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US ZIP Code Profile

ZIP Code 78374
Portland, Texas

ZIP code 78374 is in Portland, located in San Patricio County, Texas, within the Corpus Christi metro area. Its 2020 Census population was 20,281. The estimated median adjusted gross income per tax return is $54,757, and about 6% of filers report $200,000 or more.

2020 Population
20,281
Census ZCTA
County
San Patricio
FIPS 48409
Median income (est.)
$54,757
IRS SOI 2022
Land Area
47.532 mi²
+ 0.444 mi² water

01Location & Geography

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

Primary CityPortland, TX
CountySan Patricio County (FIPS 48409)
StateTexas (FIPS 48)
Metro Area (MSA)Corpus Christi, TX Metro Area (18580)
Census Region / DivisionSouth Region · West South Central Division
Coordinates27.892132, -97.38424
Land / Water Area47.532 mi² land · 0.444 mi² water

02Income & Economics

Distribution of the 8,850 individual tax returns filed in 78374 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
25.9%
$25K–$50K
21.2%
$50K–$75K
15.1%
$75K–$100K
10.6%
$100K–$200K
20.7%
$200K+
6.4%
The $200,000+ bracket accounts for 28% of 78374's total adjusted gross income, from 6% of returns — a concentration that drives the gap between the median ($54,757) 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 78374's IRS income metrics, 2020–2022.

Median income (2021→2022)
$54,757
▲ 5.6%
Filers earning $200K+
6.4%
▲ 0.7 pt
Total filers
8,850
▲ 0.1%
GET /zipc/v2/zipcodes/78374/soi?year=… $50K 2020 $52K 2021 $55K 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 78374 ZCTA.

2000
15,550
 
2010
16,620
▲ +6.9%
2020
20,281
▲ +22.0%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number487215
City AliasesPortland

06Frequently Asked Questions

What county is ZIP code 78374 in?

ZIP code 78374 is in San Patricio County, Texas (county FIPS code 48409).

What city is ZIP code 78374?

The primary USPS city for 78374 is Portland, TX.

What metro area (MSA) is 78374 in?

78374 is part of the Corpus Christi, TX Metro Area (MSA code 18580).

What is the population of ZIP code 78374?

The 2020 Census population of 78374 was 20,281 residents.

What is the median income in ZIP code 78374?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78374 is about $54,757, with around 6% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.