Unshakable ZIP Data 48889 | Sumner, MI Housing Market
Sumner · Gratiot County · Alma, MI metro · Michigan · Data updated June 19, 2026
The average single-family home value in ZIP 48889, Sumner, Michigan is $218,121.
Value anchors
| Metric | Value | Year over year |
|---|---|---|
| Average single-family value | $218,121 | |
| Median new listing price | $94,145 | -55.2% |
| National size rank | 21,698 |
Sales activity
| Metric | Value | Year over year |
|---|---|---|
| New listings | 2 | -32.3% |
| Active listings | 3 | -49.4% |
| Pending sales | 1 | -49.3% |
These figures describe the single-family market for Sumner, Michigan ZIP 48889. They are market context, not a substitute for sold comps or a formal appraisal.