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US ZIP Code Profile

ZIP Code 78623
Fischer, Texas

ZIP code 78623 is in Fischer, located in Comal County, Texas, within the San Antonio-New Braunfels metro area. Its 2020 Census population was 1,670. The estimated median adjusted gross income per tax return is $77,344, and about 9% of filers report $200,000 or more.

2020 Population
1,670
Census ZCTA
County
Comal
FIPS 48091
Median income (est.)
$77,344
IRS SOI 2022
Land Area
20.524 mi²
+ 0.033 mi² water

01Location & Geography

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

Primary CityFischer, TX
CountyComal County (FIPS 48091)
StateTexas (FIPS 48)
Metro Area (MSA)San Antonio-New Braunfels, TX Metro Area (41700)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.97114, -98.22823
Land / Water Area20.524 mi² land · 0.033 mi² water

02Income & Economics

Distribution of the 1,170 individual tax returns filed in 78623 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
21.4%
$25K–$50K
16.2%
$50K–$75K
11.1%
$75K–$100K
13.7%
$100K–$200K
29.1%
$200K+
8.6%
The $200,000+ bracket accounts for 32% of 78623's total adjusted gross income, from 9% of returns — a concentration that drives the gap between the median ($77,344) 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 78623's IRS income metrics, 2020–2022.

Median income (2021→2022)
$77,344
▲ 4.5%
Filers earning $200K+
8.6%
▲ 0.3 pt
Total filers
1,170
▲ 7.3%
GET /zipc/v2/zipcodes/78623/soi?year=… $68K 2020 $74K 2021 $77K 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 78623 ZCTA.

2000
310
 
2010
813
▲ +162.3%
2020
1,670
▲ +105.4%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number483095
City AliasesFischer

06Frequently Asked Questions

What county is ZIP code 78623 in?

ZIP code 78623 is in Comal County, Texas (county FIPS code 48091).

What city is ZIP code 78623?

The primary USPS city for 78623 is Fischer, TX.

What metro area (MSA) is 78623 in?

78623 is part of the San Antonio-New Braunfels, TX Metro Area (MSA code 41700).

What is the population of ZIP code 78623?

The 2020 Census population of 78623 was 1,670 residents.

What is the median income in ZIP code 78623?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78623 is about $77,344, with around 9% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.