If you are looking at San Antonio as a rental market in 2026, the city-level numbers look attractive: $260,000 median price, steady population growth, no state income tax, and a military-backed demand floor that most markets cannot touch. But San Antonio is a big metro with nearly 2.6 million people, and not every neighborhood produces good rental returns.
The difference between a cash-flowing rental and a money pit in San Antonio often comes down to one thing: which zip code you buy in.
This guide breaks down the top five zip codes for rental property investors in San Antonio, with specific data on rents, cap rates, tenant demographics, and acquisition strategies for each area. These are not hypothetical projections. These are the neighborhoods where active investors are buying right now and the numbers they are seeing on the ground.
How We Evaluated These Zip Codes
We analyzed San Antonio zip codes across five criteria:
1. Rent-to-price ratio: Monthly rent divided by acquisition price. Higher ratios mean better cash flow potential.
2. Cap rate range: Net operating income divided by acquisition price, using realistic expense assumptions (8% vacancy, 8% management, proper CapEx reserves).
3. Tenant demand drivers: Employment centers, military installations, schools, and transit access that create stable rental demand.
4. Off-market availability: Volume of distressed, probate, and motivated-seller properties that allow below-market acquisition.
5. Investor track record: Areas where active investors are already transacting and producing consistent returns.
Data sources include local MLS data, Redfin market reports, the Bexar County Appraisal District, and transaction data from Home Pros acquisitions in the San Antonio metro.
Zip Code 1: 78207 — Westside San Antonio
| Metric | Value |
|---|---|
| Average rent (3-bed SFR) | $1,250/month |
| Median acquisition price | $155,000 |
| Estimated cap rate | 6.5-6.8% |
| Rent-to-price ratio | 0.81% |
| Primary tenant profile | Working families, service sector |
| Average days on market | 105 days |
The Westside is San Antonio's highest-volume investor market for good reason. Acquisition prices consistently come in below $160,000 for 3-bed SFR properties, and rents have held in the $1,200 to $1,300 range even as the broader market has softened.
Why investors buy here: The Westside offers the best combination of affordable acquisition prices and stable rental demand in the San Antonio metro. It is close to downtown (less than 10 minutes), which provides service-sector employment access. The neighborhood has a strong Latino community with multi-generational families, creating low turnover rates for landlords who maintain their properties well.
Value-add opportunity: Many homes in 78207 were built between 1950 and 1980 and have not been updated. A $15,000 to $25,000 cosmetic renovation (new flooring, kitchen refresh, bathroom update, exterior paint) can increase rents by $150 to $200 per month. That renovation pays for itself in less than 12 months and significantly improves cap rates.
Watch out for: Foundation issues are present in some Westside properties due to age and soil conditions. Budget $500 for a foundation inspection before closing on any property built before 1975.
Zip Code 2: 78220 — East San Antonio
| Metric | Value |
|---|---|
| Average rent (3-bed SFR) | $1,200/month |
| Median acquisition price | $138,000 |
| Estimated cap rate | 6.8-7.1% |
| Rent-to-price ratio | 0.87% |
| Primary tenant profile | Working families, Section 8, blue-collar |
| Average days on market | 112 days |
East SA delivers the highest cap rates in the metro for investors who know how to source deals. The median acquisition price sits around $138,000, and many off-market deals trade below $120,000, which pushes cap rates above 7 percent with realistic underwriting.
Why investors buy here: The rent-to-price ratio is the strongest in San Antonio at 0.87 percent. Properties are affordable enough that even conservative underwriting produces positive cash flow from day one. The area has consistent demand from working families and Section 8 tenants.
Off-market sourcing: 78220 has one of the highest concentrations of probate properties and tax-delinquent parcels in Bexar County. Many homes have been in the same family for 30 to 40 years and come to market through estate sales. Investors who build relationships with local probate attorneys in this area gain access to deals that never appear on the MLS.
Watch out for: Some pockets of 78220 have higher crime rates. Screen tenants carefully and invest in properties on well-maintained streets. Drive the specific block before making an offer, because conditions can vary significantly from one street to the next.
Zip Code 3: 78228 — Lackland / Military Corridor
| Metric | Value |
|---|---|
| Average rent (3-bed SFR) | $1,400/month |
| Median acquisition price | $178,000 |
| Estimated cap rate | 5.8-6.2% |
| Rent-to-price ratio | 0.79% |
| Primary tenant profile | Military personnel, contractors, government |
| Average days on market | 89 days |
The Lackland corridor offers something rare in rental investing: a tenant base with government-backed income. Joint Base San Antonio-Lackland trains approximately 80,000 service members annually, and many permanent-party military and civilian employees rent in the surrounding neighborhoods.
Why investors buy here: Military tenants receive Basic Allowance for Housing (BAH) that covers or exceeds market rents. BAH rates for E-5 to E-7 enlisted personnel with dependents in San Antonio range from $1,350 to $1,600 per month in 2026, aligning perfectly with rents in 78228. This creates a reliable income stream with low default risk.
According to the Department of Defense BAH Calculator, San Antonio BAH rates have increased 3 to 4 percent annually over the past three years, providing built-in rent escalation.
Tenant stability: Military leases typically run 12 months, and turnover is predictable (PCS moves happen most frequently in summer). Vacancy between military tenants is usually 2 to 4 weeks, significantly below the San Antonio average.
Watch out for: The Servicemembers Civil Relief Act (SCRA) allows military tenants to break leases with 30 days notice upon PCS orders. This is a legal protection you cannot negotiate around. Budget for one unexpected vacancy per 3-year period.
Zip Code 4: 78210 — South Side
| Metric | Value |
|---|---|
| Average rent (3-bed SFR) | $1,180/month |
| Median acquisition price | $128,000 |
| Estimated cap rate | 6.5-7.0% |
| Rent-to-price ratio | 0.92% |
| Primary tenant profile | Working families, Section 8, multigenerational |
| Average days on market | 118 days |
The South Side has the lowest entry point and highest rent-to-price ratio of any zip code on this list. Investors who are willing to work with Section 8 tenants and manage value-add properties can achieve the strongest cash-on-cash returns in the San Antonio metro.
Why investors buy here: The math is simple. At $128,000 median acquisition and $1,180 in rent, the rent-to-price ratio hits 0.92 percent — the closest to the 1% rule of any San Antonio zip code. With a 25 percent down payment and realistic expenses, cash-on-cash returns can reach 10 to 14 percent for well-acquired properties.
Section 8 demand: The San Antonio Housing Authority maintains a significant waitlist for Section 8 vouchers. Landlords who accept Section 8 tenants benefit from government-guaranteed rent payments (the housing authority pays the majority of rent directly to the landlord). This reduces collection risk and keeps occupancy high.
Value-add strategy: Many South Side properties are listed at $100,000 to $120,000 and need $15,000 to $30,000 in renovation. After rehab, they appraise at $160,000 to $180,000, creating equity for a BRRRR refinance while renting at $1,200 to $1,350.Watch out for: Some South Side streets have higher deferred maintenance and environmental concerns (older lead paint, asbestos). Budget for environmental testing on any pre-1978 property per HUD's lead paint disclosure requirements.
Zip Code 5: 78250 — NW Medical Center
| Metric | Value |
|---|---|
| Average rent (3-bed SFR) | $1,550/month |
| Median acquisition price | $245,000 |
| Estimated cap rate | 5.5-5.8% |
| Rent-to-price ratio | 0.63% |
| Primary tenant profile | Healthcare professionals, young professionals |
| Average days on market | 78 days |
The NW Medical Center area is the premium rental zip code on this list. Cap rates are thinner, but what you give up in cash flow you gain in tenant quality, property appreciation, and lower management headaches.
Why investors buy here: The South Texas Medical Center is one of the largest medical complexes in the United States, employing tens of thousands of healthcare workers. These tenants have stable, above-average incomes, excellent credit, and long tenure. Turnover is lower than anywhere else in San Antonio.
Appreciation angle: While cash-on-cash returns are thinner at 5.5 to 5.8 percent cap rates, 78250 properties have appreciated 4 to 5 percent annually over the past five years, outpacing most other San Antonio zip codes. For investors with a 7 to 10 year hold horizon who focus on total return (cash flow plus appreciation), this area delivers.
Watch out for: Competition from new apartment construction. Several large multifamily projects have been built in the Medical Center corridor, which could pressure rents for SFR properties above $1,500 per month. Stick to 3-bed homes with yards, which compete less directly with apartments.
Comparing All Five Zip Codes
| Zip | Area | Avg Rent | Median Price | Cap Rate | Rent/Price | Best For |
|---|---|---|---|---|---|---|
| 78207 | Westside | $1,250 | $155K | 6.5-6.8% | 0.81% | Value-add, buy-and-hold |
| 78220 | East SA | $1,200 | $138K | 6.8-7.1% | 0.87% | Cash flow, probate deals |
| 78228 | Lackland | $1,400 | $178K | 5.8-6.2% | 0.79% | Military tenants, stability |
| 78210 | South Side | $1,180 | $128K | 6.5-7.0% | 0.92% | BRRRR, Section 8, highest cash-on-cash |
| 78250 | NW Medical | $1,550 | $245K | 5.5-5.8% | 0.63% | Appreciation, professional tenants |
How to Source Deals in These Zip Codes
The properties that produce the returns listed above are generally not available through standard MLS searches. They come through:
- Direct mail to absentee owners — Bexar County tax records show mailing addresses that differ from property addresses, indicating out-of-area landlords who may be ready to sell
- Probate court filings — Bexar County probate records identify inherited properties that heirs often want to sell quickly
- Tax delinquency rolls — The Bexar County Tax Office publishes delinquent property lists annually
- Wholesaler networks — Local acquisition companies like Home Pros source properties in all five zip codes and offer them to investors at below-market pricing
Want access to off-market rental properties in these San Antonio zip codes? Join the Home Pros Marketplace to see deals sourced by our local acquisition team.
Frequently Asked Questions
What zip codes in San Antonio have the highest rental demand?
78228 (Lackland military corridor) and 78250 (NW Medical Center) have the most consistent tenant demand due to large employment anchors. 78207 (Westside) and 78210 (South Side) have high demand driven by affordability and proximity to downtown employment.
What is the average rent for a 3-bedroom house in San Antonio in 2026?
Average rents range from $1,180 per month in the South Side (78210) to $1,550 per month near the Medical Center (78250). The metro-wide average for a 3-bed SFR is approximately $1,350 per month.
Which San Antonio neighborhoods have the best cap rates for buy-and-hold investors?
East San Antonio (78220) and the South Side (78210) offer the highest cap rates at 6.5 to 7.1 percent. These areas have the lowest acquisition prices in the metro, pushing returns higher for investors who are comfortable with the tenant profile and property management requirements.
Is Bexar County a landlord-friendly area in Texas?
Yes. Texas is one of the most landlord-friendly states in the country. There is no rent control, eviction timelines are relatively fast (3-4 weeks from notice to possession through Bexar County courts), and there is no state income tax on rental income.
What is a realistic cash-on-cash return for a rental property in San Antonio?
With conservative underwriting (8% vacancy, 8% management, proper reserves), most San Antonio rentals in the top-performing zip codes deliver 6 to 12 percent cash-on-cash returns. The highest returns come from value-add properties in 78210 and 78220 where below-market acquisition is possible.
Home Pros acquires and manages investment properties across San Antonio, Dallas, and 46 other markets. Our data comes from active transactions and local market expertise. This guide is for educational purposes and does not constitute investment advice. All real estate investments carry risk. Consult a financial advisor before making investment decisions.