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ZIP code 78243: San Antonio, TX

78243 is a ZIP code in San Antonio, Texas, mainly in Bexar County, part of the San Antonio-New Braunfels, TX metro area. About 232 people live here.

Population
232
Median household income
—
Typical home value
—
Median rent
—gross, per month
Median age
21
Homeowners
—of occupied homes
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Shaded: ZIP code 78243's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 78243 details

CitySan Antonio
StateTexas
CountyBexar County
Metro areaSan Antonio-New Braunfels, TX
Time zoneCentral Time (UTC−6), observes daylight saving time
TypeStandard (delivery area)
Land area0.6 sq mi, plus 0 sq mi of water
Population density363 people per sq mi
Bachelor's degree or higher0% of adults 25+
Average commute11 minutes
Center coordinates29.37104, -98.59299

ZIP codes near 78243

ZIP codeCityDistancePopulation
78226San Antonio, TX1.6 mi6,554
78242San Antonio, TX1.7 mi36,168
78236Jbsa Lackland, TX2.1 mi7,635
78211San Antonio, TX2.4 mi30,857
78227San Antonio, TX3.1 mi44,035
78237San Antonio, TX3.8 mi37,379
78225San Antonio, TX4.2 mi13,104
78224San Antonio, TX5.1 mi22,232

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

About ZIP code 78243

What city is ZIP code 78243?

ZIP code 78243 is in San Antonio, TX, in Bexar County.

What county is ZIP code 78243 in?

78243 is mainly in Bexar County, Texas.

What is the population of ZIP code 78243?

About 232 people live in ZIP code 78243, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 78243 in?

78243 is in Central Time (UTC−6). It observes daylight saving time.

What other ZIP codes does San Antonio have?

San Antonio, TX also uses 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, 78231, 78232, 78233, 78235, 78237, 78238, 78239, 78240, 78241, 78242, 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 and 78299.