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US ZIP Code Profile

ZIP Code 78557
Hidalgo, Texas

ZIP code 78557 is in Hidalgo, located in Hidalgo County, Texas, within the McAllen-Edinburg-Mission metro area. Its 2020 Census population was 13,986. The estimated median adjusted gross income per tax return is $28,198, and about 1% of filers report $200,000 or more.

2020 Population
13,986
Census ZCTA
County
Hidalgo
FIPS 48215
Median income (est.)
$28,198
IRS SOI 2022
Land Area
11.73 mi²
+ 0.324 mi² water

01Location & Geography

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

Primary CityHidalgo, TX
CountyHidalgo County (FIPS 48215)
StateTexas (FIPS 48)
Metro Area (MSA)McAllen-Edinburg-Mission, TX Metro Area (32580)
Census Region / DivisionSouth Region · West South Central Division
Coordinates26.11355, -98.24108
Land / Water Area11.73 mi² land · 0.324 mi² water

02Income & Economics

Distribution of the 7,330 individual tax returns filed in 78557 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
46.2%
$25K–$50K
29.3%
$50K–$75K
12.6%
$75K–$100K
5.7%
$100K–$200K
5.2%
$200K+
0.9%
The $200,000+ bracket accounts for 11% of 78557's total adjusted gross income, from 1% of returns — a concentration that drives the gap between the median ($28,198) 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 78557's IRS income metrics, 2020–2022.

Median income (2021→2022)
$28,198
▲ 10.9%
Filers earning $200K+
0.9%
▲ 0.2 pt
Total filers
7,330
▲ 1.9%
GET /zipc/v2/zipcodes/78557/soi?year=… $25K 2020 $25K 2021 $28K 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 78557 ZCTA.

2000
7,768
 
2010
12,547
▲ +61.5%
2020
13,986
▲ +11.5%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number484040
City AliasesHidalgo

06Frequently Asked Questions

What county is ZIP code 78557 in?

ZIP code 78557 is in Hidalgo County, Texas (county FIPS code 48215).

What city is ZIP code 78557?

The primary USPS city for 78557 is Hidalgo, TX.

What metro area (MSA) is 78557 in?

78557 is part of the McAllen-Edinburg-Mission, TX Metro Area (MSA code 32580).

What is the population of ZIP code 78557?

The 2020 Census population of 78557 was 13,986 residents.

What is the median income in ZIP code 78557?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78557 is about $28,198, 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.