Unshakable ZIP Data 78573 | Alton, TX Housing Market
Alton · Hidalgo County · McAllen-Edinburg-Mission, TX metro · Texas · Data updated June 19, 2026
The median sale price in ZIP 78573, Alton, Texas is $274,419 at $168 per square foot. 70 single-family homes sold in the latest period, down 12.5 percent from a year earlier. Homes sit a median of 126 days on market with 12.7 months of supply. Sellers are getting 97.4 percent of list price and 11.8 percent of homes sold above asking.
Buyer leverage market. Negotiate hard.
Value anchors
| Metric | Value | Year over year |
|---|---|---|
| Average single-family value | $217,817 | |
| Average price per sq ft | $133 | |
| Median sale price | $274,419 | |
| Median sale price per sq ft | $168 | |
| Median home size | 1,638 sq ft | |
| Median new listing price | $287,443 | -4.2% |
| National size rank | 1,536 |
Sales activity
| Metric | Value | Year over year |
|---|---|---|
| Homes sold | 70 | -12.5% |
| Median days on market | 126 days | |
| Months of supply | 12.7 months | |
| New listings | 180 | +21.4% |
| Active listings | 402 | +9.6% |
| Pending sales | 83 | -11.6% |
Pricing power
| Metric | Value | Year over year |
|---|---|---|
| Average sale-to-list ratio | 97.4% | -0.6 pts |
| Share sold above list | 11.8% | +1.8 pts |
Bedroom value anchors
Average values by bedroom count. Value anchors for orientation, not appraisals.
1-bedroom
$125,460
2-bedroom
$130,807
3-bedroom
$208,605
4-bedroom
$327,925
5-bedroom
$569,572
These figures describe the single-family market for Alton, Texas ZIP 78573. They are market context, not a substitute for sold comps or a formal appraisal.