Real Estate Investing in San Marcos, Texas (78666)
Should you buy in 78666 (San Marcos, TX)? Our answer, based on the numbers below.
Proceed carefully. Weak appreciation or affordability makes this a harder case for most buyers.
Structural challenges here. The numbers may look cheap but operational risk is high. Only for experienced, hands-on investors.
No major risk flags on the data we track.
What’s happening in San Marcos, TX (78666)?
Click any question — our AI will research it live from the web and show you sources.
Market Analysis: 78666 San Marcos
On the rental side, ZIP 78666 has challenges — vacancy pressure, softer price growth, and tenant stability concerns sit alongside the $316K median. It rewards specialists, not generalists.
If the plan assumes clean turnover, on-time rent, and low maintenance on a $316K asset, 78666 is the wrong submarket. If the plan prices in friction, the yield can still work.
Statewide comparisons place 78666 among TX's softer markets. That context does not make the ZIP uninvestable, but it does raise the bar for due diligence.
From a cash-flow lens, 87,775 residents fill the ZIP, renter turnover runs higher than neighboring postal codes and delinquency risk is a real line item rather than a theoretical one.
seems to the ZIP is not uninvestable, but it is unforgiving. Section 8 landlords, local operators, and specialized value-add funds are the investor types that tend to succeed.
Here's what matters if you're considering buying a home in San Marcos:
Property Strategy for 78666
Which property type performs best in this market?
📊 Compare All Property Types →
| Type | Median Value | Est. Rent | Cap Rate | 5yr CAGR | $/Bedroom |
|---|---|---|---|---|---|
| 2BR | $273,614 | $1,480 | 3.9% | +3.5% | $136,807 |
| 3BR | $297,622 | $1,880 | 4.5% | +4.3% | $99,207 |
| 4BR | $358,184 | $2,200 | 4.4% | +4.0% | $89,546 |
| 5BR | $434,806 | — | — | +3.4% | $86,961 |
Market Trends
Home Value History (with trend line)
Rent History (with trend line)
📊 How Does 78666 Compare?
| Metric | 78666 | San Marcos | Austin-Round Rock-Georgetown, TX | Texas |
|---|---|---|---|---|
| Home Value | $316,261 | $316,261 | N/A | $297,000 |
| 5-Year CAGR | 1.9% | 1.9% | N/A | 5.4% |
| Avg Rent | $1,399 | $1,399 | N/A | - |
| Cap Rate | 3.5% | 3.5% | - | - |
Similar ZIPs Within 25 Miles
Compare other nearby markets to see if a neighbor offers a better fit.
Landlord Ground Truth
Real numbers from people who own or manage rentals in ZIP 78666 (San Marcos, TX). Anonymous, moderated, never written by AI.
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📊 Market Snapshot
| Home Value | $316,261 |
| Monthly Rent | $1,399 |
| Price-to-Rent | 18.8:1 |
| 1% Rule | ✗ Fails |
💰 Return Metrics
| Gross Yield | 5.3% |
| Cap Rate | 3.5% |
| 5-Year IRR | 5.4% |
📈 Home Appreciation
| 1-Year | -1.8% ▼ |
| 3-Year CAGR | -3.3% ▼ |
| 5-Year CAGR | +1.9% ▲ |
| 10-Year CAGR | +4.4% ▲ |
🏠 Rent Trends
| 1-Year | -2.9% ▼ |
| 3-Year CAGR | -2.2% ▼ |
| 5-Year CAGR | +2.4% ▲ |
The current 30-yr mortgage rate (6.5%) exceeds the estimated cap rate (3.5%). Financing reduces your cash-on-cash return below the cap rate. Markets like this may still make sense as IRR plays — factoring in appreciation, depreciation, and a future refinance when rates drop.
Run an IRR Analysis →⚠️ Risk Signals
Composite view of factors that can impact a ZIP's stability and your downside risk.
Demographics in 78666
Population: 87,775
Crime & Safety
Crime & Safety Data Coming Soon
We're integrating comprehensive crime statistics including violent crime rates, property crime, and safety scores to help you make informed investment decisions.
Expected: Q1 2025
🎓 Schools in 78666
Schools in This ZIP Code
About Repit School Scores
Traditional school ratings rely heavily on standardized test scores, which often reflect family income more than school quality. Repit takes a different approach.
We evaluate schools based on factors that research shows actually impact educational outcomes:
- Class Size — Smaller classes mean more individual attention
- School Funding — Resources available for programs, staff, and facilities
- Community Factors — Neighborhood characteristics that influence student success
- School Environment — Size, type, and structure
Scores are updated annually using federal education data.
🎓 Nearby Colleges & Universities
Investor Insight: With 1,665 students living off-campus nearby, this area has strong rental demand from the college population.
Frequently Asked Questions
What is the average home sale price in San Marcos, TX?
Typical homes in San Marcos, TX go for around $316K. The 5-year CAGR of 0.0% measured price movement.
How do experienced investors play San Marcos, TX?
Investors who focus on careful cash-flow rentals with hands-on management typically do well in San Marcos, TX. The numbers - $316K homes against $1,399/mo rents - support that play.
Is real estate in San Marcos, TX a good investment right now?
San Marcos, TX rates 2.0/5 for investability. With median values at $316K and rents near $1,399/mo, the market offers reasonable fundamentals for rental investors.
Does San Marcos, TX favor landlords or tenants?
Rental owners in San Marcos, TX deal with a landlord-friendly legal framework. Most standard eviction processes run on reasonable timelines.
How strong is the working-renter base in San Marcos, TX?
The renter base in San Marcos, TX is reasonable for the $1,399/mo price point. Screening well and pricing to market typically yields reliable tenants.
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