Get API Key →
US ZIP Code Profile

ZIP Code 79556
Sweetwater, Texas

ZIP code 79556 is in Sweetwater, located in Nolan County, Texas, within the Sweetwater metro area. Its 2020 Census population was 12,644. The estimated median adjusted gross income per tax return is $41,508, and about 4% of filers report $200,000 or more.

2020 Population
12,644
Census ZCTA
County
Nolan
FIPS 48353
Median income (est.)
$41,508
IRS SOI 2022
Land Area
304.245 mi²
+ 1.856 mi² water

01Location & Geography

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

Primary CitySweetwater, TX
CountyNolan County (FIPS 48353)
StateTexas (FIPS 48)
Metro Area (MSA)Sweetwater, TX Micro Area (45020)
Census Region / DivisionSouth Region · West South Central Division
Coordinates32.458786, -100.35794
Land / Water Area304.245 mi² land · 1.856 mi² water

02Income & Economics

Distribution of the 5,010 individual tax returns filed in 79556 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
32.7%
$25K–$50K
26.2%
$50K–$75K
14.8%
$75K–$100K
9.6%
$100K–$200K
13.2%
$200K+
3.6%
The $200,000+ bracket accounts for 27% of 79556's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($41,508) 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 79556's IRS income metrics, 2020–2022.

Median income (2021→2022)
$41,508
▲ 11.0%
Filers earning $200K+
3.6%
▲ 0.6 pt
Total filers
5,010
▼ 1.4%
GET /zipc/v2/zipcodes/79556/soi?year=… $36K 2020 $37K 2021 $42K 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 79556 ZCTA.

2000
13,557
 
2010
12,995
▼ -4.1%
2020
12,644
▼ -2.7%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number488780
City AliasesClaytonville, Palava, Sweetwater

06Frequently Asked Questions

What county is ZIP code 79556 in?

ZIP code 79556 is in Nolan County, Texas (county FIPS code 48353).

What city is ZIP code 79556?

The primary USPS city for 79556 is Sweetwater, TX.

What metro area (MSA) is 79556 in?

79556 is part of the Sweetwater, TX Micro Area (MSA code 45020).

What is the population of ZIP code 79556?

The 2020 Census population of 79556 was 12,644 residents.

What is the median income in ZIP code 79556?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 79556 is about $41,508, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.