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Texas ZIP Codes
San Patricio County
Portland, TX
78374
78374 ZIP Code — Portland, TX
San Patricio County, Texas
ZIP code 78374 is located in
Portland ,
Texas ,
within San Patricio County .
It covers approximately 18.56 square miles and serves a population of
20,037 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 361 .
About ZIP code 78374
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $217,400. Owner-occupancy sits near the national average at 65%.
Median household income is $82,791.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 21 minutes is near the national average.
Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.
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Cities in ZIP code 78374
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Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
20,037
Population density
1,080 / sq mi
State FIPS
48
County FIPS
409
Geography
Land area
18.56 sq mi
Water area
0.21 sq mi
Latitude
27.9371
Longitude
-97.3056
Timezone
Central (CT)
Area code
361
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
32.2%
46.9%
39.5%
$50k – $100k
30.5%
28.6%
30.1%
$100k – $200k
28.7%
20.1%
22.6%
Over $200k
8.6%
4.4%
7.8%
Demographics & statistics
$82,791
Median household income
$217,400
Median home value
$1,731
Median monthly rent
27.1%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 5,228 26.1%
18 and over 14,809 73.9%
65 and over 2,679 13.4%
Median age 34.1 years
Race & ethnicity
Black or African American
1.4%
American Indian / Alaska Native
0.4%
Native Hawaiian / Pacific Islander
0.3%
Group Count %
White 15,433 66.2%
Hispanic or Latino 3,292 14.1%
Two or more races 3,030 13%
Other race 706 3%
Asian 364 1.6%
Black or African American 338 1.4%
American Indian / Alaska Native 101 0.4%
Native Hawaiian / Pacific Islander 65 0.3%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
32.2%
46.9%
39.5%
$50k – $100k
30.5%
28.6%
30.1%
$100k – $200k
28.7%
20.1%
22.6%
Over $200k
8.6%
4.4%
7.8%
Range % of households
Under $10k 4.3%
$10k–$15k 3.1%
$15k–$25k 2.6%
$25k–$35k 5.6%
$35k–$50k 9.7%
$50k–$75k 19.5%
$75k–$100k 14.8%
$100k–$150k 18.9%
$150k–$200k 8.5%
$200k+ 13.0%
Median income $82,791
Housing
Housing overview
Metric Value
Median home value $217,400
Median rent / month $1,731
Owner occupied 65.4%
Renter occupied 34.6%
Vacant 14.8%
Single-family detached 72.3%
Large apartment buildings 5.9%
Mobile homes 2.3%
Median rooms 5.8
Avg household size (owned) 2.84
Year built
Era %
2020 or later 0.6%
2010–2019 20.3%
2000–2009 12.6%
1990–1999 10.5%
1980–1989 11.5%
1970–1979 26.5%
1960–1969 10.2%
1950–1959 6.7%
1940–1949 0.9%
1939 or earlier 0.3%
Bedrooms
Size % of units
No bedroom (studio) 0.8%
1 bedroom 7.5%
2 bedrooms 17.2%
3 bedrooms 46.9%
4 bedrooms 24.9%
5+ bedrooms 2.7%
Vehicles per household
Vehicles % of households
No vehicle 3.7%
1 vehicle 30.0%
2 vehicles 45.9%
3 or more 20.4%
Heating fuel
Fuel type %
Utility gas 20.3%
Electricity 78.1%
Propane / LP gas 1.5%
No fuel used 0.2%
Households & families
Household type Count %
Married-couple family 3,807 54.1%
Cohabiting couple 309 4.4%
Male householder, no spouse 1,119 15.9%
Female householder, no spouse 1,802 25.6%
Households with children under 18 2,656 37.7%
Households with seniors (65+) 1,894 26.9%
Average household size 2.84
Marital status
Status Male Female
Never married 32.3% 26.0%
Married 51.9% 51.7%
Separated 0.8% 1.9%
Widowed 2.6% 8.2%
Divorced 12.3% 12.2%
Education
Some college, no degree
26.0%
Graduate / professional
8.9%
Metric %
HS diploma or higher 92.1%
Bachelor's or higher 27.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 267 5.4%
Kindergarten 314 6.3%
Elementary school 2,665 53.5%
High school 797 16.0%
College / grad school 942 18.9%
Employment
Industry of employment
Education & healthcare
24.6%
Arts, food & hospitality
7.9%
Professional & management
7.6%
Transportation & utilities
6.3%
Public administration
5.8%
Finance & real estate
4.6%
Agriculture & mining
4.4%
Occupation
Category %
Management, business & arts 42.9%
Service 17.0%
Sales & office 18.1%
Natural resources & construction 9.0%
Production & transportation 13.0%
Employment type
Type %
Private sector 79.5%
Government 14.5%
Self-employed 6.0%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 87.7%
Carpool 4.3%
Public transit 0.4%
Walk 0.7%
Work from home 6.7%
Other means 0.2%
Avg commute (minutes) 20.6
Poverty
Married-couple families
2.5%
Female-led households
28.1%
Income support
Source % of households
Social Security 28.5%
Retirement income 22.1%
Supplemental Security 3.2%
Cash public assistance 2.4%
Food stamps / SNAP 10.8%
Health indicators
Condition %
Obesity 39.3%
High blood pressure 31.7%
High cholesterol 32.4%
Diabetes 10.5%
Heart disease 5.4%
Stroke 2.4%
Asthma 8.8%
Arthritis 20.7%
Kidney disease 2.6%
Pulmonary disease 5.5%
Cancer 5.8%
Behavior / access %
Smoking 17.4%
Binge drinking 18.7%
No physical activity 25.7%
Less than 7 hrs sleep 33.3%
Depression 22.0%
Fair or poor health 15.0%
Poor mental health 14.9%
Poor physical health 10.3%
No health insurance 26.0%
Visited doctor (checkup) 69.5%
Visited dentist 52.9%
Cholesterol screening 89.3%
Teeth loss 11.5%
Veterans & disability
Veterans Count %
Civilian veterans 1,585 10.7%
Disability %
Any disability 14.3%
Under 18 4.8%
18–64 years 10.5%
65 and over 50.7%
Health insurance coverage
Type %
Private insurance 68.3%
Public insurance 25.5%
No insurance 14.7%
Uninsured under 19 8.4%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 18,588 92.8%
Spanish 724 3.9%
Other Indo-European 436 2.3%
Asian & Pacific Islander 208 1.1%
Other languages 80 0.4%
Place of birth & citizenship
Origin Count %
Native born (US) 18,986 94.8%
Born in same state 18,785 93.8%
Born in different state 14,480 72.3%
Foreign born 201 1.0%
Naturalized citizen 1,051 5.2%
Not a US citizen 297 28.3%
Ancestry
Ancestry Count %
French 2,397 12%
Italian 1,624 8.1%
Arab 787 3.9%
English 128 0.6%
Ancestry Count %
Polish 106 0.5%
Dutch 77 0.4%
German 76 0.4%
Irish 43 0.2%
Technology access
Metric % of households
Computer access 35.1%
Internet access 98.2%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 78374
What city is ZIP code 78374 in?
ZIP code 78374 is primarily assigned to Portland, Texas.
What county is ZIP code 78374 in?
ZIP code 78374 falls within San Patricio County, Texas.
Does ZIP code 78374 have a large veteran population?
11% of civilians in ZIP code 78374 are veterans, above the national average of ~7%.
What is the population of ZIP code 78374?
ZIP code 78374 has an estimated population of 20,037 residents, with a density of 1,080 people per square mile.
What is the typical home value in ZIP code 78374?
The median home value in ZIP code 78374 is $217,400.
What is the median household income in ZIP code 78374?
The median household income in ZIP code 78374 is $82,791, above the national median of ~$75,000.
What timezone is ZIP code 78374 in?
ZIP code 78374 observes the CST timezone.
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