San Marcos, TX—78666
Real Estate Data & Market Trends
Key Metrics at a Glance
Home Price Trends — San Marcos, TX
As of Aug '25, the median home price in San Marcos, TX is $319,000, with a year-over-year change of -5.0%. This indicates that home prices in San Marcos, TX are decreasing. According to Zillow, the 1-year price projection is -1.7%, suggesting a decrease housing market in the next year.
Cost per Home Size
| Home Size | Median Home Value | YoY % Change |
|---|---|---|
1 Bed | N/A | N/A |
2 Bed | $280,000 | -6.7% |
3 Bed | $303,000 | -5.6% |
4 Bed | $365,000 | -5.2% |
| 5 Bed | $443,000 | -5.9% |
Rental Trends — San Marcos, TX
As of Jul '25, the average rent in San Marcos, TX is $1,670, with a year-over-year rent change of -5.6%. 1-bedroom units average $1,080 (3.8%); 2-bedroom units average $1,430 (-4.7%); 3-bedroom units average $1,880 (-0.5%); 4-bedroom units average $2,240 (-3.9%)
| Type | Median Rent | Average Rent |
|---|---|---|
| Average Rent | $1,650 | $1,670 |
| Studio Rent | $979 | $1,030 |
| 1 Bed Rent | $1,020 | $1,080 |
| 2 Bed Rent | $1,400 | $1,430 |
| 3 Bed Rent | $1,850 | $1,880 |
| 4 Bed Rent | $2,200 | $2,240 |
Property Listings — San Marcos, TX
As of Aug '25 and according to Realtor.com, the median days on market for a home in San Marcos, TX is 81. This is an increase of 22.0% from last year. This indicates that homes are sitting on the market longer than last year. The percentage of listed homes with a reduced price is 43.0%. This is a large percentage of inventory, suggesting a lot of supply pressure on home prices.
| Metric | Zip Code Average | Year over Year % Change |
|---|---|---|
Median Listing Price | $373,000 | -4.0% |
Listing Count | 560 | N/A |
| Listings as % of Homes | 1.1% | N/A |
Days on Market | 81 | 22.0% |
Demographics — San Marcos, TX
| Metric | Latest Census | YoY % Change |
|---|---|---|
Population | 87,800 | 10.7% |
% Under 18 | 13.8% | -12.7% |
| % Under 5 | N/A | N/A |
% Seniors | 12.5% | 45.3% |
% WFH | 9.4% | 176.5% |
% w/ College Degree | 34.6% | 13.8% |
Race and Ethnicity
| Metric | Latest Census | 5-Year % Change |
|---|---|---|
% White | 44.7% | -6.9% |
% Black | 5.2% | -8.8% |
% Hispanic | 43.8% | 2.8% |
% Asian | 1.8% | -10.0% |
% Foreign Born | 7.8% | -7.1% |
Mortgage and Risk — San Marcos, TX
According to the latest data from the U.S. Department of Housing and Urban Development (HUD) as of 2023, the number of mortgages originated in San Marcos, TX in that year was 1103. 66.0% of all primary home loans were conventional, the remainder were government-backed loans, such as FHA loans. The average loan-to-value for all loans was 77.0%. Of those, 44.0% were >90% loan to value. This is considered very high, suggesting that mortgage risk is large in San Marcos, TX. Investor activity in San Marcos, TX is low, as 4.0% of all loans are originated by investors. In 2023, 9.0% of all loans were cash-out refinances, suggesting few homeowners are actively tapping their home's equity.
Mortgages
| Metric | Zip Code Average | Metro Average | State Average |
|---|---|---|---|
Total Loan Originations | 1,103 | N/A | N/A |
% Conventional Loans | 66.0% | N/A | N/A |
% Government Loans | 34.0% | N/A | N/A |
% Investor Loans | 4.0% | N/A | N/A |
% Second Loans | 1.0% | N/A | N/A |
% Cash Out Refinance | 9.0% | N/A | N/A |
Rentals and Section 8 — San Marcos, TX
As of 2024, the percent of homes in San Marcos, TX under the Section 8 program is 1.5%. This is considered low, suggesting that the neighborhood is sparsely composed of Section 8 homes. Section 8 opportunity is good when HUD pays homeowners more than the average rental market rate for various home sizes. For each bedroom size, the average difference between HUD payments and market rents is shown in the table below.
Section 8 Market Size
Total Units under HUD | 590 |
Total Units Section 8 | 303 |
% Rentals under Section 8 | 1.5% |
% Occupied Section 8 | 89.0% |
Section 8 Opportunity
| Home Size | HUD Premium | Market Rent | Max HUD Rent |
|---|---|---|---|
| 1 Bedroom | $280 | $1,020 | $1,300 |
| 2 Bedroom | $140 | $1,400 | $1,540 |
| 3 Bedroom | $110 | $1,850 | $1,960 |
| 4 Bedroom | $80 | $2,200 | $2,280 |
Affordability — San Marcos, TX
Home Price to Income Ratio
| Metric | Zip Code Average | Metro Average | State Average |
|---|---|---|---|
| Home Price to Income Ratio | 6.6 | N/A | N/A |
| Median Home Price | $319,000 | N/A | N/A |
| Median Household Income | $55,500 | N/A | N/A |