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Texas ZIP Codes
Nueces County
Agua Dulce, TX
78330
78330 ZIP Code — Agua Dulce, TX
Nueces County, Texas
ZIP code 78330 is located in
Agua Dulce ,
Texas ,
within Nueces County .
It covers approximately 21.67 square miles and serves a population of
489 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 361 .
About ZIP code 78330
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1950s, giving the area an established character. Median home value is $85,000. Owner-occupancy is high at 84%, well above the national average.
Median household income is $53,077. The poverty rate of 6% is below the national average. SNAP benefit usage at 19% of households reflects economic stress in the area. 38% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 33 minutes is near the national average.
College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.
28% of residents lack health insurance, above the national average.
Overall, ZIP code 78330 reflects a community defined by a trades-oriented workforce, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.
78330 ZIP code map
View map of 78330
Cities in ZIP code 78330
Below are the cities the US Postal Service accepts for ZIP code 78330. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
489
Population density
23 / sq mi
State FIPS
48
County FIPS
355
Geography
Land area
21.67 sq mi
Water area
0.01 sq mi
Latitude
27.7810
Longitude
-97.8551
Timezone
Central (CT)
Area code
361
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
59.1%
44.0%
39.5%
$50k – $100k
32.8%
30.8%
30.1%
$100k – $200k
5.2%
20.5%
22.6%
Over $200k
3.0%
4.7%
7.8%
Demographics & statistics
$53,077
Median household income
15.3%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 114 23.3% 18 and over 375 76.7% 65 and over 121 24.7% Median age 41.4 years
Race & ethnicity
Group Count % White 391 71.4% Hispanic or Latino 59 10.8% Two or more races 59 10.8% Asian 39 7.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
59.1%
44.0%
39.5%
$50k – $100k
32.8%
30.8%
30.1%
$100k – $200k
5.2%
20.5%
22.6%
Over $200k
3.0%
4.7%
7.8%
Range % of households $15k–$25k 20.8% $25k–$35k 7.9% $35k–$50k 19.7% $50k–$75k 12.4% $75k–$100k 17.4% $100k–$150k 20.2% $200k+ 1.7% Median income $53,077
Housing
Housing overview
Metric Value Median home value $85,000 Median rent / month $0 Owner occupied 84.3% Renter occupied 15.7% Vacant 20.9% Single-family detached 90.2% Large apartment buildings 0.0% Mobile homes 9.8% Median rooms 5.3 Avg household size (owned) 2.48
Year built
Era % 2020 or later 0.0% 2010–2019 5.3% 2000–2009 4.0% 1990–1999 6.7% 1980–1989 8.9% 1970–1979 15.6% 1960–1969 15.6% 1950–1959 28.4% 1940–1949 15.6% 1939 or earlier 0.0%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 0.0% 2 bedrooms 16.4% 3 bedrooms 70.7% 4 bedrooms 12.9% 5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households No vehicle 3.4% 1 vehicle 34.8% 2 vehicles 40.4% 3 or more 21.3%
Heating fuel
Fuel type % Utility gas 24.2% Electricity 75.8%
Households & families
Household type Count % Married-couple family 110 61.8% Cohabiting couple 19 10.7% Male householder, no spouse 9 5.1% Female householder, no spouse 40 22.5% Households with children under 18 50 28.1% Households with seniors (65+) 76 42.7% Average household size 2.75
Marital status
Status Male Female Never married 19.0% 15.0% Married 62.6% 59.9% Separated 2.6% 0.0% Widowed 2.1% 12.1% Divorced 13.8% 13.0%
Education
Some HS, no diploma
13.3%
Some college, no degree
13.9%
Graduate / professional
6.7%
Metric % HS diploma or higher 81.1% Bachelor's or higher 15.3%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 0 0.0% Kindergarten 0 0.0% Elementary school 6 16.2% High school 24 64.9% College / grad school 7 18.9%
Employment
Industry of employment
Education & healthcare
22.9%
Public administration
9.7%
Transportation & utilities
9.1%
Professional & management
9.1%
Arts, food & hospitality
6.3%
Finance & real estate
4.6%
Agriculture & mining
2.3%
Occupation
Category % Management, business & arts 19.4% Service 27.4% Sales & office 18.3% Natural resources & construction 12.6% Production & transportation 22.3%
Employment type
Type % Private sector 55.4% Government 26.9% Self-employed 17.7% Unpaid family workers 0.0%
Commute
Method % Drive alone 80.3% Carpool 12.7% Public transit 0.0% Walk 0.0% Work from home 6.9% Other means 0.0% Avg commute (minutes) 32.7
Poverty
Married-couple families
0.0%
Female-led households
28.6%
Income support
Source % of households Social Security 38.2% Retirement income 16.9% Supplemental Security 3.4% Cash public assistance 0.0% Food stamps / SNAP 18.5%
Health indicators
Condition % Obesity 39.2% High blood pressure 34.5% High cholesterol 35.2% Diabetes 14.3% Heart disease 6.6% Stroke 2.9% Asthma 8.7% Arthritis 22.3% Kidney disease 3.1% Pulmonary disease 5.5% Cancer 5.5%
Behavior / access % Smoking 16.6% Binge drinking 17.4% No physical activity 31.6% Less than 7 hrs sleep 35.4% Depression 22.2% Fair or poor health 20.5% Poor mental health 15.3% Poor physical health 12.1% No health insurance 37.9% Visited doctor (checkup) 67.9% Visited dentist 45.2% Cholesterol screening 89.1% Teeth loss 13.4%
Veterans & disability
Veterans Count % Civilian veterans 37 9.9%
Disability % Any disability 14.5% Under 18 0.0% 18–64 years 6.7% 65 and over 44.6%
Health insurance coverage
Type % Private insurance 38.2% Public insurance 42.5% No insurance 28.2% Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 425 86.9% Spanish 61 14.4% Other Indo-European 55 12.9% Asian & Pacific Islander 0 0.0% Other languages 6 1.4%
Place of birth & citizenship
Origin Count % Native born (US) 472 96.5% Born in same state 440 90.0% Born in different state 414 84.7% Foreign born 32 6.5% Naturalized citizen 17 3.5% Not a US citizen 14 82.4%
Ancestry
Ancestry Count % Italian 22 4.5% French 5 1%
Ancestry Count % English 4 0.8%
Technology access
Metric % of households Computer access 36.4% Internet access 72.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 78330
What city is ZIP code 78330 in?
ZIP code 78330 is primarily assigned to Agua Dulce, Texas.
What county is ZIP code 78330 in?
ZIP code 78330 falls within Nueces County, Texas.
Is ZIP code 78330 mostly owner-occupied?
84% of occupied units in ZIP code 78330 are owner-occupied, well above the national average.
Does ZIP code 78330 have a large retiree population?
38% of households in ZIP code 78330 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 78330?
The median home value in ZIP code 78330 is $85,000.
Does ZIP code 78330 have a large veteran population?
10% of civilians in ZIP code 78330 are veterans, above the national average of ~7%.
What timezone is ZIP code 78330 in?
ZIP code 78330 observes the CST timezone.
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