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US ZIP Code Profile

ZIP Code 78116
Gillett, Texas

ZIP code 78116 is in Gillett, located in Karnes County, Texas. Its 2020 Census population was 218. The estimated median adjusted gross income per tax return is $116,667, and about 33% of filers report $200,000 or more.

2020 Population
218
Census ZCTA
County
Karnes
FIPS 48255
Median income (est.)
$116,667
IRS SOI 2022
Land Area
122.202 mi²
+ 1.041 mi² water

01Location & Geography

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

Primary CityGillett, TX
CountyKarnes County (FIPS 48255)
StateTexas (FIPS 48)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.102255, -97.743965
Land / Water Area122.202 mi² land · 1.041 mi² water

02Income & Economics

Distribution of the 150 individual tax returns filed in 78116 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
33.3%
$25K–$50K
0.0%
$50K–$75K
13.3%
$75K–$100K
0.0%
$100K–$200K
20.0%
$200K+
33.3%
The $200,000+ bracket accounts for 91% of 78116's total adjusted gross income, from 33% of returns — a concentration that drives the gap between the median ($116,667) 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 78116's IRS income metrics, 2020–2022.

Median income (2021→2022)
$116,667
▲ 55.6%
Filers earning $200K+
33.3%
▲ 4.8 pt
Total filers
150
▲ 7.1%
GET /zipc/v2/zipcodes/78116/soi?year=… $71K 2020 $75K 2021 $117K 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 78116 ZCTA.

2000
240
 
2010
390
▲ +62.5%
2020
218
▼ -44.1%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number483505
City AliasesGillett

06Frequently Asked Questions

What county is ZIP code 78116 in?

ZIP code 78116 is in Karnes County, Texas (county FIPS code 48255).

What city is ZIP code 78116?

The primary USPS city for 78116 is Gillett, TX.

What is the population of ZIP code 78116?

The 2020 Census population of 78116 was 218 residents.

What is the median income in ZIP code 78116?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78116 is about $116,667, with around 33% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.