City

ZIP codes in San Antonio, Texas

San Antonio is a city in Bexar County, Texas, with a population of 1,434,625, about 4.9% of the state's residents, at roughly 2,875 people per square mile. It has 83 ZIP codes, uses area codes 210, 726 and 830 and follows Central Time.

San Antonio at a glance · Data updated September 27, 2026

1,434,625
Residents: 83
ZIP codes: 554,581
Households: $65,056
Median household income: 34.9
Median age: 499
Square miles

View all 83 ZIP codes

Each shape is a residential ZIP code area (circles mark areas without an outline). Select one for details.

San Antonio compared with Texas

of Texas's population lives in San Antonio

2,875 / sq mi

population density, compared with 109 / sq mi across Texas

18% below

the Texas median household income ($79,721)

All 83 ZIP codes in San Antonio

Select a ZIP code to see its map and demographics.


Standard	42,005	$47,121	39.3
Standard	11,422	$47,478	38.8
Standard	5,872	$35,536	33.4
Standard	11,298	$60,255	36.2
Standard	2,339	$38,964	43.9
PO Box	—	—	—
Standard	51,705	$32,472	32.8
Standard	3,874	$26,595	36
Standard	42,456	$86,514	38.9
Standard	33,010	$55,028	35.4
Standard	29,976	$55,436	36.2
Standard	26,738	$62,801	38.4
Standard	40,589	$55,884	37.2
Standard	22,664	$44,902	37.8
Standard	3,644	$84,437	35.2
Standard	40,172	$59,110	37.8
Standard	33,562	$60,988	38
Standard	36,137	$57,285	36
Standard	16,509	$52,094	33.2
Standard	17,749	$41,710	33.8
Standard	39,779	$63,811	34
Standard	25,028	$66,362	36.9
Standard	55,705	$52,088	34.9
Standard	21,759	$59,891	29.4
Standard	12,576	$46,955	38.5
Standard	7,140	$33,398	33.1
Standard	46,594	$51,519	34.1
Standard	56,369	$52,976	36.1
Standard	33,135	$46,574	29.8
Standard	42,145	$73,529	40
Standard	8,993	$109,183	41.2
Standard	35,397	$85,273	38.4
Standard	49,442	$76,421	36
Standard	2,307	$62,863	27.5
Standard	36,019	$42,772	34.7
Standard	26,014	$57,769	34.1
Standard	31,554	$70,098	35.1
Standard	56,112	$63,351	33
PO Box	—	—	—
Standard	33,294	$50,644	29.7
Standard	235	—	21
Standard	35,801	$71,128	32.6
Standard	93,031	$90,029	32.1
PO Box	—	—	—
Standard	50,876	$91,013	37.8
Standard	13,825	$130,552	41.5
Standard	56,996	$80,565	28.8
Standard	54,933	$80,659	36
Standard	58,836	$78,958	33.2
Standard	17,156	$85,518	31.2
Standard	66,589	$106,373	33
Standard	72,791	$115,526	33.1
Standard	17,775	$157,428	40.6
Standard	13,643	$74,977	29.8
Standard	12,173	$81,301	34
Standard	51,073	$117,835	38
Standard	29,842	$114,156	37.1
Standard	37,037	$154,590	38.9
Standard	26,971	$147,727	36.4
Standard	4,995	$80,156	51
Standard	14,705	$54,409	41.6
PO Box	—	—	—
Standard	7,534	$146,792	49.8
PO Box	—	—	—
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How San Antonio ranks

Population: 1,434,625 — 2nd of 53 cities in Texas (among the largest cities we cover).
Median household income: $65,056 — 34th of 53 cities in Texas.
Median age: 34.9 — 23rd of 53 cities in Texas.
Share of adults with a bachelor's degree: 29% — 34th of 53 cities in Texas.
Population density: 2,875/sq mi — 18th of 53 cities in Texas.

Inside San Antonio's ZIP codes

Of the 83 ZIP codes tied to San Antonio, 59 (71%) are standard delivery areas that cover real neighborhoods; the rest are 22 PO Box and 2 unique-organization codes that serve mailboxes or single large recipients rather than residents.

Residents are spread across 59 populated ZIP codes. The largest, 78245, holds 93,031 people (5% of the city's ZIP-level population), and the three largest together hold 13%. Population is spread thinly and evenly across many codes.

Income varies by ZIP code: 78255 has the highest median household income at $157,428, while 78208 has the lowest at $26,595, a gap of 5.9×.

The oldest ZIP-code population is in 78263 (median age 51); the youngest is in 78235 (median age 27.5).

78207 is the most densely settled ZIP code at about 7,082 people per square mile, compared with 131 in 78263.

Compared with similar Texas cities

City	Population	Median income	Median age	ZIP codes
Houston →	2,304,580	$64,813	34.4	178
San Antonio	1,434,625	$65,056	34.9	83
Dallas →	1,304,379	$70,518	33.4	105
Austin →	961,855	$93,658	34.7	73
Fort Worth →	918,915	$79,507	33.6	56
El Paso →	678,815	$59,745	34.5	136
Arlington →	394,266	$75,171	33.7	19

All Texas cities →

Frequently asked questions about ZIP codes in San Antonio

How many ZIP codes does San Antonio have?+

San Antonio has 83 ZIP codes: 59 standard, 22 PO Box and 2 unique-organization. Only standard ZIP codes cover residential areas; 59 of them have residents according to the Census.

Which ZIP code in San Antonio has the most people?+

78245 is the most populated, with 93,031 residents and a median household income of $90,029.

What is the median household income in San Antonio?+

$65,056, which is 18% below the Texas median. By ZIP code it ranges from $26,595 in 78208 to $157,428 in 78255.

How big is San Antonio compared with other Texas cities?+

San Antonio is the 2nd largest of the 53 Texas cities we cover, with 1,434,625 residents.

What time zone and area codes does San Antonio use?+

San Antonio is in the Central Time zone and uses area codes 210, 726 and 830.