Real Estate Investing in San Marcos, Texas (78666)

Hays County • Population: 87,775 • Data updated: June 2026

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Should you buy in 78666 (San Marcos, TX)? Our answer, based on the numbers below.

🏠 For Homebuyers
CAUTION
Grade D (46/100)

Proceed carefully. Weak appreciation or affordability makes this a harder case for most buyers.

📈 For Investors
WEAK
2.0 / 5 (33/100)

Structural challenges here. The numbers may look cheap but operational risk is high. Only for experienced, hands-on investors.

⚠️ Risks to Know
CLEAN

No major risk flags on the data we track.

What’s happening in San Marcos, TX (78666)?

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2.0/ 5

Investability

Overall investment appeal

1.0/ 5

Appreciation

Long-term value growth

3.0/ 5

Cashflow ROI

Rental yield potential

Avg Home Value $316,261
Avg Monthly Rent $1,399
1% Rule ✗ Does Not Meet
Median Income $52,432
% Renters 62.6%

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.

Explore the Data — Click a Tab Below
🏦 Current 30-yr Fixed Mortgage Rate: 6.49% as of Jun 25 Source: Freddie Mac PMMS

Here's what matters if you're considering buying a home in San Marcos:

C+ Average
Buy Confidence Score: 63/100
Affordability
10/25
Appreciation
14/25
Stability
14/20
Timing
10/15
Rental backup
15/15
Affordability
Expensive
Homes cost 6× the median income
Value Trend
Declining (-1.8%)
How home values changed in the past year
Rental Backup
Strong
Could rent for $1,399/mo if you need to move
Market Conditions
COOL
More inventory, negotiating room for buyers
Bottom Line: Mixed signals in this market. Research specific properties carefully and be prepared to negotiate.
❄️
COOL MARKET
Austin-Round Rock-Georgetown, TX Metro Area
More inventory, negotiating room for buyers
79 days
Average time to sell
Slow
9.6%
Listings with price cuts
Few Cuts
0.0%
Sale price vs asking
Below Ask
0.0%
Income needed for mortgage
Affordable
📅 Market conditions as of June 20, 2026 — updated weekly from Austin-Round Rock-Georgetown, TX metro data
🏠

Property Strategy for 78666

Which property type performs best in this market?

Best for Cash Flow
3BR
4.5% cap rate
Best for Appreciation
3BR
+4.3% 5yr CAGR
Best Overall Value
5BR
$86,961/bedroom
📊 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)

$404K$351K$299K$246K$193K$141KJan 2007Sep 2016May 2026

Rent History (with trend line)

$1,536$1,426$1,317$1,208$1,099$990May 2016May 2021May 2026

📊 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% - -
💡 Why Invest in 78666? Click to expand

63% of households rent in this area, creating consistent tenant demand for landlords.

📊 See where this ZIP ranks in our Best-of lists →
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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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Property managers serving Hays County

Manage rentals here? List your business →
Jenkins Property Management
Dripping Springs, TX

Jenkins Property Management provides property management services. summary from their website

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Listings are shown for convenience — Repit doesn’t endorse or vet these companies. Ratings shown come only from email-verified visitors.

Investability
Fair
Cap Rate
3.5%
Low
5yr Growth
+1.9%
Slow

📊 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% ▲
Negative Leverage — IRR / Tax Play Cap Rate: 3.5%  |  30yr Rate: 6.5%
Leverage reduces cash returns at current rates.

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.

Vacancy
7.7%
Low risk
Landlord Climate
5.0/5
Friendly
Value Trend (5yr)
+1.9%
Flat
Eviction process: Fast Rent control: Favorable

Demographics in 78666

Population: 87,775

💰 Median Household Income
$52,432
This area
$52,432
State
$70,593
USA
$74,580
🏠 Renter Occupied
62.6%
This area
62.6%
State
29.5%
USA
34.0%
💼 Unemployment Rate
4.1%
This area
4.1%
State
-25.4%
USA
3.7%
🎓 College Educated
33.3%
This area
33.3%
State
-5.8%
USA
33.7%
👤 Median Age
26.5 years
This area
26.5 years
State
-3.7 years
USA
38.9 years
🏚️ Vacancy Rate
7.7%
This area
7.7%
State
18.3%
USA
10.5%
👥 Population by Ethnicity
White 67.7%
Other/Mixed 24.9%
Hispanic/Latino 21.4%
Black/African American 5.6%
Asian 1.8%
👶 Under 18
14.3%
This area
14.3%
USA
22.0%
👴 65 and Over
10.9%
This area
10.9%
USA
17.3%
📊 Poverty Rate
11.2%
This area
11.2%
USA
11.5%

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

B+ Avg School Grade
15 Schools
12.5:1 Avg Class Size
$15,154 Avg Per Pupil

Schools in This ZIP Code

A Very Good

BLANCO VISTA EL

📚 Pre-K – 05 Elementary
👥
718 Students
👨‍🏫
14.2:1 Class Size
💰
$15,976 Per Student
A Very Good

KI CHARTER ACADEMY

📚 02 – 12 High School Charter
👥
194 Students
👨‍🏫
7.9:1 Class Size
💰
$21,747 Per Student
A Very Good

MENDEZ EL

📚 K – 05 Elementary
👥
540 Students
👨‍🏫
11.5:1 Class Size
💰
$13,673 Per Student
A Very Good

RODRIGUEZ EL

📚 K – 05 Elementary
👥
436 Students
👨‍🏫
11.4:1 Class Size
💰
$13,673 Per Student
A Very Good

TRAVIS EL

📚 K – 05 Elementary
👥
470 Students
👨‍🏫
11.7:1 Class Size
💰
$13,673 Per Student
B+ Above Average

TEXAS PREPARATORY SCHOOL

📚 K – 06 School Charter
👥
61 Students
👨‍🏫
9.3:1 Class Size
💰
$22,192 Per Student
B+ Above Average

BOWIE EL

📚 K – 05 Elementary
👥
577 Students
👨‍🏫
14.5:1 Class Size
💰
$13,673 Per Student
B+ Above Average

CROCKETT EL

📚 K – 05 Elementary
👥
487 Students
👨‍🏫
13.2:1 Class Size
💰
$13,673 Per Student
B+ Above Average

DEZAVALA EL

📚 K – 05 Elementary
👥
591 Students
👨‍🏫
12.7:1 Class Size
💰
$13,673 Per Student
B+ Above Average

HERNANDEZ EL

📚 K – 05 Elementary
👥
531 Students
👨‍🏫
12.0:1 Class Size
💰
$13,673 Per Student
B+ Above Average

GOODNIGHT MIDDLE

📚 06 – 08 Middle
👥
867 Students
👨‍🏫
13.5:1 Class Size
💰
$13,673 Per Student
B+ Above Average

MILLER MIDDLE

📚 06 – 08 Middle
👥
908 Students
👨‍🏫
13.8:1 Class Size
💰
$13,673 Per Student
B Good

BONHAM PRE-K SCHOOL

📚 Grade PK Elementary
👥
410 Students
👨‍🏫
15.8:1 Class Size
💰
$13,673 Per Student
B Good

HAYS INSPIRE ACADEMY

📚 07 – 12 High School Charter
👥
28 Students
👨‍🏫
11.5:1 Class Size
💰
$16,995 Per Student
C+ Average

SAN MARCOS H S

📚 09 – 12 High School
👥
2,494 Students
👨‍🏫
14.8:1 Class Size
💰
$13,673 Per Student
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

3 Nearby 1,665 Off-Campus Students
C+
Texas State University
38,722 students · 2.2 mi
C
Total Transformation Institute of Cosmetology
94 students · 3.6 mi
C+
William Edge Institute
40 students · 14.7 mi

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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