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US ZIP Code Profile

ZIP Code 78959
Waelder, Texas

ZIP code 78959 is in Waelder, located in Gonzales County, Texas. Its 2020 Census population was 1,723. The estimated median adjusted gross income per tax return is $36,694, and about 3% of filers report $200,000 or more.

2020 Population
1,723
Census ZCTA
County
Gonzales
FIPS 48177
Median income (est.)
$36,694
IRS SOI 2022
Land Area
156.261 mi²
+ 0.212 mi² water

01Location & Geography

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

Primary CityWaelder, TX
CountyGonzales County (FIPS 48177)
StateTexas (FIPS 48)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.700745, -97.30133
Land / Water Area156.261 mi² land · 0.212 mi² water

02Income & Economics

Distribution of the 930 individual tax returns filed in 78959 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
34.4%
$25K–$50K
33.3%
$50K–$75K
14.0%
$75K–$100K
5.4%
$100K–$200K
9.7%
$200K+
3.2%
The $200,000+ bracket accounts for 24% of 78959's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($36,694) 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 78959's IRS income metrics, 2020–2022.

Median income (2021→2022)
$36,694
▲ 6.1%
Filers earning $200K+
3.2%
▲ 1.0 pt
Total filers
930
▲ 4.5%
GET /zipc/v2/zipcodes/78959/soi?year=… $32K 2020 $35K 2021 $37K 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 78959 ZCTA.

2000
1,530
 
2010
1,837
▲ +20.1%
2020
1,723
▼ -6.2%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number489405
City AliasesThompsonville, Waelder

06Frequently Asked Questions

What county is ZIP code 78959 in?

ZIP code 78959 is in Gonzales County, Texas (county FIPS code 48177).

What city is ZIP code 78959?

The primary USPS city for 78959 is Waelder, TX.

What is the population of ZIP code 78959?

The 2020 Census population of 78959 was 1,723 residents.

What is the median income in ZIP code 78959?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78959 is about $36,694, with around 3% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.