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US ZIP Code Profile

ZIP Code 78330
Agua Dulce, Texas

ZIP code 78330 is in Agua Dulce, located in Nueces County, Texas, within the Corpus Christi metro area. Its 2020 Census population was 780. The estimated median adjusted gross income per tax return is $42,708.

2020 Population
780
Census ZCTA
County
Nueces
FIPS 48355
Median income (est.)
$42,708
IRS SOI 2022
Land Area
17.44 mi²
+ 0 mi² water

01Location & Geography

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

Primary CityAgua Dulce, 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
Coordinates27.742714, -97.915596
Land / Water Area17.44 mi² land · 0 mi² water

02Income & Economics

Distribution of the 430 individual tax returns filed in 78330 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
30.2%
$25K–$50K
27.9%
$50K–$75K
18.6%
$75K–$100K
9.3%
$100K–$200K
14.0%
$200K+
0.0%
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 78330's IRS income metrics, 2020–2022.

Median income (2021→2022)
$42,708
▲ 16.9%
Filers earning $200K+
0.0%
▲ 0.0 pt
Total filers
430
▲ 2.4%
GET /zipc/v2/zipcodes/78330/soi?year=… $38K 2020 $37K 2021 $43K 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 78330 ZCTA.

2000
1,001
 
2010
878
▼ -12.3%
2020
780
▼ -11.2%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number480075
City AliasesAgua Dulce

06Frequently Asked Questions

What county is ZIP code 78330 in?

ZIP code 78330 is in Nueces County, Texas (county FIPS code 48355).

What city is ZIP code 78330?

The primary USPS city for 78330 is Agua Dulce, TX.

What metro area (MSA) is 78330 in?

78330 is part of the Corpus Christi, TX Metro Area (MSA code 18580).

What is the population of ZIP code 78330?

The 2020 Census population of 78330 was 780 residents.

What is the median income in ZIP code 78330?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78330 is about $42,708. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.