Port Isabel, TX 78578 housing market
Data through Aug 2026 · Balanced market · leverage 92
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Home Value
$263,874
+2.7% vs. a year ago
Buyer Leverage Score
92
Sep 2026
Months of Supply
8.2 months
Aug 2026
Days on Market
88 days
Sep 2026
Price Cut %
21%
Sep 2026
Sale-to-List Ratio
95.0%
Aug 2026
Mtg Payment as % of Income
43%
Aug 2026
Overvalued %
12%
Aug 2026
Expected Disaster Loss
$179
Dec 2025
What this means
- Valuation. Prices are 12% above what local incomes have historically supported (this area's pre-2020 price-to-income ratio).
- Prices. Home values are up 2.7% over the past year (U.S.: +1.2%).
- Supply. Listings are 12% below the 2017-19 norm and falling (−6% vs. a year ago), still somewhat tight.
- Negotiating. Buyer leverage is high (92/100; U.S.: 54): homes sell for about 4.9% below their final list price; 21% of listings had a price cut (U.S.: 26%).
- Affordability. A mortgage on the typical home takes 43% of the median household income (U.S.: 35%); it takes about $74k a year to keep the payment at 30% of gross pay. That includes about $1,892 a year for home insurance (U.S.: $1,790).
- Disaster risk. FEMA expects about $179 a year in natural-disaster damage per $100k of building value (U.S.: $155), mostly from hurricanes.
- Outlook. No clear direction: likely −7% to +9% over the next 12 months (63% chance of a rise).
Next 12 months
No clear direction
A rise is somewhat more likely than a fall, but not by enough to call. Likely change: −7.4% to +8.9% (80% range; middle estimate +1.9%), chance of a rise 63%, of a 5%+ drop 15%.
HouseVane's model, refit every month on local market signals and national ones, trained only on data known at the time. How accurate it has been.
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Other ZIP codes in Cameron County, TX
| Area | Home value | 1-year change | Buyer leverage |
|---|---|---|---|
| Brownsville, TX 78521 | $174.5K | +1.3% | 87 |
| Brownsville, TX 78520 | $194.8K | +1.9% | 94 |
| Brownsville, TX 78526 | $238.6K | +2.7% | 71 |
| Harlingen, TX 78550 | $182.3K | −2.1% | 92 |
| San Benito, TX 78586 | $166.9K | +4.8% | 99 |
| Harlingen, TX 78552 | $226.3K | −1.3% | 67 |
| Los Fresnos, TX 78566 | $228.3K | +2.0% | 51 |
| La Feria, TX 78559 | $185.5K | +1.5% | 66 |
| Santa Rosa, TX 78593 | $158K | +2.5% | 99 |
| Rio Hondo, TX 78583 | $215.9K | +4.7% | 44 |
| Rancho Viejo, TX 78575 | $289.2K | +4.7% | 57 |
| South Padre Island, TX 78597 | $439.9K | +2.4% | 88 |
| ZIP 78592 | – | – | 89 |
| Combes, TX 78535 | – | – | 33 |
| ZIP 78567 | – | – | 71 |