77979 ZIP Code — Port Lavaca, TX
Calhoun County, Texas
ZIP code 77979 is located in Port Lavaca, Texas, within Calhoun County. It covers approximately 340.46 square miles and serves a population of 16,607 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 361.
About ZIP code 77979
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 $123,500. Owner-occupancy sits near the national average at 75%.
Median household income is $60,782.
The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 16 minutes is near the national average.
College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.
16,607
population
340.46
sq mi land
Standard
ZIP type
Central (CT)
timezone
77979 ZIP code map
Cities in ZIP code 77979
Below are the cities the US Postal Service accepts for ZIP code 77979. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Port Lavaca | Acceptable |
| Port Lavaca | Preferred |
Nearby ZIP codes
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 16,607 |
| Population density | 49 / sq mi |
| State FIPS | 48 |
| County FIPS | 057 |
| Geography | |
|---|---|
| Land area | 340.46 sq mi |
| Water area | 147.80 sq mi |
| Latitude | 28.5472 |
| Longitude | -96.6521 |
| Timezone | Central (CT) |
| Area code | 361 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 44.1% | 44.5% | 39.5% |
| $50k – $100k | 34.4% | 33.9% | 30.1% |
| $100k – $200k | 18.1% | 18.1% | 22.6% |
| Over $200k | 3.4% | 3.4% | 7.8% |
Demographics & statistics
16,607
Population
49
People per sq mi
37.4
Median age
$60,782
Median household income
$32,351
Per capita income
$123,500
Median home value
$944
Median monthly rent
74.6%
Home ownership
9.8%
Poverty rate
3.3%
Unemployment
6,124
Housing units
16.8%
Bachelor's or higher
Age distribution
Male
Female
518
Under 5
508
641
5–9
628
496
10–14
486
580
15–19
568
541
20–24
529
1,096
25–34
1,074
945
35–44
926
995
45–54
974
662
55–59
649
487
60–64
476
833
65–74
815
369
75–84
361
227
85+
223
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 4,058 | 24.4% |
| 18 and over | 12,549 | 75.6% |
| 65 and over | 2,828 | 17.0% |
| Median age | 37.4 years | |
Race & ethnicity
White
55.5%
Hispanic or Latino
17.9%
Two or more races
15.5%
Other race
4.3%
Asian
3.7%
Black or African American
2.9%
American Indian / Alaska Native
0.3%
| Group | Count | % |
|---|---|---|
| White | 11,225 | 55.5% |
| Hispanic or Latino | 3,624 | 17.9% |
| Two or more races | 3,131 | 15.5% |
| Other race | 865 | 4.3% |
| Asian | 750 | 3.7% |
| Black or African American | 578 | 2.9% |
| American Indian / Alaska Native | 58 | 0.3% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 44.1% | 44.5% | 39.5% |
| $50k – $100k | 34.4% | 33.9% | 30.1% |
| $100k – $200k | 18.1% | 18.1% | 22.6% |
| Over $200k | 3.4% | 3.4% | 7.8% |
Under $10k
3.2%
$10k–$15k
5.9%
$15k–$25k
4.7%
$25k–$35k
8.4%
$35k–$50k
15.1%
$50k–$75k
24.0%
$75k–$100k
12.7%
$100k–$150k
14.9%
$150k–$200k
4.9%
$200k+
6.2%
| Range | % of households |
|---|---|
| Under $10k | 3.2% |
| $10k–$15k | 5.9% |
| $15k–$25k | 4.7% |
| $25k–$35k | 8.4% |
| $35k–$50k | 15.1% |
| $50k–$75k | 24.0% |
| $75k–$100k | 12.7% |
| $100k–$150k | 14.9% |
| $150k–$200k | 4.9% |
| $200k+ | 6.2% |
| Median income | $60,782 |
Housing
Home values
Under $50k
11.5%
$50k–$100k
21.2%
$100k–$150k
28.7%
$150k–$200k
14.6%
$200k–$300k
13.3%
$300k–$500k
9.6%
$500k–$1M
0.7%
$1M+
0.5%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $123,500 |
| Median rent / month | $944 |
| Owner occupied | 74.6% |
| Renter occupied | 25.4% |
| Vacant | 16.3% |
| Single-family detached | 73.9% |
| Large apartment buildings | 4.4% |
| Mobile homes | 10.3% |
| Median rooms | 5.5 |
| Avg household size (owned) | 2.60 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 9.4% |
| 2000–2009 | 8.7% |
| 1990–1999 | 8.8% |
| 1980–1989 | 11.1% |
| 1970–1979 | 14.6% |
| 1960–1969 | 18.9% |
| 1950–1959 | 22.8% |
| 1940–1949 | 4.2% |
| 1939 or earlier | 1.5% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 2.3% |
| 1 bedroom | 6.2% |
| 2 bedrooms | 22.8% |
| 3 bedrooms | 55.8% |
| 4 bedrooms | 12.4% |
| 5+ bedrooms | 0.6% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 5.2% |
| 1 vehicle | 29.9% |
| 2 vehicles | 46.3% |
| 3 or more | 18.5% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 28.3% |
| Electricity | 61.5% |
| Propane / LP gas | 8.0% |
| Wood | 0.2% |
| No fuel used | 2.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 3,396 | 52.2% |
| Cohabiting couple | 454 | 7.0% |
| Male householder, no spouse | 1,212 | 18.6% |
| Female householder, no spouse | 1,446 | 22.2% |
| Households with children under 18 | 2,070 | 31.8% |
| Households with seniors (65+) | 1,938 | 29.8% |
| Average household size | 2.51 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 25.6% | 25.3% |
| Married | 60.2% | 52.9% |
| Separated | 1.1% | 3.9% |
| Widowed | 3.0% | 7.7% |
| Divorced | 10.1% | 10.1% |
Education
Less than 9th grade
6.7%
Some HS, no diploma
8.9%
HS graduate
34.0%
Some college, no degree
24.2%
Associate's degree
9.4%
Bachelor's degree
10.2%
Graduate / professional
6.6%
| Metric | % |
|---|---|
| HS diploma or higher | 84.4% |
| Bachelor's or higher | 16.8% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 160 | 4.2% |
| Kindergarten | 342 | 9.0% |
| Elementary school | 1,704 | 44.7% |
| High school | 977 | 25.6% |
| College / grad school | 633 | 16.6% |
Employment
Industry of employment
Manufacturing
25.4%
Education & healthcare
22.0%
Retail trade
9.8%
Construction
9.0%
Professional & management
7.1%
Arts, food & hospitality
6.0%
Public administration
5.3%
Other services
5.2%
Agriculture & mining
3.3%
Finance & real estate
3.1%
Transportation & utilities
2.2%
Wholesale trade
1.0%
Information
0.5%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 31.9% |
| Service | 15.1% |
| Sales & office | 17.2% |
| Natural resources & construction | 16.9% |
| Production & transportation | 18.9% |
Employment type
| Type | % |
|---|---|
| Private sector | 78.5% |
| Government | 19.6% |
| Self-employed | 1.7% |
| Unpaid family workers | 0.2% |
Commute
| Method | % |
|---|---|
| Drive alone | 84.8% |
| Carpool | 12.7% |
| Public transit | 0.0% |
| Walk | 0.3% |
| Work from home | 2.2% |
| Other means | 0.0% |
| Avg commute (minutes) | 16.3 |
Poverty
All people
9.8%
Under 18 years
12.6%
18 and over
8.9%
Married-couple families
3.0%
Female-led households
18.8%
Income support
| Source | % of households |
|---|---|
| Social Security | 26.3% |
| Retirement income | 22.3% |
| Supplemental Security | 8.2% |
| Cash public assistance | 5.0% |
| Food stamps / SNAP | 16.9% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 39.9% |
| High blood pressure | 37.2% |
| High cholesterol | 34.9% |
| Diabetes | 14.4% |
| Heart disease | 7.3% |
| Stroke | 3.4% |
| Asthma | 9.0% |
| Arthritis | 23.5% |
| Kidney disease | 3.4% |
| Pulmonary disease | 7.3% |
| Cancer | 5.9% |
| Behavior / access | % |
|---|---|
| Smoking | 19.3% |
| Binge drinking | 17.1% |
| No physical activity | 30.9% |
| Less than 7 hrs sleep | 35.0% |
| Depression | 21.3% |
| Fair or poor health | 21.8% |
| Poor mental health | 15.6% |
| Poor physical health | 13.0% |
| No health insurance | 35.3% |
| Visited doctor (checkup) | 70.6% |
| Visited dentist | 46.8% |
| Cholesterol screening | 87.8% |
| Teeth loss | 17.5% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,061 | 8.5% |
| Disability | % |
|---|---|
| Any disability | 19.0% |
| Under 18 | 8.0% |
| 18–64 years | 15.1% |
| 65 and over | 50.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 71.3% |
| Public insurance | 34.9% |
| No insurance | 8.7% |
| Uninsured under 19 | 7.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 15,581 | 93.8% |
| Spanish | 1,581 | 10.1% |
| Other Indo-European | 1,180 | 7.6% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 401 | 2.6% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 14,787 | 89.0% |
| Born in same state | 14,641 | 88.2% |
| Born in different state | 13,217 | 79.6% |
| Foreign born | 146 | 0.9% |
| Naturalized citizen | 1,820 | 11.0% |
| Not a US citizen | 923 | 50.7% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Arab | 684 | 4.1% |
| Italian | 630 | 3.8% |
| French | 358 | 2.2% |
| Polish | 18 | 0.1% |
| Ancestry | Count | % |
|---|---|---|
| English | 17 | 0.1% |
| Dutch | 17 | 0.1% |
| German | 5 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 39.2% |
| Internet access | 90.2% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 77979
What city is ZIP code 77979 in?
ZIP code 77979 is primarily assigned to Port Lavaca, Texas.
What county is ZIP code 77979 in?
ZIP code 77979 falls within Calhoun County, Texas.
What is the typical home value in ZIP code 77979?
The median home value in ZIP code 77979 is $123,500.
What is the population of ZIP code 77979?
ZIP code 77979 has an estimated population of 16,607 residents, with a density of 49 people per square mile.
What is the median household income in ZIP code 77979?
The median household income in ZIP code 77979 is $60,782, below the national median of ~$75,000.
What timezone is ZIP code 77979 in?
ZIP code 77979 observes the CST timezone.