San Marcos, TX Housing Market 2026: What Homes Actually Sell For

If you invest in or around San Marcos, the number that matters is what homes actually close for, not what sellers are asking. Here is what San Marcos sale prices look like right now, built from the closings Resideline tracked over the last six months, as of September 2026.

The snapshot

• •Closings tracked, last 6 months: 310
• •Median sold price, last 6 months: $311,990
• •Median sold $/sqft, last 6 months: $182
• •Middle half of sales closed between: $270,000 and $429,331

What the numbers say

Resideline tracked 310 closed sales in San Marcos over the last six months, with a median closing price of $311,990. That median is the midpoint of what buyers actually paid, not what sellers hoped to get, which is why it moves differently from the asking prices you see on listing sites. The middle half of those sales closed between $270,000 and $429,331. That spread matters more than the headline median: where a specific property sits inside it decides whether the citywide number helps you or misleads you. These are the closings Resideline tracks and may differ from complete county or municipal records. 89% of the San Marcos closings we track here are single-family houses, so these figures primarily reflect that segment, and the citywide $/sqft figure primarily reflects that segment as well. Across the 309 closings with usable living area, the middle half sold between $152 and $211 per square foot.

Figures last updated September 6, 2026 from closings Resideline tracked.

Median home price in San Marcos, TX (September 2026)

The median home price in San Marcos is $311,990, measured across the 310 closed sales Resideline tracked over the last six months. The middle half of those sales closed between $270,000 and $429,331.

Where San Marcos sale prices land

Medians hide the shape of a market. The distribution above covers the closed sales Resideline tracked in San Marcos over the last six months that carry a usable sale date, trimmed to the 5th through 95th percentile, with the middle half of sales closing between $270,000 and $429,331. Among the 127 Texas markets with a published band, San Marcos's middle-half spread ($270,000 to $429,331) ranks 77th from the narrowest. Where your target property sits inside that spread matters more than the citywide median.

How long a sale takes here

• •Listed to under contract: a median of 77 days, across 162 San Marcos closings Resideline tracked in the last six months
• •Contract to closing: a median of 22 days, across 154 San Marcos closings Resideline tracked in the last six months

The San Marcos angle

San Marcos combines a tight price band with a shallow comp pool, and that combination changes how you should work. The 310 closings Resideline tracked over the last six months carried a median closed sale price of $311,990, with the middle half between $270,000 and $429,331. That clustering means the median is a real anchor, and the useful question becomes whether the subject is ordinary for the city or not. Since the sample sits in one of the thinnest tenth of our coverage, keep filters minimal and reserve them for attributes that genuinely move price.

San Marcos market data by ZIP code

Citywide medians hide block-by-block variation. Resideline publishes free, regularly refreshed market snapshots for San Marcos ZIP codes: 78666.

From market read to offer price

A market read is the backdrop. The decision still comes down to one property and one number: what it is actually worth and what you should pay. Every Resideline report opens with this same market snapshot for the subject's exact ZIP code, then gives you the property's value, the sold comps behind it, and a market rent estimate. Pricing a specific deal? The free ARV calculator and rental property calculator run the numbers in about a minute.

And we show our work. Every estimate is frozen while the home is for sale, so it cannot be revised once the sale price is known. Grading it is a different matter in Texas: because sale prices are not public record here, a confirmed closing price reaches us for only a small share of Texas homes, and most Texas estimates stay frozen and ungraded. The accuracy scoreboard is therefore a national record rather than a Texas one. See the live accuracy dashboard for the receipts, or read how the Area Market Snapshot works.

Run any San Marcos address through Resideline and you will see the local market and the property's value together, in one report.

Cite this

Using these numbers? Please cite the source and the sample size:

Source: Resideline Market Watch
Market: San Marcos, TX
Geography: incorporated municipality, Census place 4865600
Data updated: September 2026
Analysis period: last six months
Tracked closings: 310
Median sold price: $311,990
Median sold $/sqft: $182 (309 qualifying)
Property mix: 89% houses
https://resideline.com/blog/san-marcos-tx-housing-market

Writing about this market? Paste this into your post:

<a href="https://resideline.com/blog/san-marcos-tx-housing-market">
  <img src="https://resideline.com/images/embed/san-marcos-tx.png" alt="San Marcos, TX home sale price distribution, last six months" width="1000" style="max-width:100%;height:auto">
</a>
<p>Source: <a href="https://resideline.com/blog/san-marcos-tx-housing-market">Resideline Market Watch</a></p>

The local market statistics in this report are calculated from closed sales tracked by Resideline. Transaction coverage may differ from complete county or municipal records.

Every local market figure on this page is computed from closed sales Resideline tracked in San Marcos over the last six months, and is refreshed when the data is.