ZIP code 78203
Where is ZIP code 78203?
San Antonio, Texas
Bexar County · Standard ZIP code
ZIP code 78203 belongs to San Antonio, Texas in Bexar County. 78203 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 5,200 people live in the 78203 area, where the median household income is $35,536. The closest ZIP codes are 78202 (San Antonio, 0.9 mi north), 78210 (San Antonio, 1.2 mi south) and 78206 (San Antonio, 1.6 mi north).
| ZIP code | 78203 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | San Antonio |
| State | Texas (TX) |
| County | Bexar County |
| Time zone | Central Time · now |
| Area codes | 210, 726 |
| Coordinates | 29.4148, -98.4601 map |
| 3-digit prefix | 782 |
Population and income in 78203
| Population | 5,200 · lower than 52% of Texas ZIP codes |
|---|---|
| People per square mile | 3,804 · higher than 89% of Texas ZIP codes |
| Median age | 33.4 years · lower than 78% of Texas ZIP codes |
| Men / women | 46% / 54% |
| Median household income | $35,536 · lower than 97% of Texas ZIP codes |
| Income per person | $18,976 |
| Below the poverty line | 39% |
| Bachelor’s degree or higher | 11% of adults 25+ |
| Median home value | $158,000 · lower than 70% of Texas ZIP codes |
| Median rent | $1,051 a month |
| Housing units | 2,392 |
| Households | 1,802 (2.81 people on average) |
| Owners / renters | 45% / 55% |
| Land area | 1.37 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78203. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 78203
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78202 | San Antonio, TX | 0.9 mi N | Standard |
| 78210 | San Antonio, TX | 1.2 mi S | Standard |
| 78206 | San Antonio, TX | 1.6 mi N | Standard |
| 78241 | San Antonio, TX | 1.6 mi N | Standard |
| 78243 | San Antonio, TX | 1.6 mi N | Standard |
| 78246 | San Antonio, TX | 1.6 mi N | PO Box only |
| 78265 | San Antonio, TX | 1.6 mi N | PO Box only |
| 78268 | San Antonio, TX | 1.6 mi N | PO Box only |
| 78269 | San Antonio, TX | 1.6 mi N | PO Box only |
| 78270 | San Antonio, TX | 1.6 mi N | PO Box only |
| 78278 | San Antonio, TX | 1.6 mi N | PO Box only |
| 78279 | San Antonio, TX | 1.6 mi N | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78203 or measure the distance to another ZIP code.
How to address mail to 78203
123 MAIN ST
SAN ANTONIO TX 78203
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (78203-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in San Antonio, TX
- 78201
- 78202
- 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
- 78231
- 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 78203?
- 78203 is a San Antonio, Texas ZIP code.
- What county is 78203 in?
- ZIP code 78203 is in Bexar County, Texas.
- What time zone is ZIP code 78203 in?
- 78203 is in the Central Time zone (America/Chicago).
- What area code is 78203?
- Phone numbers in ZIP code 78203 use area codes 210 and 726.
- What is the population of ZIP code 78203?
- About 5,200 people live in ZIP code 78203, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 78203?
- The median household income in 78203 is $35,536 a year, lower than 97% of Texas ZIP codes.
- What ZIP codes are near 78203?
- The nearest ZIP codes to 78203 are 78202 (San Antonio, 0.9 miles), 78210 (San Antonio, 1.2 miles), 78206 (San Antonio, 1.6 miles) and 78241 (San Antonio, 1.6 miles).