Tucson Standard

In 2019, 23,472 people moved to Pima County from across the U.S and other countries, according to migration data from the Internal Revenue Service.

This is an increase over the year before, when 21,243 people migrated to Pima County.

The number of people moving to Pima County is offset by the 19,304 residents who left the area during the same year.

There were 17,823 people who left the year before.

Migration data for the U.S. is based on year-to-year address changes reported on individual income tax returns filed with the IRS.

According to the U.S. Census Bureau, most U.S. regions saw their numbers shrink.

The Northeast region of the U.S. suffered the greatest losses, while the Midwest saw population growth.

The U.S. Census Bureau found migration within the country mainly flows to the South, with many people moving to areas of Florida and Texas.

Years	Inflow	Outflow	Domestic Migration
2017-2018	21,813	18,183	3,630
2018-2019	21,243	17,823	3,420
2019-2020	23,472	19,304	4,168