Residential delivery area · Texas
ZIP Code 77979: Port Lavaca, TX
ZIP code 77979 uses the postal name Port Lavaca, Texas and lies mostly in Calhoun County (80% of its land), reaching into Victoria County and Jackson County (Census 2020 ZIP-county file). About 16,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $77,039 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Port Lavaca (3%), Magnolia Beach (under 1%), Point Comfort (under 1%) and Alamo Beach (under 1%); 96% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Port Lavaca · its only residential ZIP
- County
- Calhoun County (80%); Victoria County (11%); Jackson County (9%)
- Census places
- Port Lavaca (3%); Magnolia Beach (under 1%) census-designated place; Point Comfort (under 1%); Alamo Beach (under 1%) census-designated place
- Micro area
- Port Lavaca, TX
- House district
- TX-27 119th Congress
- State
- Texas
- Time zone
- Central
- Land area
- 340.5 sq mi · 48 people per sq mi
Where is ZIP code 77979?
77979 centers on 28.610°, -96.619° and covers 340.5 square miles of land plus 147.8 of water. It borders 12 ZIP codes: 77978, 77969, 77977, 77991, 77982, 77971, 77983, 77951, 77970, 77990 and more.
The map draws ZIP code areas only. For the streets inside 77979, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 77979 compare with the rest of Calhoun County?
| Measure | 77979 | In Calhoun County | In TX |
|---|---|---|---|
| People (ACS 2020-2024) | 16,488 | 1st of 6 | 652nd of 1,990 |
| Median household income | $77k | 1st of 2 | 498th of 1,172 |
| Median home value | $156k | 1st of 1 | 945th of 1,172 |
Its median household income is higher than in 58% of U.S. residential ZIP codes, and it is denser than 42% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 77979?
The 2020 Census counted 16,782 people in 77979; the ACS, which samples households over 2020-2024, estimates 16,488. Between the 2010 and 2020 censuses its population fell 2.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 16,488
- 2020 Census count
- 16,782−2.1% since 2010 (17,144)
- Households
- 7,140
- Median age
- 40.1
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 77979?
Of the 16,488 people the ACS estimates in 77979, 23.5% are under 18 and 17.3% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (54.7%), then White (not Hispanic) (35.5%).
- Under 1823.5%
- 18 to 6459.2%
- 65 and older17.3%
- Hispanic or Latino54.7%
- White, not Hispanic35.5%
- Asian, not Hispanic4.9%
- Black, not Hispanic2.9%
- Other or two or more2.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 77979 earn?
Median household income is $77,039 (ACS 2020-2024). It is not measurably different from 2015-2019 ($72,241 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $77,039±$8,517
- Income per person
- $41,161
- Below the poverty line
- 9.1%
- Unemployed (of the labor force)
- 8.0%
- Adults 25+ with a bachelor's degree
- 20.0%
- Adjusted gross income per tax return, 2022
- $66,0657,350 returns; wages 77% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 77979?
FHFA's house price index for 77979, built from repeat sales and appraisals of the same homes, rose 71% from 2015 to 2025 and rose 42% from 2020 to 2025, and moved +8.3% in 2025.
- Median home value (owners' estimate)
- $156,200
- Median gross rent
- $865
- Homes owned by their occupants
- 75.3%
- Housing units
- 8,307
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 77979?
347 business establishments had a location in this ZIP code in 2023, 1 more than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services55
- Retail trade46
- Other services (except public administration)40
- Construction33
- Health care and social assistance30
- Professional, scientific, and technical services26
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 77979?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 77978 | Point Comfort | 304 | $143k | 6.1 mi |
| 77969 | La Salle | 84 | $65k | 12.1 mi |
| 77977 | Placedo | 539 | – | 12.1 mi |
| 77991 | Vanderbilt | 440 | – | 12.2 mi |
| 77982 | Port O Connor | 620 | $96k | 13.8 mi |
| 77971 | Lolita | 744 | $60k | 16.5 mi |
| 77983 | Seadrift | 2,529 | $98k | 16.8 mi |
| 77951 | Bloomington | 1,930 | $50k | 17.8 mi |
| 77970 | La Ward | 217 | – | 19.8 mi |
| 77990 | Tivoli | 590 | $75k | 20.5 mi |
| 77465 | Palacios | 7,681 | $65k | 24.8 mi |
| 77968 | Inez | 2,605 | $76k | 25.5 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.