Get API Key →
US ZIP Code Profile

ZIP Code 78582
Rio Grande City, Texas

ZIP code 78582 is in Rio Grande City, located in Starr County, Texas, within the Rio Grande City metro area. Its 2020 Census population was 43,253. The estimated median adjusted gross income per tax return is $26,097, and about 1% of filers report $200,000 or more.

2020 Population
43,253
Census ZCTA
County
Starr
FIPS 48427
Median income (est.)
$26,097
IRS SOI 2022
Land Area
651.071 mi²
+ 1.84 mi² water

01Location & Geography

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

Primary CityRio Grande City, TX
CountyStarr County (FIPS 48427)
StateTexas (FIPS 48)
Metro Area (MSA)Rio Grande City, TX Micro Area (40100)
Census Region / DivisionSouth Region · West South Central Division
Coordinates26.530903, -98.740234
Land / Water Area651.071 mi² land · 1.84 mi² water

02Income & Economics

Distribution of the 17,370 individual tax returns filed in 78582 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
48.8%
$25K–$50K
26.9%
$50K–$75K
11.7%
$75K–$100K
6.2%
$100K–$200K
5.7%
$200K+
0.7%
The $200,000+ bracket accounts for 7% of 78582's total adjusted gross income, from 1% of returns — a concentration that drives the gap between the median ($26,097) 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 78582's IRS income metrics, 2020–2022.

Median income (2021→2022)
$26,097
▼ 0.1%
Filers earning $200K+
0.7%
▲ 0.0 pt
Total filers
17,370
▲ 2.8%
GET /zipc/v2/zipcodes/78582/soi?year=… $26K 2020 $26K 2021 $26K 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 78582 ZCTA.

2000
33,406
 
2010
40,455
▲ +21.1%
2020
43,253
▲ +6.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number487600
City AliasesEl Sauz, Escobares, Fort Ringgold, Garceno, La Casita, Rincon, Rio Grande City, Santa Catarina, Santa Cruz, Villareales, Rio Grande, Rio Grande Cy

06Frequently Asked Questions

What county is ZIP code 78582 in?

ZIP code 78582 is in Starr County, Texas (county FIPS code 48427).

What city is ZIP code 78582?

The primary USPS city for 78582 is Rio Grande City, TX.

What metro area (MSA) is 78582 in?

78582 is part of the Rio Grande City, TX Micro Area (MSA code 40100).

What is the population of ZIP code 78582?

The 2020 Census population of 78582 was 43,253 residents.

What is the median income in ZIP code 78582?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78582 is about $26,097, 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.