Five San Antonio Area ZIP Codes Are Moving at Very Different Speeds

I'm Scott C. Peck, Broker Associate and Business Development Director with JBGoodwin REALTORS®. These numbers cover the three months ending August 31, 2026. The Real Estate Data Aggregator counted 703 homes sold across these five ZIP codes in that period. That is a real number, but it hides a lot.

Some ZIP codes here are moving in 41 days. Others are sitting for 98. That gap is the whole story, and it is why local knowledge matters more than any single average.

Nationally, Realtor.com reported that active listings topped 1.16 million homes for sale in September 2026. Realtor.com also reported that mortgage rates climbed above 7% for the first time since January 2025. That backdrop matters, but what happens on your street matters more.

How fast are homes actually selling?

The Real Estate Data Aggregator shows median days on market ranging from 41 days in ZIP 78247 to 98 days in ZIP 78121. That is not a small difference. A home sitting 57 extra days needs a different strategy.

ZIP 78247 is the quickest. Median days on market there came in at 41 days, 7 days shorter than the same period a year ago. Nearly 1 in 4 homes there went under contract within two weeks of listing.

ZIP 78121 is the other end. Median days on market there hit 98 days, which is 19 days longer than a year ago. Homes are taking more than three months to find a buyer on average, and that changes the conversation when you set a price.

How much supply is sitting out there?

ZIP 78266 has just 2.9 months of supply, according to the Real Estate Data Aggregator. That is the tightest in the group, and it dropped 1.6 months from a year ago. Sales there rose 51.8% year over year, and homes are selling in about 50 days.

ZIP 78155 sits at 5.8 months of supply. The Real Estate Data Aggregator counted 573 homes for sale there against 303 sold in the period. Pending sales fell 6.9% from a year ago, and homes are sitting about 86 days. Sellers there are working harder for every offer.

What are homes actually selling for?

Prices are softer in most of these five ZIP codes. The Real Estate Data Aggregator shows median sale prices down year over year in four of the five ZIP codes. ZIP 78121 dropped 14.1% and ZIP 78266 dropped 11.2%. ZIP 78155 is the one exception, up 1.7%.

Even so, sellers are still getting close to their asking price across the board. Sale to list ratios run between 97.5% and 98.2% in all five ZIP codes. Pricing right still works. Pricing too high is where homes stall.

Realtor.com reported that price cuts hit 20.8% of listings nationally in September 2026, the highest share since October 2022. That is the national picture. Across these five ZIP codes, the local numbers tell a more specific story depending on your ZIP.

Which ZIP codes are seeing quick contracts?

ZIP 78247 and ZIP 78240 both had about 1 in 4 homes go under contract within two weeks. That is a real pocket of speed inside a market that, on average, looks slower. If your home is priced well in those ZIP codes, buyers with saved searches tend to respond quickly.

How are mortgage rates changing the picture?

Redfin reported the weekly average mortgage rate hit 7.4% on October 8, 2026, a three year high. Redfin said that pushed the typical homebuyer's monthly payment to $2,777. Fannie Mae's forecast, reported by CNBC on October 14, 2026, puts the 30 year fixed rate at 7.4% for the fourth quarter of 2026.

Higher rates slow buyers down. That is part of why pending sales across all five ZIP codes fell 7.6% from a year ago, according to the Real Estate Data Aggregator. It also makes pricing precision more important. Buyers are running the math carefully right now.

One street can read very differently from the whole ZIP code. The averages above are a starting point, not the final word on your home. If you want to know where your address actually lands, I am happy to take a look. It costs nothing.

Frequently Asked Questions

Which of these ZIP codes is selling the fastest?

ZIP 78247 has the shortest median days on market at 41 days, which is 7 days shorter than a year ago. ZIP 78240 is also seeing about 1 in 4 homes go under contract within two weeks.

Which of these ZIP codes is the slowest?

ZIP 78121 has the longest median days on market at 98 days, which is 19 days longer than a year ago. Sellers there benefit most from a sharp pricing strategy from the start.

Are sellers in these ZIP codes still getting close to asking price?

Yes. Sale to list ratios run between 97.5% and 98.2% across all five ZIP codes, according to the Real Estate Data Aggregator. Homes priced correctly are still landing near their list price.

How do higher mortgage rates affect sellers?

Higher rates make buyers more cautious about monthly payments. Pending sales across these five ZIP codes fell 7.6% from a year ago, so accurate pricing and clear communication about your home's value carry more weight.

All figures come from MLS records and are believed to be accurate but are not guaranteed.

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