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US ZIP Code Profile

ZIP Code 79121
Amarillo, Texas

ZIP code 79121 is in Amarillo, located in Randall County, Texas, within the Amarillo metro area. Its 2020 Census population was 6,601. The estimated median adjusted gross income per tax return is $70,930, and about 11% of filers report $200,000 or more.

2020 Population
6,601
Census ZCTA
County
Randall
FIPS 48381
Median income (est.)
$70,930
IRS SOI 2022
Land Area
1.839 mi²
+ 0 mi² water

01Location & Geography

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

Primary CityAmarillo, TX
CountyRandall County (FIPS 48381)
StateTexas (FIPS 48)
Metro Area (MSA)Amarillo, TX Metro Area (11100)
Census Region / DivisionSouth Region · West South Central Division
Coordinates35.1747, -101.92972
Land / Water Area1.839 mi² land · 0 mi² water

02Income & Economics

Distribution of the 2,980 individual tax returns filed in 79121 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
21.5%
$25K–$50K
16.4%
$50K–$75K
14.4%
$75K–$100K
12.1%
$100K–$200K
24.5%
$200K+
11.1%
The $200,000+ bracket accounts for 46% of 79121's total adjusted gross income, from 11% of returns — a concentration that drives the gap between the median ($70,930) 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 79121's IRS income metrics, 2020–2022.

Median income (2021→2022)
$70,930
▲ 2.9%
Filers earning $200K+
11.1%
▲ 0.6 pt
Total filers
2,980
▲ 1.0%
GET /zipc/v2/zipcodes/79121/soi?year=… $63K 2020 $69K 2021 $71K 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 79121 ZCTA.

2000
6,332
 
2010
6,575
▲ +3.8%
2020
6,601
▲ +0.4%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 79121. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 79121

Amarillo and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 79121 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number480225
City AliasesAmarillo

07Frequently Asked Questions

What county is ZIP code 79121 in?

ZIP code 79121 is in Randall County, Texas (county FIPS code 48381).

What city is ZIP code 79121?

The primary USPS city for 79121 is Amarillo, TX.

What metro area (MSA) is 79121 in?

79121 is part of the Amarillo, TX Metro Area (MSA code 11100).

What is the population of ZIP code 79121?

The 2020 Census population of 79121 was 6,601 residents.

What is the median income in ZIP code 79121?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 79121 is about $70,930, with around 11% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.