Wauwatosa, WI and Roswell, NM warrant different underwriting screens rather than a single ranking. Roswell’s Zillow city rent and home-value indexes produce a 9.55% gross yield against 4.75% in Wauwatosa, and its rent index rose 7.03% year over year versus 1.86%. That is a cash-flow lead at entry, not a net-return claim: gross yield excludes vacancy, management, repairs, taxes, insurance, utilities, financing and capital work.
Roswell’s 175,685 Zillow value index is below Wauwatosa’s 435,497, favoring a lower-cost acquisition screen. But Roswell’s 49.6% ACS rent-burden rate and 32.5% rent-to-income measure exceed Wauwatosa’s 43.1% and 20.4%. These affordability stresses qualify Roswell’s yield and rent-growth case; verify in-place collections, concessions, lease renewals and tenant incomes before treating index growth as durable cash flow.
Wauwatosa has the stronger local-demand screen: population changed 1.16% across overlapping ACS vintages, versus -0.63% in Roswell; this comparison is not annualized. Its unemployment rate was 2.09% rather than 5.00%. Wauwatosa’s 20.3% large-multifamily share contrasts with Roswell’s 4.9%, while Roswell’s 77.0% single-family share signals a different asset search. Citywide vacancy rates are not rental-specific availability measures, and the ACS survey is not contemporaneous with the Zillow period. Next, inspect property-level unit mix, rent roll, turnover, condition and comparable leases.

