Unshakable ZIP Data 21655 | Preston, MD Housing Market
Preston · Caroline County · Maryland · Data updated June 19, 2026
The median sale price in ZIP 21655, Preston, Maryland is $217,449 at $87 per square foot. 6 single-family homes sold in the latest period, down 48.5 percent from a year earlier. Homes sit a median of 43 days on market with 12.8 months of supply. Sellers are getting 97.5 percent of list price and 0.0 percent of homes sold above asking.
Buyer leverage market. Negotiate hard.
Value anchors
| Metric | Value | Year over year |
|---|---|---|
| Average single-family value | $340,664 | |
| Average price per sq ft | $136 | |
| Median sale price | $217,449 | |
| Median sale price per sq ft | $87 | |
| Median home size | 2,499 sq ft | |
| Median new listing price | $349,463 | -20.4% |
| National size rank | 14,683 |
Sales activity
| Metric | Value | Year over year |
|---|---|---|
| Homes sold | 6 | -48.5% |
| Median days on market | 43 days | |
| Months of supply | 12.8 months | |
| New listings | 22 | +71.8% |
| Active listings | 37 | +44.1% |
| Pending sales | 17 | +7.7% |
Pricing power
| Metric | Value | Year over year |
|---|---|---|
| Average sale-to-list ratio | 97.5% | +5.0 pts |
| Share sold above list | 0.0% | -8.3 pts |
Bedroom value anchors
Average values by bedroom count. Value anchors for orientation, not appraisals.
3-bedroom
$336,538
4-bedroom
$407,411
These figures describe the single-family market for Preston, Maryland ZIP 21655. They are market context, not a substitute for sold comps or a formal appraisal.