Zip code 78578: Port Isabel, Texas

Q: What city is zip code 78578?

78578 is assigned to Port Isabel, Texas. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 78578 in?

78578 is in Cameron County, Texas.

Q: What is the population of 78578?

About 10,016 people live in 78578, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 78578?

The median household income in 78578 is $51,880.

Q: What zip codes are near 78578?

The closest zip codes to 78578 are 78521, 78566, 78526, 78523, 78575.

Residential delivery areaCameron CountyCentral Time

Population

10,016

Median household income

$52K

U.S. $81K

Median home value

$196K

U.S. $333K

Median rent

$749/mo

U.S. $1,413

Median age

U.S. 38.9

Land area

57 sq mi

176 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 78578

78578 is a small-town zip code in Port Isabel, Texas (Cameron County), covering 57 sq mi of land. About 10,016 people live here, or 176 per square mile. The median resident is 49 years old, compared with 38.9 nationally.

The median household earns $51,880 a year, 36% below the national median of $80,734. 27% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $196,200, or 3.8 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 75% of occupied homes are lived in by their owners, and renters pay a median of $749 a month.

29% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 17.3 minutes each way, and 12% of workers work from home. The most common jobs among working residents are in office and administrative support; transportation and moving goods; and food service. 18% of them are self-employed (U.S.: 10%). 48% of households speak a language other than English at home, most often Spanish.

How 78578 compares

Sorted from highest to lowest national percentile

Uninsured rate32.4%
99th
WeaknessU.S. 8.4% · TX 17.1%106th of 1,808 in TX
Housing vacancy32.4%
98th
U.S. 10.1% · TX 9.4%163rd of 1,794 in TX
Income inequality (Gini)0.543
97th
WeaknessU.S. 0.483 · TX 0.47868th of 1,785 in TX
Self-employed workers18%
96th
U.S. 10% · TX 10.5%241st of 1,810 in TX
Residents 65 and older27.2%
95th
U.S. 17.2% · TX 13.4%218th of 1,818 in TX
Median age49
94th
U.S. 38.9 · TX 35.6235th of 1,817 in TX
Poverty rate27%
94th
WeaknessU.S. 12.5% · TX 13.8%165th of 1,794 in TX
Government workers20%
84th
U.S. 14.5% · TX 14.1%454th of 1,810 in TX
Foreign-born residents22.4%
78th
U.S. 14.1% · TX 17.6%276th of 1,818 in TX
Tech workers4.3%
72nd
U.S. 3.8% · TX 3.8%281st of 1,810 in TX
Homeownership rate74.6%
65th
U.S. 65.2% · TX 62.6%895th of 1,792 in TX
Rent-burdened renters52.5%
57th
U.S. 51.1% · TX 51.7%626th of 1,692 in TX
Diversity index51.1
54th
U.S. 61.4 · TX 67.1826th of 1,818 in TX
Veterans5.8%
49th
U.S. 6.2% · TX 6.2%1,000th of 1,818 in TX
Work from home12%
46th
U.S. 15.1% · TX 14.4%583rd of 1,810 in TX
Bachelor's degree or higher28.6%
43rd
U.S. 35.7% · TX 33.8%584th of 1,811 in TX
Per capita income$37,249
41st
U.S. $44,673 · TX $40,752712th of 1,813 in TX
Residents under 1820.1%
32nd
U.S. 22% · TX 25%1,311th of 1,818 in TX
Unemployment rate3.6%
26th
U.S. 5.2% · TX 5.3%1,117th of 1,810 in TX
Median home value$196,200
20th
U.S. $332,700 · TX $283,800924th of 1,679 in TX
Population density176/sq mi
19th
U.S. 95/sq mi · TX 116/sq mi809th of 1,818 in TX
Population10,016
16th
U.S. 334,922,499 · TX 30,188,424821st of 1,818 in TX
Median earnings per worker$37,633
16th
WeaknessU.S. $49,666 · TX $47,5751,286th of 1,794 in TX
Median household income$51,880
11th
WeaknessU.S. $80,734 · TX $78,4761,415th of 1,712 in TX
Healthcare workers6%
8th
U.S. 9.7% · TX 8.6%1,272nd of 1,810 in TX
Broadband access81%
6th
WeaknessU.S. 91% · TX 91.4%1,451st of 1,792 in TX
Median gross rent$749
4th
U.S. $1,413 · TX $1,4031,371st of 1,511 in TX
Average commute17.3 min
4th
StrengthU.S. 26.4 min · TX 26.7 min1,597th of 1,738 in TX

Measure	78578	Cameron	TX	U.S.	National percentile	Rank in TX
Uninsured rateWeakness	32.4%	25.8%	17.1%	8.4%	99th	106th of 1,808
Housing vacancy	32.4%	13.3%	9.4%	10.1%	98th	163rd of 1,794
Income inequality (Gini)Weakness	0.543	0.471	0.478	0.483	97th	68th of 1,785
Self-employed workers	18%	11.4%	10.5%	10%	96th	241st of 1,810
Residents 65 and older	27.2%	14.3%	13.4%	17.2%	95th	218th of 1,818
Median age	49	32.7	35.6	38.9	94th	235th of 1,817
Poverty rateWeakness	27%	24.8%	13.8%	12.5%	94th	165th of 1,794
Government workers	20%	19.1%	14.1%	14.5%	84th	454th of 1,810
Foreign-born residents	22.4%	23.2%	17.6%	14.1%	78th	276th of 1,818
Tech workers	4.3%	1.3%	3.8%	3.8%	72nd	281st of 1,810
Homeownership rate	74.6%	65.2%	62.6%	65.2%	65th	895th of 1,792
Rent-burdened renters	52.5%	49.8%	51.7%	51.1%	57th	626th of 1,692
Diversity index	51.1	19.5	67.1	61.4	54th	826th of 1,818
Veterans	5.8%	4.1%	6.2%	6.2%	49th	1,000th of 1,818
Work from home	12%	9.1%	14.4%	15.1%	46th	583rd of 1,810
Bachelor's degree or higher	28.6%	22.1%	33.8%	35.7%	43rd	584th of 1,811
Per capita income	$37,249	$24,089	$40,752	$44,673	41st	712th of 1,813
Residents under 18	20.1%	28.7%	25%	22%	32nd	1,311th of 1,818
Unemployment rate	3.6%	5.9%	5.3%	5.2%	26th	1,117th of 1,810
Median home value	$196,200	$136,500	$283,800	$332,700	20th	924th of 1,679
Population density	176/sq mi	478/sq mi	116/sq mi	95/sq mi	19th	809th of 1,818
Population	10,016	426,120	30,188,424	334,922,499	16th	821st of 1,818
Median earnings per workerWeakness	$37,633	$33,153	$47,575	$49,666	16th	1,286th of 1,794
Median household incomeWeakness	$51,880	$52,601	$78,476	$80,734	11th	1,415th of 1,712
Healthcare workers	6%	12.3%	8.6%	9.7%	8th	1,272nd of 1,810
Broadband accessWeakness	81%	84.4%	91.4%	91%	6th	1,451st of 1,792
Median gross rent	$749	$912	$1,403	$1,413	4th	1,371st of 1,511
Average commuteStrength	17.3 min	21.3 min	26.7 min	26.4 min	4th	1,597th of 1,738

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

16%

5–17

18–24

10%

25–34

35–44

12%

45–54

15%

55–64

11%

65–74

16%

75+

Median age

Under 18

20.1%

65 and over

27.2%

Race and ethnicity

White40%
Black0.0%
Hispanic57%
Asian0.5%
Native American0%
Pacific Islander0%
Other2%
Multiracial0.6%

Diversity index

51.1

U.S. 61.4

Foreign-born

22.4%

U.S. 14.1%

Born in state

47.5%

Language spoken at home (households)

English only

52%

Spanish

44%

Other Indo-European

Asian / Pacific

0.6%

Other

Households

Households: 4,379
Average household size: 2.3
Family households: 65.6%
Married couples: 49.5%
Living alone: 30.6%
Veterans (of adults): 5.8%
Male / female: 47% / 53%

Income and poverty

Household income distribution

<$25k

29%

$25–50k

19%

$50–75k

12%

$75–100k

11%

$100–150k

13%

$150–200k

$200k+

Median household income

78578

$51,880

Cameron Co.

$52,601

Texas

$78,476

United States

$80,734

Per capita income

$37,249

U.S. $44,673

Poverty rate

27%

U.S. 12.5%

Households earning $150K+

16.3%

U.S. 23%

Income inequality (Gini)

0.543

U.S. 0.483

Housing

Median home value

78578

$196,200

Cameron Co.

$136,500

Texas

$283,800

United States

$332,700

Median gross rent

78578

$749

Cameron Co.

$912

Texas

$1,403

United States

$1,413

Types of housing

Single-family

53%

2–4 units

5–19 units

20+ units

Mobile home

27%

Boat, RV, van

0.3%

Housing units: 6,480
Owner-occupied: 74.6%
Vacant: 32.4%
Median year built: 1991
Median rooms: 4.4
Renters paying 30%+ of income: 52.5%
Renters paying 50%+ of income: 17.3%
Home value to income: 3.8× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

70%

Carpooled

15%

Transit

Walked

0.4%

Bicycle

Worked from home

12%

Other

Commute time (one way)

<10 min

29%

10–19

34%

20–29

22%

30–44

45–59

60+

Average commute

17.3 min

U.S. 26.4 min

Unemployment

3.6%

U.S. 5.2%

In labor force

48.8%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Office and admin

13%

Transportation and moving

12%

Food service

11%

Cleaning and personal care

10%

Management

Sales

Construction and repair

Healthcare

Education

Computer and math

Engineering and science

Farming, fishing and forestry

Legal and social services

Business and finance

Police and fire

Production

0.5%

Arts, media and sports

0.3%

Industries

Restaurants and hotels

13%

Education

10%

Professional and technical services

Finance, insurance and real estate

Other services

Health care and social assistance

Public administration

Retail

Construction

Admin, support and management

Manufacturing

Transportation, warehousing and utilities

Agriculture and mining

Arts and recreation

Wholesale

0.3%

Information

Median earnings per worker

$37,633

U.S. $49,666

Self-employed

18%

U.S. 10%

Government workers

20%

U.S. 14.5%

Nonprofit workers

2.7%

U.S. 8.8%

Median earnings by type of work

Type of work	78578	U.S.
Management, business, science and arts	$69,335	$74,888
Service	$22,616	$26,804
Sales and office	$36,986	$40,476
Construction and maintenance	$26,274	$49,199
Production and transportation	$40,069	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

19%

High school

28%

Some college

16%

Associate's

Bachelor's

19%

Graduate

High school graduate or higher: 81.1%
Bachelor's degree or higher: 28.6%
Graduate or professional degree: 9.2%
Households with broadband: 81%
Cable, fiber or DSL: 45.9%
No internet access: 9.3%
Without health insurance: 32.4%
Limited-English households: 18.3%

Geography

City (USPS): Port Isabel
State: Texas
County: Cameron County
Center point: 26.0440° N, 97.3066° W
Land area: 57 sq mi
Water area: 22 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Brownsville32% of zip
Port Isabel12% of zip
Laguna Vista9% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 78578

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
78521	Brownsville, TX	6.9 mi	87,380	$44,509	$99,700
78566	Los Fresnos, TX	8.2 mi	25,110	$60,187	$154,300
78526	Brownsville, TX	9.6 mi	60,012	$70,565	$185,000
78523	Brownsville, TX · PO box	14 mi	—	—	—
78575	Olmito, TX	15 mi	4,575	$71,765	$249,500
78522	Brownsville, TX · PO box	15 mi	—	—	—
78597	South Padre Island, TX	16 mi	2,935	$68,421	$527,200
78520	Brownsville, TX	16 mi	64,740	$50,116	$146,000
78568	Lozano, TX · PO box	18 mi	—	—	—
78583	Rio Hondo, TX	20 mi	5,236	$51,453	$161,900
78586	San Benito, TX	22 mi	50,964	$45,575	$87,200
78553	Harlingen, TX · PO box	26 mi	—	—	—

Zip codes like 78578 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 78578

What city is zip code 78578?

78578 is assigned to Port Isabel, Texas. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 78578 in?

78578 is in Cameron County, Texas.

What is the population of 78578?

About 10,016 people live in 78578, according to the Census Bureau's American Community Survey.

What time zone is 78578 in?

78578 is in Central Time.

What is the median household income in 78578?

The median household income in 78578 is $51,880.

What zip codes are near 78578?

The closest zip codes to 78578 are 78521, 78566, 78526, 78523, 78575.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 78578, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.