{"level":"zip","name":"85710","zip":"85710","city":"Tucson","state":"AZ","state_name":"Arizona","page":"https://www.retrorate.com/assumable-mortgages/arizona/tucson/85710","parent":{"name":"Tucson","page":"https://www.retrorate.com/assumable-mortgages/arizona/tucson"},"counted_as_of":"2026-10-15","market_rate":{"value":7.3,"label":"average 30-year fixed rate","as_of":"2026-10-16","source":"Optimal Blue Mortgage Market Indices (OBMMI)"},"savings_basis":{"comparison":"the assumable loan against a new loan for the same amount, at the same cash to close","includes":"principal and interest only","remaining_term_years":25,"remaining_term_assumed":true},"coverage":{"tier":"B","on_market":"off-market only: counts cover homes with a mortgage carrying an assumable loan"},"figures":{"assumable_homes":2734,"avg_assumable_rate":4.36,"avg_balance":220337,"avg_monthly_savings":303,"rate_bands":{"under_3":588,"3_to_4":887,"4_to_5":321,"5_and_over":938}},"terms":{"publisher":"RetroRate (Assumable Technologies Inc.)","source":"RetroRate production data, from public data sources and county records","attribution":"Cite as RetroRate, with a link to the page URL.","contact":"press@retrorate.com","documentation":"https://www.retrorate.com/assumable-mortgages"}}