ZIP code
78578
Port Isabel, TX
78578 covers Port Isabel in Cameron County, with 10,231 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 78578. Methodology
ZIP code map of 78578

About ZIP code 78578
Acceptable cities: Laguna Heights, Laguna Hts, Laguna Vista
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 78578. Not ACS. Methodology
People in 78578
Race
- White5,356
- Black or African American42
- American Indian or Alaska Native132
- Asian65
- Native Hawaiian and Pacific Islander5
- Other race1,427
- Two or more races3,049
Hispanic or Latino (any race): 6,702
Age
- Under 101,140
- 10 to 191,443
- 20 to 29919
- 30 to 391,003
- 40 to 491,095
- 50 to 591,283
- 60 to 691,591
- 70 to 791,131
- 80 and older471
Income and housing in 78578
Education
- High school graduate82.8%
- Bachelor's degree24.5%
- Graduate degree10.1%
Places covering 78578
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Port Isabel49.9%
- Laguna Vista34.9%
- Laguna Heights9.5%
- Brownsville0.1%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Cameron County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
5.5% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 78578
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 8,530 | |
| 2006 | 8,500 | |
| 2007 | 9,046 | |
| 2008 | 8,641 | |
| 2009 | 9,021 | |
| 2010 | 9,130 | |
| 2011 | 10,790 | 9,315 |
| 2012 | 11,245 | 9,360 |
| 2013 | 11,312 | 9,450 |
| 2014 | 11,709 | 9,400 |
| 2015 | 11,871 | 9,410 |
| 2016 | 11,955 | 9,150 |
| 2017 | 11,727 | 9,070 |
| 2018 | 11,677 | 8,820 |
| 2019 | 11,772 | 8,940 |
| 2020 | 11,509 | 8,800 |
| 2021 | 10,551 | 8,600 |
| 2022 | 10,540 | 8,490 |
| 2023 | 10,231 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 78578
12 nearest ZIP centroids (any distance)
- 78521Brownsville6.9 miPop 87,860 · Income $41,276
- 78566Los Fresnos8.2 miPop 24,927 · Income $64,385
- 78526Brownsville9.6 miPop 59,719 · Income $68,143
- 78575Olmito15.1 miPop 4,728 · Income $74,273
- 78597South Padre Island16.0 miPop 2,881 · Income $61,357
- 78520Brownsville16.1 miPop 63,337 · Income $47,331
- 78583Rio Hondo19.6 miPop 5,472 · Income $61,315
- 78586San Benito21.5 miPop 49,103 · Income $44,158
- 78550Harlingen26.5 miPop 54,169 · Income $51,524
- 78567Los Indios26.8 miPop 405 · Income —
- 78552Harlingen29.4 miPop 41,277 · Income $67,183
- 78535Combes29.9 miPop 435 · Income $30,144
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 78578, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 78578 FAQ
- What city is ZIP code 78578 in?
- 78578 is in Port Isabel, TX.
- What county is 78578 in?
- 78578 is in Cameron County.
- What is the median household income in 78578?
- The median household income in 78578 is $52,041.
- Which ZIP codes are near 78578?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 78578.