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US ZIP Code Profile

ZIP Code 78108
Cibolo, Texas

ZIP code 78108 is in Cibolo, located in Guadalupe County, Texas, within the San Antonio-New Braunfels metro area. Its 2020 Census population was 44,079. The estimated median adjusted gross income per tax return is $64,776, and about 5% of filers report $200,000 or more.

2020 Population
44,079
Census ZCTA
County
Guadalupe
FIPS 48187
Median income (est.)
$64,776
IRS SOI 2022
Land Area
30.882 mi²
+ 0.059 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityCibolo, TX
CountyGuadalupe County (FIPS 48187)
StateTexas (FIPS 48)
Metro Area (MSA)San Antonio-New Braunfels, TX Metro Area (41700)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.570143, -98.2178
Land / Water Area30.882 mi² land · 0.059 mi² water

02Income & Economics

Distribution of the 21,320 individual tax returns filed in 78108 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
22.4%
$25K–$50K
18.9%
$50K–$75K
14.7%
$75K–$100K
12.2%
$100K–$200K
26.5%
$200K+
5.2%
The $200,000+ bracket accounts for 18% of 78108's total adjusted gross income, from 5% of returns — a concentration that drives the gap between the median ($64,776) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 78108's IRS income metrics, 2020–2022.

Median income (2021→2022)
$64,776
▲ 6.0%
Filers earning $200K+
5.2%
▲ 0.9 pt
Total filers
21,320
▲ 2.4%
GET /zipc/v2/zipcodes/78108/soi?year=… $58K 2020 $61K 2021 $65K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 78108 ZCTA.

2000
8,921
 
2010
27,770
▲ +211.3%
2020
44,079
▲ +58.7%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number481745
City AliasesCibolo, Schertz

06Frequently Asked Questions

What county is ZIP code 78108 in?

ZIP code 78108 is in Guadalupe County, Texas (county FIPS code 48187).

What city is ZIP code 78108?

The primary USPS city for 78108 is Cibolo, TX.

What metro area (MSA) is 78108 in?

78108 is part of the San Antonio-New Braunfels, TX Metro Area (MSA code 41700).

What is the population of ZIP code 78108?

The 2020 Census population of 78108 was 44,079 residents.

What is the median income in ZIP code 78108?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78108 is about $64,776, with around 5% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.