oro Valley• Summit• South Komelik• Catalina• Tanque Verde• Avra Valley• Wahak Hotrontk• South Tucson City• San Miguel• Drexel Heights• Maish Vaya
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