IRS SOI migration 2022-2023 measured 4,657 tax-return households moving from Boulder to Denver. That corridor represented 32.93% of Boulder’s outbound returns and 5.81% of Denver’s inbound returns. The corridor therefore occupies a greater share of Boulder’s outflow than of Denver’s intake. These are tax-return households, not a count of renters, every mover, or future demand, so the flow provides direction without establishing a rental-demand forecast.
Material housing costs move down at the destination. Zillow’s metro rent and home-value readings dated 2026-06-30 put asking rent at $2,297 in Boulder and $1,930 in Denver. Home values were $727,775 and $572,682, respectively. Those are metro benchmarks, not quotes for comparable units or homes. For a household, Denver offers lower shelter-price screens, but the realized change depends on bedroom count, neighborhood, concessions, utilities, commute, and whether the move involves renting or buying.
For rental-property underwriting, Denver’s lower value raises the simple gross-yield screen from Boulder’s 3.79% to 4.04%. That is a better rent-to-value starting point, not a return conclusion: Denver asking rent was down 1.46% year over year while Boulder was up 1.04%, and gross yield excludes operating and financing costs. The next underwriting question is whether a specific Denver asset’s supportable lease rent can cover taxes, insurance, association charges, vacancy, maintenance, capital work, management, and debt service without relying on rent growth or appreciation.

