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US ZIP Code Profile

ZIP Code 78552
Harlingen, Texas

ZIP code 78552 is in Harlingen, located in Cameron County, Texas, within the Brownsville-Harlingen metro area. Its 2020 Census population was 38,474. The estimated median adjusted gross income per tax return is $39,352, and about 4% of filers report $200,000 or more.

2020 Population
38,474
Census ZCTA
County
Cameron
FIPS 48061
Median income (est.)
$39,352
IRS SOI 2022
Land Area
49.18 mi²
+ 0.399 mi² water

01Location & Geography

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

Primary CityHarlingen, TX
CountyCameron County (FIPS 48061)
StateTexas (FIPS 48)
Metro Area (MSA)Brownsville-Harlingen, TX Metro Area (15180)
Census Region / DivisionSouth Region · West South Central Division
Coordinates26.193783, -97.75069
Land / Water Area49.18 mi² land · 0.399 mi² water

02Income & Economics

Distribution of the 16,050 individual tax returns filed in 78552 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
35.5%
$25K–$50K
25.2%
$50K–$75K
14.5%
$75K–$100K
7.8%
$100K–$200K
12.6%
$200K+
4.3%
The $200,000+ bracket accounts for 29% of 78552's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($39,352) 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 78552's IRS income metrics, 2020–2022.

Median income (2021→2022)
$39,352
▲ 7.8%
Filers earning $200K+
4.3%
▲ 0.5 pt
Total filers
16,050
▲ 1.5%
GET /zipc/v2/zipcodes/78552/soi?year=… $35K 2020 $37K 2021 $39K 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 78552 ZCTA.

2000
29,965
 
2010
34,111
▲ +13.8%
2020
38,474
▲ +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 Number483890
City AliasesHarlingen, Palm Valley

06Frequently Asked Questions

What county is ZIP code 78552 in?

ZIP code 78552 is in Cameron County, Texas (county FIPS code 48061).

What city is ZIP code 78552?

The primary USPS city for 78552 is Harlingen, TX.

What metro area (MSA) is 78552 in?

78552 is part of the Brownsville-Harlingen, TX Metro Area (MSA code 15180).

What is the population of ZIP code 78552?

The 2020 Census population of 78552 was 38,474 residents.

What is the median income in ZIP code 78552?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78552 is about $39,352, 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.