{"level":"city","name":"San Antonio","state":"TX","state_name":"Texas","page":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio","parent":{"name":"Texas","page":"https://www.retrorate.com/assumable-mortgages/texas"},"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":"A","on_market":"live listing data: counts include what is for sale"},"figures":{"assumable_homes":102277,"avg_assumable_rate":4.63,"avg_balance":250282,"avg_monthly_savings":306,"rate_bands":{"under_3":21044,"3_to_4":32121,"4_to_5":8019,"5_and_over":41125},"listings_assumable_now":1619},"zip_codes":{"note":"The ZIP codes with the most assumable stock in this city, not every ZIP in it.","published":[{"name":"78253","page":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78253","data":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78253.json","assumable_homes":12644,"avg_assumable_rate":4.93,"avg_monthly_savings":317,"on_market_coverage":true,"listings_assumable_now":218},{"name":"78245","page":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78245","data":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78245.json","assumable_homes":12284,"avg_assumable_rate":4.65,"avg_monthly_savings":303,"on_market_coverage":true,"listings_assumable_now":176},{"name":"78254","page":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78254","data":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78254.json","assumable_homes":9714,"avg_assumable_rate":4.54,"avg_monthly_savings":363,"on_market_coverage":true,"listings_assumable_now":170},{"name":"78252","page":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78252","data":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78252.json","assumable_homes":5731,"avg_assumable_rate":5.21,"avg_monthly_savings":215,"on_market_coverage":true,"listings_assumable_now":120},{"name":"78223","page":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78223","data":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78223.json","assumable_homes":3780,"avg_assumable_rate":4.84,"avg_monthly_savings":210,"on_market_coverage":true,"listings_assumable_now":63},{"name":"78250","page":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78250","data":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78250.json","assumable_homes":3269,"avg_assumable_rate":4.31,"avg_monthly_savings":267,"on_market_coverage":true,"listings_assumable_now":40},{"name":"78244","page":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78244","data":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78244.json","assumable_homes":3137,"avg_assumable_rate":4.36,"avg_monthly_savings":263,"on_market_coverage":true,"listings_assumable_now":50},{"name":"78247","page":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78247","data":"https://www.retrorate.com/assumable-mortgages/texas/san-antonio/78247.json","assumable_homes":3063,"avg_assumable_rate":4.36,"avg_monthly_savings":307,"on_market_coverage":true,"listings_assumable_now":50}]},"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"}}