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View PropertiesAs of Apr, 27 2026
Rabbu ROI Score
Port Isabel offers attractive short-term rental potential, with a balance of healthy demand and revenue relative to property values.
Port Isabel, TX presents an appealing short-term rental opportunity driven by its coastal location on the southern tip of Texas near South Padre Island. With an average annual revenue of $28,577 across 136 active listings and an occupancy rate of 44% — well above the 33% state average — the market demonstrates genuine visitor demand. An above-average revenue-to-price ratio and average home values around $394,990 create a favorable entry point for investors seeking beach-adjacent returns without big-city price tags.
According to Rabbu market data, the Port Isabel short-term rental market shows:
| Metric | Context | Value |
|---|---|---|
| Active Airbnb Listings | As of Apr, 27 2026 | 136 |
| Average Daily Rate (ADR) | vs. $276 state avg. | $194 |
| Average Occupancy Rate | vs. 33% state avg. | 44% |
| RevPAN | ADR * Occupancy Rate | $85 |
| Average Monthly Revenue | Historical 12-month average | $2,381 |
| Average Annual Revenue | Historical 12-month average | $28,577 |
Data sources: Rabbu proprietary analytics as of Apr, 27 2026 and Zillow Home Value Index (ZHVI) as of Mar, 17 2026.
Port Isabel attracts STR investors with its strong revenue-to-price ratio and proximity to one of Texas's most popular beach destinations, offering above-average occupancy relative to the state.
Key investment factors
"Port Isabel earns an ROI score of 55 out of 100, placing it in the "Attractive Opportunity" tier — a market where healthy demand and a favorable revenue-to-price ratio give investors a real shot at solid returns. Seasonality is pronounced: July generates nearly $5,926 in average monthly revenue, while the October–January stretch hovers around $1,000–$1,300, creating a roughly 5:1 peak-to-trough spread. The market's above-average revenue-to-price ratio is its strongest asset, though below-average marks on growth trend and supply/demand balance suggest the recent surge in new listings (153% YoY) warrants attention. Investors who can price competitively during shoulder months and capitalize on the summer and spring break peaks will be best positioned."
— Rabbu Market Analysis Team
Revenue in Port Isabel is heavily seasonal, peaking in July at $5,926 and bottoming out in November at just $1,015 — a nearly 6:1 spread. Spring break drives a secondary spike in March ($3,762), giving investors two distinct earning windows to optimize around while planning for lean fall and winter months.
| Month | Trend | Revenue |
|---|---|---|
| January |
|
$1,305 |
| February |
|
$1,850 |
| March |
|
$3,762 |
| April |
|
$1,653 |
| May |
|
$2,145 |
| June |
|
$3,933 |
| July |
|
$5,926 |
| August |
|
$3,350 |
| September |
|
$1,388 |
| October |
|
$1,132 |
| November |
|
$1,015 |
| December |
|
$1,113 |
Two-bedroom properties lead supply with 50 listings, followed closely by 3-bedrooms (41) and 1-bedrooms (36), while 5-bedroom units are scarce with only 5 listings. The thin supply of larger properties could signal an opportunity for investors willing to acquire or build bigger homes to capture premium nightly rates with limited competition.
| Size | Trend | Value |
|---|---|---|
| 1 bedroom |
|
36 |
| 2 bedrooms |
|
50 |
| 3 bedrooms |
|
41 |
| 5 bedrooms |
|
5 |
ADR scales sharply with size in Port Isabel: 1-bedrooms average $115 per night, while 5-bedroom properties command $681 — nearly six times the rate. The jump from 2-bedrooms ($168) to 3-bedrooms ($235) represents a meaningful $67 premium that, combined with strong occupancy, makes 3-bedroom units a compelling sweet spot for rate versus acquisition cost.
| Size | Trend | Value |
|---|---|---|
| 1 bedroom |
|
$115 |
| 2 bedrooms |
|
$168 |
| 3 bedrooms |
|
$235 |
| 5 bedrooms |
|
$681 |
Three-bedroom listings deliver the highest RevPAN at $112, outperforming both smaller units (1-bedroom at $47, 2-bedroom at $81) and the much larger 5-bedroom category, which drops to just $64 despite its sky-high ADR. This suggests that while 5-bedroom homes can charge premium rates, their low occupancy significantly erodes per-night revenue efficiency.
| Size | Trend | Value |
|---|---|---|
| 1 bedroom |
|
$47 |
| 2 bedrooms |
|
$81 |
| 3 bedrooms |
|
$112 |
| 5 bedrooms |
|
$64 |
Two- and three-bedroom properties share the highest occupancy at 48%, while 1-bedrooms trail slightly at 41%. Five-bedroom units sit at just 9% occupancy, indicating that large-group demand in Port Isabel is extremely limited and these properties face significant vacancy challenges.
| Size | Trend | Value |
|---|---|---|
| 1 bedroom |
|
41% |
| 2 bedrooms |
|
48% |
| 3 bedrooms |
|
48% |
| 5 bedrooms |
|
9% |
Monthly revenue climbs steadily from $1,508 for 1-bedrooms to $3,761 for 3-bedrooms, with 5-bedroom properties averaging $8,723 per month despite their very low occupancy — suggesting that when they do book, the nightly rates are high enough to drive outsized revenue. For most investors, the 3-bedroom segment offers the most reliable monthly income without the vacancy risk of larger homes.
| Size | Trend | Value |
|---|---|---|
| 1 bedroom |
|
$1,508 |
| 2 bedrooms |
|
$2,196 |
| 3 bedrooms |
|
$3,761 |
| 5 bedrooms |
|
$8,723 |
Three-bedroom properties generate $45,141 annually, making them the most balanced option for return potential relative to manageable acquisition costs in Port Isabel. While 5-bedroom homes lead at $104,683 per year, their 9% occupancy rate means that revenue is concentrated in very few bookings, creating significant cash-flow volatility.
| Size | Trend | Value |
|---|---|---|
| 1 bedroom |
|
$18,096 |
| 2 bedrooms |
|
$26,353 |
| 3 bedrooms |
|
$45,141 |
| 5 bedrooms |
|
$104,683 |
Kitchens (93%), parking (92%), and self check-in (85%) are near-universal among Port Isabel listings, reflecting baseline guest expectations for a coastal vacation rental. The high prevalence of pools (73%), patios or balconies (70%), and BBQ grills (68%) signals that outdoor living amenities are table stakes in this beach market — investors lacking these features may struggle to compete.
| Amenity | Trend | Value |
|---|---|---|
| Kitchen |
|
93% |
| Parking |
|
92% |
| Self Check-in |
|
85% |
| Washer |
|
79% |
| Dryer |
|
75% |
| Pool |
|
73% |
| Patio or Balcony |
|
70% |
| BBQ Grill |
|
68% |
| Outdoor Furniture |
|
67% |
| Backyard |
|
47% |
| Workspace |
|
46% |
| Hot Tub |
|
43% |
| Waterfront |
|
43% |
| Pets |
|
40% |
Rabbu's ROI Score is a proprietary metric that evaluates short-term rental investment potential based on multiple factors.
| Factor | Port Isabel Performance | Weight |
|---|---|---|
| Revenue-to-Price Ratio | Above average | 40% |
| Occupancy Stability | Average | 30% |
| Market Growth Trend | Below average | 15% |
| Supply/Demand Balance | Below average | 15% |
Port Isabel's ROI score of 55 out of 100 places it in the "Attractive Opportunity" band, anchored by an above-average revenue-to-price ratio that reflects favorable earning potential relative to property costs around $395K. Occupancy stability scores average, while market growth trend and supply/demand balance both come in below average — a reflection of the 153% year-over-year listing growth that's adding competitive pressure. Investors should pair these data insights with thorough local regulatory research and a clear plan for managing seasonal revenue swings before committing capital.
Understanding local STR regulations is essential before investing in Port Isabel. Here's the current regulatory landscape:
Short-term rental operators in Port Isabel, TX may be required to obtain a permit or register their property with local authorities before listing. Investors should verify current requirements directly with the City of Port Isabel and Cameron County, as regulations in Texas coastal communities can evolve.
Common STR restrictions in similar Texas markets include occupancy limits tied to bedroom count, noise ordinances, parking requirements, and potential HOA covenants that may prohibit or limit short-term rentals. Some jurisdictions also impose minimum stay requirements or cap the total number of active permits, so confirming these details before purchase is strongly recommended.
Short-term rental hosts in Texas are generally subject to the state hotel occupancy tax (currently 6%) and may owe additional local hotel or tourism taxes to the city or county. Many booking platforms collect and remit these taxes on the host's behalf, but operators should confirm their specific obligations with the Texas Comptroller's office and local tax authorities.
Regulations subject to change. Always verify with local authorities before purchasing. A Rabbu partner agent specializing in Port Isabel can provide current regulatory guidance.
Financing an Airbnb investment in Port Isabel requires lenders who understand STR income. Rabbu partner lenders offer:
"Over the next 12–18 months, Port Isabel's STR market is likely to see continued seasonal demand concentrated in the summer months, with July historically the standout performer. The 153% year-over-year growth in active listings signals rising investor interest, which could put modest downward pressure on occupancy and ADR if supply outpaces demand. Investors should anticipate occupancy rates hovering in the 42–47% range annually, with ADR potentially holding steady or experiencing a slight 1–3% increase during peak months. Managing through the softer fall and winter months — when revenue dips below $1,200 — will be key to maintaining positive cash flow year-round."
— Rabbu Market Analysis Team
Rabbu provides Airbnb and short-term rental market data and statistics across the United States. Our mission is to empower investors with accurate insights and easy-to-use tools, so they can confidently identify and act on the best opportunities in the Airbnb market.
Rabbu proprietary analytics as of Apr, 27 2026 and Zillow Home Value Index (ZHVI) as of Mar, 17 2026. Revenue projections are estimates based on comparable properties and do not guarantee future performance. Data reflects trailing 12-month averages as of April 2026 and may not capture very recent market shifts. Local regulations, HOA rules, and tax obligations vary and should be independently verified before investing.
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