Zip lookup · TX

78257
San Antonio, Texas.

San Antonio, Bexar County, TX · San Antonio-New Braunfels, TX metro · population 10,992

What it costs per month · 78257 $4,861/mo

to buy the typical home at today's mortgage rate — +$2,720 (+127%) since Jan 2020.

What the home itself did
1 year
Up $34,792 +4%
$891,393$926,186 since Sep 2025
5 years
Up $205,609 +29%
$720,577$926,186 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$1,000 $2,000 $3,000 $4,000 $5,000 2002 2006 2010 2014 2018 2022 2026 78257 $4,861 United States $1,922
$1,000 $2,000 $3,000 $4,000 $5,000 2002 2010 2018 2026
  • 78257$4,861
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 14 years.

Typical home values in zip 78257 rose 3.9% over the past year — faster than the nation's +1.2%.

Asking rents in zip 78257 rose 1.3% over the past year — slower than the nation's +2.7%.

Owning the typical home in zip 78257 runs $5,823/mo more than renting one — the widest that gap has been in this data.

That is $7,188 a month against $1,365 rent: a $4,861 mortgage payment, plus $1,335 property tax and $992 insurance & upkeep.

Owning vs renting — zip 78257

The owning line is the typical home's monthly payment at that month's rate, plus property tax and insurance & upkeep; the renting line is the typical asking rent; the grey line is the mortgage payment on its own. Same homes, same months, both ways of paying for a roof.

$2,500 $5,000 $7,500 2018 2019 2020 2021 2022 2023 2024 2025 2026 Owning all in $7,188 Renting $1,365 Mortgage only $4,861
$2,500 $5,000 $7,500 2018 2022 2026
  • Owning all in$7,188
  • Renting$1,365
  • Mortgage only$4,861

Property tax · $1,335/mo 1.73% of value a year — the ACS 2020-2024 median bill over the median home value for Bexar County, TX

Insurance & upkeep · $992/mo insurance, maintenance and repairs together, from the BLS Consumer Expenditure Survey — the national figure for mortgaged homeowners, scaled to this market's home value. BLS publishes the three bundled and they cannot be split.

Both are priced off the same month's home value, so they rise with the market. Neither is a quote — a specific home's bill depends on its assessment, its age and its insurer.

Zillow also publishes an index for the city itself: San Antonio, TX — measured over the city limits, which is a different area from this zip.

Asking rent $1,365 as of Sep 2026
+1.3%year on year
Typical home value $926,186 as of Sep 2026
+3.9%year on year

Asking rent — 78257

Against the San Antonio-New Braunfels, TX metro and the national benchmark.

$1,200 $1,400 $1,600 $1,800 2018 2019 2020 2021 2022 2023 2024 2025 2026 78257 $1,365 San Antonio $1,415 United States $1,932
$1,200 $1,400 $1,600 $1,800 2018 2022 2026
  • 78257$1,365
  • San Antonio$1,415
  • United States$1,932

Typical home value — 78257

Mid-tier homes, smoothed and seasonally adjusted.

$200,000 $400,000 $600,000 $800,000 2018 2020 2022 2024 2026 78257 $926,186 San Antonio $273,806 United States $366,157
$200,000 $400,000 $600,000 $800,000 2018 2022 2026
  • 78257$926,186
  • San Antonio$273,806
  • United States$366,157

Within 20 miles

Showing 30 of 53 zips in range — sorting picks from all 53.

Miles sorted ascending, activate to sort descending Zip activate to sort by Zip City activate to sort by City Population activate to sort by Population Rent activate to sort by Rent Home value activate to sort by Home value
3.3 78256 San Antonio 13,453 $1,571 $588,407
4.8 78231 San Antonio 9,744 $1,130 $447,482
4.8 78248 San Antonio 14,488 $1,237 $498,403
5.1 78258 San Antonio 52,448 $1,478 $500,221
5.2 78255 San Antonio 17,379 $1,932 $541,538
5.7 78249 San Antonio 63,439 $1,393 $298,882
6.3 78260 San Antonio 38,023 $1,539 $513,569
6.9 78230 San Antonio 41,387 $1,115 $353,731
7.2 78232 San Antonio 36,636 $1,291 $378,257
8.1 78015 Boerne 24,867 $1,771 $596,474
8.5 78240 San Antonio 57,921 $1,256 $261,726
9.1 78216 San Antonio 41,180 $1,233 $279,619
9.3 78213 San Antonio 40,526 $1,074 $196,506
9.5 78259 San Antonio 29,826 $1,464 $399,823
9.5 78229 San Antonio 35,664 $1,049 $182,318
10.8 78023 Helotes 28,462 $2,019 $433,033
10.9 78247 San Antonio 51,933 $1,547 $273,809
11.1 78250 San Antonio 57,323 $1,491 $239,378
11.1 78261 San Antonio 26,657 $1,768 $434,207
11.6 78163 Bulverde 19,141 $2,330 $468,665
11.8 78217 San Antonio 34,055 $1,147 $220,205
12.0 78254 San Antonio 77,893 $1,801 $304,573
12.2 78238 San Antonio 26,032 $1,308 $217,490
12.4 78201 San Antonio 41,981 $1,042 $165,016
12.6 78228 San Antonio 56,165 $1,152 $163,693
12.9 78209 San Antonio 43,400 $1,539 $466,991
13.4 78212 San Antonio 27,437 $1,437 $276,814
13.9 78251 San Antonio 59,435 $1,233 $258,929
14.2 78233 San Antonio 48,911 $1,317 $224,753
14.9 78218 San Antonio 39,428 $1,453 $192,390

Coordinates and population from SimpleMaps US Zips (Basic). Rent and home values from Zillow Research.