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US ZIP Code Profile

ZIP Code 78380
Robstown, Texas

ZIP code 78380 is in Robstown, located in Nueces County, Texas, within the Corpus Christi metro area. Its 2020 Census population was 23,386. The estimated median adjusted gross income per tax return is $36,450, and about 4% of filers report $200,000 or more.

2020 Population
23,386
Census ZCTA
County
Nueces
FIPS 48355
Median income (est.)
$36,450
IRS SOI 2022
Land Area
335.763 mi²
+ 1.931 mi² water

01Location & Geography

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

Primary CityRobstown, TX
CountyNueces County (FIPS 48355)
StateTexas (FIPS 48)
Metro Area (MSA)Corpus Christi, TX Metro Area (18580)
Census Region / DivisionSouth Region · West South Central Division
Coordinates27.791252, -97.74214
Land / Water Area335.763 mi² land · 1.931 mi² water

02Income & Economics

Distribution of the 9,270 individual tax returns filed in 78380 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
37.6%
$25K–$50K
27.0%
$50K–$75K
13.4%
$75K–$100K
7.3%
$100K–$200K
11.0%
$200K+
3.7%
The $200,000+ bracket accounts for 34% of 78380's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($36,450) 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 78380's IRS income metrics, 2020–2022.

Median income (2021→2022)
$36,450
▲ 9.7%
Filers earning $200K+
3.7%
▲ 0.5 pt
Total filers
9,270
▼ 1.0%
GET /zipc/v2/zipcodes/78380/soi?year=… $32K 2020 $33K 2021 $36K 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 78380 ZCTA.

2000
23,353
 
2010
23,141
▼ -0.9%
2020
23,386
▲ +1.1%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number487665
City AliasesBluntzer, Petronila, Rabb, Robstown, San Pedro, South San Pedro, Violet

06Frequently Asked Questions

What county is ZIP code 78380 in?

ZIP code 78380 is in Nueces County, Texas (county FIPS code 48355).

What city is ZIP code 78380?

The primary USPS city for 78380 is Robstown, TX.

What metro area (MSA) is 78380 in?

78380 is part of the Corpus Christi, TX Metro Area (MSA code 18580).

What is the population of ZIP code 78380?

The 2020 Census population of 78380 was 23,386 residents.

What is the median income in ZIP code 78380?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78380 is about $36,450, 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.