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US ZIP Code Profile

ZIP Code 78040
Laredo, Texas

ZIP code 78040 is in Laredo, located in Webb County, Texas, within the Laredo metro area. Its 2020 Census population was 36,688. The estimated median adjusted gross income per tax return is $20,392, and about 1% of filers report $200,000 or more.

2020 Population
36,688
Census ZCTA
County
Webb
FIPS 48479
Median income (est.)
$20,392
IRS SOI 2022 · approx.
Land Area
6.301 mi²
+ 0.126 mi² water

01Location & Geography

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

Primary CityLaredo, TX
CountyWebb County (FIPS 48479)
StateTexas (FIPS 48)
Metro Area (MSA)Laredo, TX Metro Area (29700)
Census Region / DivisionSouth Region · West South Central Division
Coordinates27.513374, -99.50214
Land / Water Area6.301 mi² land · 0.126 mi² water

02Income & Economics

Distribution of the 17,570 individual tax returns filed in 78040 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
61.3%
$25K–$50K
26.5%
$50K–$75K
7.5%
$75K–$100K
2.5%
$100K–$200K
1.7%
$200K+
0.5%
The $200,000+ bracket accounts for 10% of 78040's total adjusted gross income, from 1% of returns — a concentration that drives the gap between the median ($20,392) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income. Estimate is approximate for this ZIP (median falls in the lowest bracket).

03Income Over Time

Year-over-year change in 78040's IRS income metrics, 2020–2022.

Median income (2021→2022)
$20,392
▲ 8.4%
Filers earning $200K+
0.5%
▲ 0.1 pt
Total filers
17,570
▼ 3.5%
GET /zipc/v2/zipcodes/78040/soi?year=… $19K 2020 $19K 2021 $20K 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 78040 ZCTA.

2000
43,215
 
2010
42,083
▼ -2.6%
2020
36,688
▼ -12.8%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number484950
City AliasesLaredo

06Frequently Asked Questions

What county is ZIP code 78040 in?

ZIP code 78040 is in Webb County, Texas (county FIPS code 48479).

What city is ZIP code 78040?

The primary USPS city for 78040 is Laredo, TX.

What metro area (MSA) is 78040 in?

78040 is part of the Laredo, TX Metro Area (MSA code 29700).

What is the population of ZIP code 78040?

The 2020 Census population of 78040 was 36,688 residents.

What is the median income in ZIP code 78040?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78040 is about $20,392, with around 1% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.