PHX Reporter

There were 19,974 more people living in Pinal County in 2021 compared to 2020, according to population estimates from the US Census Bureau.

This is a 4.6 percent rise in Pinal County’s population, from 429,583 in 2020 to 449,557 in 2021.

Pinal County had the third 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.

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%