Migration to and from Pima County, Arizona
Where Pima County residents came from and where they went over the 5-year window 2016-2020. Census ACS County-to-County Migration Flows, 2020 5-yr (frozen vintage).
Total inflow
75,014
people moved in (5-yr)
Total outflow
49,104
people moved out (5-yr)
Net migration
+25,910
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Maricopa County | Arizona | 10,124 |
| Central America | 3,279 | |
| Pinal County | Arizona | 2,942 |
| Cochise County | Arizona | 2,144 |
| Los Angeles County | California | 1,719 |
| Asia | 1,620 | |
| San Diego County | California | 1,425 |
| Europe | 1,154 | |
| Mohave County | Arizona | 1,021 |
| King County | Washington | 991 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Maricopa County | Arizona | 6,565 |
| Pinal County | Arizona | 4,624 |
| San Diego County | California | 1,342 |
| Coconino County | Arizona | 907 |
| Clark County | Nevada | 896 |
| Cochise County | Arizona | 796 |
| Yavapai County | Arizona | 794 |
| Los Angeles County | California | 719 |
| King County | Washington | 696 |
| Santa Cruz County | Arizona | 626 |
Explore Pima County
- Business data for Pima CountyConstruction sector establishments, employment, payroll
- Cities in ArizonaACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in AZGovBids: RFPs, awards, NAICS matching
- New business filings in ArizonaNewFilings: fresh SOS registrations
Methodology
- Counts represent the number of people aged 1+ who reported a different residence at the survey reference date than they did one year earlier, aggregated across the 5-year sample window 2016-2020.
- Outbound (OUT) flows are reported less frequently than inbound (IN) because the survey captures the destination side of each move. Many county pairs have null OUT counts, which is normal.
- "Total inflow" sums the published MOVEDIN counts across all origin counties, including foreign-region inflows (Africa, Asia, Central America, etc.). It is not the same as net population change.
- Frozen vintage. The Census Bureau has not released a newer county-to-county migration flows file. The 2020 5-yr vintage (covering 2016-2020) is the latest available as of build date.
Source: U.S. Census Bureau, American Community Survey, County-to-County Migration Flows: 2016-2020. Vintage: 2020 5-yr. Generated: 2026-05-28. FIPS: 04019.