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US ZIP Code Profile

ZIP Code 78583
Rio Hondo, Texas

ZIP code 78583 is in Rio Hondo, located in Cameron County, Texas, within the Brownsville-Harlingen metro area. Its 2020 Census population was 5,869. The estimated median adjusted gross income per tax return is $33,488, and about 2% of filers report $200,000 or more.

2020 Population
5,869
Census ZCTA
County
Cameron
FIPS 48061
Median income (est.)
$33,488
IRS SOI 2022
Land Area
88.343 mi²
+ 5.062 mi² water

01Location & Geography

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

Primary CityRio Hondo, 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
Coordinates26.261362, -97.48901
Land / Water Area88.343 mi² land · 5.062 mi² water

02Income & Economics

Distribution of the 2,690 individual tax returns filed in 78583 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
39.8%
$25K–$50K
30.1%
$50K–$75K
13.4%
$75K–$100K
7.1%
$100K–$200K
7.4%
$200K+
2.2%
The $200,000+ bracket accounts for 15% of 78583's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($33,488) 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 78583's IRS income metrics, 2020–2022.

Median income (2021→2022)
$33,488
▲ 6.4%
Filers earning $200K+
2.2%
▲ 0.4 pt
Total filers
2,690
▲ 0.0%
GET /zipc/v2/zipcodes/78583/soi?year=… $29K 2020 $31K 2021 $33K 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 78583 ZCTA.

2000
5,034
 
2010
6,623
▲ +31.6%
2020
5,869
▼ -11.4%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number487605
City AliasesRio Hondo

06Frequently Asked Questions

What county is ZIP code 78583 in?

ZIP code 78583 is in Cameron County, Texas (county FIPS code 48061).

What city is ZIP code 78583?

The primary USPS city for 78583 is Rio Hondo, TX.

What metro area (MSA) is 78583 in?

78583 is part of the Brownsville-Harlingen, TX Metro Area (MSA code 15180).

What is the population of ZIP code 78583?

The 2020 Census population of 78583 was 5,869 residents.

What is the median income in ZIP code 78583?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78583 is about $33,488, with around 2% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.