Homes Under $400K in San Marcos, TX

263 active homes under $400k in San Marcos, TX · The median list price in San Marcos is $335,000.

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$334,900

121 Charming Redbud LN, San Marcos TX 78666

MLS #245507306 · Realty Texas LLC · Ysolette Dailey

2 bd·2 ba·1,372 sqft

Price CutNew Construction

$399,990

225 Tessaria DR, San Marcos TX 78666

MLS #245486803 · Escape Realty · Jaclyn Calhoun

4 bd·3 ba·2,188 sqft

Quick Move-In

Price CutNew Construction

$399,990

245 Tessaria DR, San Marcos TX 78666

MLS #245491330 · Escape Realty · Jaclyn Calhoun

4 bd·3 ba·2,240 sqft

Quick Move-In

Price CutNew Construction

$379,990

253 Tessaria DR, San Marcos TX 78666

MLS #245491333 · Escape Realty · Jaclyn Calhoun

4 bd·3 ba·1,930 sqft

Quick Move-In

Motivated SellerNew Construction

$306,999

151 Little Prairie VLY, San Marcos TX 78666

MLS #245480175 · Keller Williams City-View · Christopher Marti

4 bd·3 ba·2,157 sqft

Quick Move-In

Motivated SellerNew Construction

$330,999

155 Little Prairie VLY, San Marcos TX 78666

MLS #245482872 · Keller Williams City-View · Christopher Marti

5 bd·4 ba·2,958 sqft

Quick Move-In

Price CutNew Construction

$241,999

1705 Iron Truss RD, San Marcos TX 78666

MLS #245482881 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·1,922 sqft

Quick Move-In

Motivated Seller

$294,000

124 Edward R Gaytan ST, San Marcos TX 78666

MLS #245472237 · Central Metro Realty · McKenna Welsh

3 bd·2 ba·1,462 sqft

Motivated Seller

$215,000

1100 Mira Loma LN, San Marcos TX 78666

MLS #245446076 · Team Price Real Estate · Melanie Price

3 bd·2 ba·1,230 sqft

Motivated SellerNew Construction

$272,999

141 Little Prairie VLY, San Marcos TX 78666

MLS #245430886 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·2,014 sqft

Quick Move-In

$374,990

221 Tessaria DR, San Marcos TX 78666

MLS #245430936 · Escape Realty · Jaclyn Calhoun

4 bd·3 ba·1,917 sqft

Motivated SellerNew Construction

$351,999

147 Little Prairie VLY, San Marcos TX 78666

MLS #245433273 · Keller Williams City-View · Christopher Marti

5 bd·4 ba·2,958 sqft

Quick Move-In

$300,000

222 New Hampton WAY, San Marcos TX 78666

MLS #245409892 · eXp Realty, LLC · Jovanny Garcia

3 bd·2 ba·1,499 sqft

Price Cut

$194,000

1221 W Hopkins ST #2, San Marcos TX 78666

MLS #245370684 · Keeping It Realty · Andrea Barton

2 bd·1.5 ba·928 sqft

Motivated Seller

$259,251

1348 Morris LOOP, San Marcos TX 78666

MLS #245332099 · ERA Experts · Kent Zarbock

3 bd·2 ba·1,662 sqft

$300,000

120 Scarborough WAY, San Marcos TX 78666

MLS #245335474 · eXp Realty, LLC · Jovanny Garcia

3 bd·2 ba·1,499 sqft

New Construction

$274,770

256 Elk Ave, San Marcos TX 78666

MLS #245344638 · ERA Experts · Matt Menard

3 bd·2 ba·1,506 sqft

Quick Move-In

New Construction

$328,529

257 Elk Ave, San Marcos TX 78666

MLS #245344640 · ERA Experts · Matt Menard

4 bd·3 ba·2,091 sqft

Quick Move-In

Price Cut

$199,000

1202 Thorpe LN #315, San Marcos TX 78666

MLS #245347894 · Berdoll Realty · Mark Berdoll

2 bd·2 ba·1,230 sqft

Motivated Seller

$250,812

1337 Morris LOOP, San Marcos TX 78666

MLS #245330491 · ERA Experts · Kent Zarbock

3 bd·2 ba·1,536 sqft

Motivated Seller

$314,900

125 Barton RD, San Marcos TX 78666

MLS #245292680 · 3Z Realty · Robby Roden

3 bd·2 ba·1,341 sqft

$325,000

160 RAYMONDVILLE PATH, San Marcos TX 78666

MLS #245306975 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·1,732 sqft

New Construction

$312,924

120 Blackfoot Daisy PATH, San Marcos TX 78666

MLS #245253591 · ERA Experts · Matt Menard

3 bd·2 ba·1,454 sqft

Quick Move-In

Price Cut

$249,900

901 Barbara DR, San Marcos TX 78666

MLS #245264944 · Compass RE Texas, LLC · Celena Martinez

2 bd·2 ba·1,398 sqft

About Homes Under $400K in San Marcos, TX

Setting a price ceiling is one of the most useful ways to shop, and there are 263 homes for sale under $400K in San Marcos on the market right now, drawn from live MLS data — so you're seeing what's actually available in your range, not a stale list. How far a $400K budget goes depends on the San Marcos market, and the quickest gauge is the median list price shown above: when your ceiling is below the local median you're shopping the lower-priced end of the local market, and when it's near or above the median you're looking at a large share of what's available. Within a $400K budget you'll typically find a mix of property types — houses, condos, and townhomes, and in some areas newer construction — across different sizes, ages, and neighborhoods, so the trade-offs between them are where the real choice lives. You can filter the homes and houses for sale under $400K in San Marcos by beds, baths, and features to narrow the list, and open any listing for its full details and price history. Because HomeLocating is an independent home-search platform — not a national portal — you get a neutral, MLS-sourced view of what $400K actually buys in San Marcos today.

Buying a Home Under $400K in San Marcos

Shopping with a $400K ceiling in San Marcos works best when the number is real, so a few things are worth doing before you tour. Start with a lender: getting pre-approved tells you what you can actually borrow and what your monthly payment looks like at $400K, which is often different from a round budget in your head. Remember that the list price isn't the whole cost — property taxes, any HOA or MUD dues, and insurance all factor into what a home under $400K really costs each month, so it's worth looking at the full number. Within a fixed budget, the choice usually comes down to trade-offs: size, location and commute, the age and condition of the home, and new construction versus resale — deciding which of those matter most to you makes comparing homes far easier. And well-priced homes in a given range can move quickly, so knowing your criteria in advance helps you act when the right one appears. None of this is financial advice, and HomeLocating is not a lender — but it's what keeps a budget from being a guess. Through HomeLocating, you can get help finding and buying a home under $400K in San Marcos directly through the site. When you're ready, browse the listings above and reach out about any that interest you.

Frequently Asked Questions

How many homes are for sale under $400K in San Marcos?

It changes as new listings come on the market and others go under contract. The homes under $400K shown here for San Marcos are drawn from live MLS data, so the count reflects what's actually available right now — the current total is shown with the results above.

What kind of homes can I get under $400K in San Marcos?

It depends on how $400K compares to the local market — the median list price for San Marcos is shown above. Within that budget you'll generally find a mix of houses, condos, and townhomes, and in some areas newer construction, across a range of sizes, ages, and neighborhoods. Filtering by property type and features narrows it to what fits.

How does a $400K budget compare to the San Marcos market?

The simplest gauge is the median list price shown above. If $400K is below the San Marcos median, you're shopping the lower-priced end of the market; if it's near or above the median, your budget covers a large share of what's listed. The live count shows how many homes currently fall under $400K.

How do I know what I can actually afford?

List price is only part of it — your real budget depends on your financing plus property taxes, insurance, and any HOA or MUD dues. Getting pre-approved with a lender tells you what you can borrow and what the monthly payment would be at $400K, so the number is based on your situation rather than a guess.

Are these listings current?

Yes — the homes under $400K shown here are drawn from live MLS data, so you're seeing current listings rather than a stale or padded list. As an independent platform, the goal is an accurate, neutral view of the San Marcos market.

Can HomeLocating help me buy a home under $400K in San Marcos?

Yes. Through HomeLocating, you can get help comparing homes in your budget, understanding the full monthly cost, and handling the offer directly through the site — reach out about any of the listings above.