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 August 2026.

The snapshot

• •Closings tracked, last 6 months: 314
• •Median sold price, last 6 months: $314,995
• •Median sold $/sqft, last 6 months: $181
• •Middle half of sales closed between: $277,993 and $429,000

What the numbers say

Resideline tracked 314 closed sales in San Marcos over the last six months, with a median closing price of $314,995. 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 $277,993 and $429,000. 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 314 closings with usable living area, the middle half sold between $154 and $212 per square foot.

Figures last updated August 22, 2026 from closings Resideline tracked.

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

The median home price in San Marcos is $314,995, measured across the 314 closed sales Resideline tracked over the last six months. The middle half of those sales closed between $277,993 and $429,000.

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, trimmed to the 5th through 95th percentile, with the middle half of sales closing between $277,993 and $429,000. 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 87 days, across 173 San Marcos closings Resideline tracked in the last six months
• •Contract to closing: a median of 23 days, across 164 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 314 closings Resideline tracked over the last six months carried a median closed sale price of $314,995, with the middle half between $277,993 and $429,000, a narrower spread than most markets we track. 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 and graded against the real closing price after it sells. As of August 2026, the public scoreboard showed 3.26% median error across 12,516+ graded closings. 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
Data updated: August 2026
Analysis period: last six months
Tracked closings: 314
Median sold price: $314,995
Median sold $/sqft: $181 (314 qualifying)
Property mix: 89% houses
https://resideline.com/blog/san-marcos-tx-housing-market

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.