ZIP code 78231
Where is ZIP code 78231?
San Antonio, Texas
Bexar County · Standard ZIP code
ZIP code 78231 belongs to San Antonio, Texas in Bexar County. 78231 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area codes 210 and 726. About 9,744 people live in the 78231 area, where the median household income is $109,183. The closest ZIP codes are 78248 (San Antonio, 1.8 mi northeast), 78230 (San Antonio, 2.2 mi south) and 78213 (San Antonio, 3.4 mi south).
| ZIP code | 78231 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | San Antonio |
| Also accepted | Shavano Park |
| State | Texas (TX) |
| County | Bexar County |
| Time zone | Central Time · now |
| Area codes | 210, 726 |
| Coordinates | 29.5714, -98.5414 map |
| 3-digit prefix | 782 |
Population and income in 78231
| Population | 9,744 · higher than 57% of Texas ZIP codes |
|---|---|
| People per square mile | 2,383 · higher than 79% of Texas ZIP codes |
| Median age | 41.2 years · higher than 65% of Texas ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $109,183 · higher than 88% of Texas ZIP codes |
| Income per person | $57,828 |
| Below the poverty line | 5.8% |
| Bachelor’s degree or higher | 66% of adults 25+ |
| Median home value | $401,800 · higher than 88% of Texas ZIP codes |
| Median rent | $1,393 a month |
| Housing units | 4,083 |
| Households | 3,978 (2.44 people on average) |
| Owners / renters | 66% / 34% |
| Land area | 4.09 sq mi (plus 0.01 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78231. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 78231
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78248 | San Antonio, TX | 1.8 mi NE | Standard |
| 78230 | San Antonio, TX | 2.2 mi S | Standard |
| 78213 | San Antonio, TX | 3.4 mi S | Standard |
| 78216 | San Antonio, TX | 3.7 mi SE | Standard |
| 78232 | San Antonio, TX | 4 mi E | Standard |
| 78249 | San Antonio, TX | 4.3 mi W | Standard |
| 78229 | San Antonio, TX | 4.9 mi S | Standard |
| 78240 | San Antonio, TX | 5.1 mi SW | Standard |
| 78256 | San Antonio, TX | 5.9 mi NW | Standard |
| 78258 | San Antonio, TX | 6.4 mi NE | Standard |
| 78257 | San Antonio, TX | 6.9 mi NW | Standard |
| 78201 | San Antonio, TX | 6.9 mi S | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78231 or measure the distance to another ZIP code.
How to address mail to 78231
123 MAIN ST
SAN ANTONIO TX 78231
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts SHAVANO PARK as the city name for 78231. Adding the 4-digit ZIP+4 code (78231-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in San Antonio, TX
- 78201
- 78202
- 78203
- 78204
- 78205
- 78206
- 78207
- 78208
- 78209
- 78210
- 78211
- 78212
- 78213
- 78214
- 78215
- 78216
- 78217
- 78218
- 78219
- 78220
- 78221
- 78222
- 78223
- 78224
- 78225
- 78226
- 78227
- 78228
- 78229
- 78230
- 78232
- 78233
- 78235
- 78237
- 78238
- 78239
- 78240
- 78241
- 78242
- 78243
- 78244
- 78245
- 78246
- 78247
- 78248
- 78249
- 78250
- 78251
- 78252
- 78253
- 78254
- 78255
- 78256
- 78257
- 78258
- 78259
- 78260
- 78261
- 78263
- 78264
- 78265
- 78266
- 78268
- 78269
- 78270
- 78278
- 78279
- 78280
- 78283
- 78284
- 78285
- 78288
- 78289
- 78291
- 78292
- 78293
- 78294
- 78295
- 78296
- 78297
- 78298
- 78299
All San Antonio ZIP codes with population and income →
Questions
- What city is ZIP code 78231?
- 78231 is a San Antonio, Texas ZIP code. Shavano Park is also accepted as the city name.
- What county is 78231 in?
- ZIP code 78231 is in Bexar County, Texas.
- What time zone is ZIP code 78231 in?
- 78231 is in the Central Time zone (America/Chicago).
- What area code is 78231?
- Phone numbers in ZIP code 78231 use area codes 210 and 726.
- What is the population of ZIP code 78231?
- About 9,744 people live in ZIP code 78231, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 78231?
- The median household income in 78231 is $109,183 a year, higher than 88% of Texas ZIP codes.
- What ZIP codes are near 78231?
- The nearest ZIP codes to 78231 are 78248 (San Antonio, 1.8 miles), 78230 (San Antonio, 2.2 miles), 78213 (San Antonio, 3.4 miles) and 78216 (San Antonio, 3.7 miles).