Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/TX/PORTLAND

Portland ZIP code, Texas

The ZIP code for Portland, TX is 78374, and its area code is 361.

USPS city name
1 ZIP code
Overlapping the city
3 more
Population
20,543
Area code
361
State
Texas

NANPA lists no telephone rate centre for Portland itself, so these are the area codes of the nearest one, Ingleside (6.7 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Portland uses the ZIP code above. 3 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Portland in numbers

About 20,543 people live in Portland, in 7,554 households. The median household income is $83,865 a year, 7% above the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $234,800 (17% below the Texas median), and median gross rent is $1,577 a month. The median age is 34.7; 25.7% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 21 minutes.

Population20,543Portland20,543
Households7,554Portland7,554
Median age34.7Portland34.7Texas35.6US 38.9
Median household income$83,865Portland$83,865Texas$78,476US $80,734
Median home value$234,800Portland$234,800Texas$283,800US $332,700
Median gross rent$1,577Portland$1,577Texas$1,403US $1,413
Bachelor's degree or higher25.7%Portland25.7%Texas33.8%US 35.7%
Mean commute20.5 minPortland20.5 minTexas26.7 minUS 26.4 min
Population density1,694 / sq miPortland1,694 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Portland city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Portland

ZIP codes with the USPS city name Portland
ZIP City Type Population Median income Median home
78374 Portland , TX Standard 20,408 $83,504 $233,800

Other ZIP codes overlapping Portland

These ZIP codes cover part of Portland but are addressed as somewhere else.

ZIP codes overlapping Portland
ZIP City Type Population Median income Median home
78359 Gregory , TX Standard 2,154 $45,458 $117,700
78390 Taft , TX Standard 6,013 $78,367 $135,700
78402 Corpus Christi , TX Standard 554 $55,565 $193,000

Map of Portland ZIP codes

78374

The ZIP codes of Portland, TX, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Portland

The nearest larger towns are Corpus Christi (317,419 people, 13 mi), Kingsville (24,994 people, 42 mi) and Victoria (65,625 people, 68 mi).

Towns near Portland
TownPopulationDistance
Taft 2,871 7.3 mi
Ingleside 9,997 7.7 mi
Corpus Christi 317,419 13.4 mi
Aransas Pass 8,972 14.1 mi
Sinton 5,584 14.6 mi
Port Aransas 3,268 15.5 mi
Rockport 10,683 20.4 mi
Robstown 10,236 21.6 mi
Refugio 2,766 29.1 mi

More nearby: every ZIP code in San Patricio County · Texas ZIP codes

Cite this page

zipcodes.pro. “Portland, TX ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/tx/portland

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