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US ZIP Code Profile

ZIP Code 79423
Lubbock, Texas

ZIP code 79423 is in Lubbock, located in Lubbock County, Texas, within the Lubbock metro area. Its 2020 Census population was 42,311. The estimated median adjusted gross income per tax return is $51,355, and about 7% of filers report $200,000 or more.

2020 Population
42,311
Census ZCTA
County
Lubbock
FIPS 48303
Median income (est.)
$51,355
IRS SOI 2022
Land Area
60.498 mi²
+ 0.322 mi² water

01Location & Geography

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

Primary CityLubbock, TX
CountyLubbock County (FIPS 48303)
StateTexas (FIPS 48)
Metro Area (MSA)Lubbock, TX Metro Area (31180)
Census Region / DivisionSouth Region · West South Central Division
Coordinates33.439983, -101.85548
Land / Water Area60.498 mi² land · 0.322 mi² water

02Income & Economics

Distribution of the 21,340 individual tax returns filed in 79423 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
25.0%
$25K–$50K
24.1%
$50K–$75K
15.6%
$75K–$100K
10.3%
$100K–$200K
17.8%
$200K+
7.2%
The $200,000+ bracket accounts for 43% of 79423's total adjusted gross income, from 7% of returns — a concentration that drives the gap between the median ($51,355) 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 79423's IRS income metrics, 2020–2022.

Median income (2021→2022)
$51,355
▲ 7.5%
Filers earning $200K+
7.2%
▲ 0.9 pt
Total filers
21,340
▲ 2.0%
GET /zipc/v2/zipcodes/79423/soi?year=… $46K 2020 $48K 2021 $51K 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 79423 ZCTA.

2000
23,992
 
2010
32,277
▲ +34.5%
2020
42,311
▲ +31.1%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number485395
City AliasesLubbock

06Frequently Asked Questions

What county is ZIP code 79423 in?

ZIP code 79423 is in Lubbock County, Texas (county FIPS code 48303).

What city is ZIP code 79423?

The primary USPS city for 79423 is Lubbock, TX.

What metro area (MSA) is 79423 in?

79423 is part of the Lubbock, TX Metro Area (MSA code 31180).

What is the population of ZIP code 79423?

The 2020 Census population of 79423 was 42,311 residents.

What is the median income in ZIP code 79423?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 79423 is about $51,355, with around 7% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.