{"level":"city","name":"Chicago","state":"IL","state_name":"Illinois","page":"https://www.retrorate.com/assumable-mortgages/illinois/chicago","parent":{"name":"Illinois","page":"https://www.retrorate.com/assumable-mortgages/illinois"},"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":63353,"avg_assumable_rate":4.71,"avg_balance":236717,"avg_monthly_savings":279,"rate_bands":{"under_3":7216,"3_to_4":17600,"4_to_5":15168,"5_and_over":23369}},"zip_codes":{"note":"The ZIP codes with the most assumable stock in this city, not every ZIP in it.","published":[{"name":"60629","page":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60629","data":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60629.json","assumable_homes":4421,"avg_assumable_rate":4.8,"avg_monthly_savings":209,"on_market_coverage":false},{"name":"60628","page":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60628","data":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60628.json","assumable_homes":3652,"avg_assumable_rate":5.11,"avg_monthly_savings":153,"on_market_coverage":false},{"name":"60620","page":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60620","data":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60620.json","assumable_homes":3638,"avg_assumable_rate":4.82,"avg_monthly_savings":218,"on_market_coverage":false},{"name":"60617","page":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60617","data":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60617.json","assumable_homes":3555,"avg_assumable_rate":5.05,"avg_monthly_savings":167,"on_market_coverage":false},{"name":"60619","page":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60619","data":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60619.json","assumable_homes":3387,"avg_assumable_rate":4.86,"avg_monthly_savings":217,"on_market_coverage":false},{"name":"60652","page":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60652","data":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60652.json","assumable_homes":3077,"avg_assumable_rate":4.76,"avg_monthly_savings":234,"on_market_coverage":false},{"name":"60638","page":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60638","data":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60638.json","assumable_homes":3018,"avg_assumable_rate":4.38,"avg_monthly_savings":320,"on_market_coverage":false},{"name":"60634","page":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60634","data":"https://www.retrorate.com/assumable-mortgages/illinois/chicago/60634.json","assumable_homes":2888,"avg_assumable_rate":4.27,"avg_monthly_savings":395,"on_market_coverage":false}]},"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"}}