IRS SOI migration for 2022–2023 recorded 4,034 tax-return households moving from Tucson to Phoenix, representing 6,471 exemptions as a people proxy. The corridor accounted for 19.55% of Tucson’s measured outbound returns and 4.28% of Phoenix’s inbound returns. These are IRS tax-return households; they do not identify renters, every mover or future demand. Average adjusted gross income was $64,520.08 per return, a tax measure rather than salary or spendable income.
For household housing costs, the clearest change is a higher Phoenix benchmark. At Zillow’s June 2026 observation, Phoenix asking rent was $250 per month above Tucson, equal to the annual difference of $3,000. The Phoenix metro Zillow home-value benchmark was $103,947 higher. These metro benchmarks are not quotes for a particular apartment or evidence of the price at which a buyer can acquire a rental.
BEA’s 2024 Regional Price Parities also place Phoenix above Tucson for housing and all items, so the broader price-level comparison points in the same direction as the Zillow rent contrast. Rental-property underwriting is less one-sided: Phoenix combines higher benchmark rent with a lower gross-yield screen, while its FEMA modeled climate/hazard loss ratio is lower. The next underwriting question is whether a specific Phoenix property’s achievable rent, contract price, concessions, vacancy, taxes, insurance and recurring expenses preserve acceptable economics after replacing metro benchmarks with property evidence.

