Port Isabel, TX 78578 - Home Prices, Rental Trends, Listings & Demographics | Prop:Metrics

Port Isabel, TX—78578

Real Estate Data & Market Trends

Key Metrics at a Glance

Median Home Value

$255,000

2.9% YoY Growth

Household Income

$52,000

53.1% YoY Growth

Days on Market

6.0% Longer YoY

Home Price Forecast

2.9%

Median Rent

$2,000

8.4% YoY Growth

1-Bed Rent

$1,350

3.5% YoY Growth

2-Bed Rent

$1,950

10.1% YoY Growth

3-Bed Rent

$2,500

10.1% YoY Growth

Home Price Trends — Port Isabel, TX

As of Nov '25, the median home price in Port Isabel, TX is $255,000, with a year-over-year change of -2.9%. This indicates that home prices in Port Isabel, TX are decreasing. According to Zillow, the 1-year price projection is 2.9%, suggesting an increase housing market in the next year.

Cost per Home Type

Home Type	Median Home Value	YoY % Change
All Homes	$255,000	-2.9%
Single Family	$271,000	-2.9%
Condos	$208,000	-4.6%

Cost per Home Size

Home Size	Median Home Value	YoY % Change
1 Bed

Rental Trends — Port Isabel, TX

As of July '25, Rentcast reports the average rent in Port Isabel, TX is $2,330, with a year-over-year rent change of 8.4%. Per bedroom, the median rent as of July '25 in Port Isabel, TX is studios: $1,000, 1-bedrooms: $1,490, 2-bedrooms: $2,070, 3-bedrooms: $2,500, 4-bedrooms: $4,680. The most common rental property sizes in Port Isabel, TX are 2-bedroom and 3-bedroom, accounting for 67.3% and 16.5% of the rental stock.

Type	Median Rent	Average Rent
Average Rent	$2,000	$2,330
Studio Rent	$1,000	$1,000
1 Bed Rent	$1,350	$1,490
2 Bed Rent	$1,950	$2,070
3 Bed Rent	$2,500	$2,500
4 Bed Rent	$2,800	$4,680

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% of Rental Stock

Studio

5.4%

1 Bedroom

10.7%

2 Bedrooms

67.3%

3 Bedrooms

16.5%

Property Listings — Port Isabel, TX

As of Nov '25, Realtor.com reports that the median days on market for a home in Port Isabel, TX is 78. This is a increase of 6.0% from last year, suggesting that homes are sitting on the market longer than last year. The percentage of listed homes with a reduced price is 12.0%, representing a small inventory and little supply pressure on home prices.

Metric	Zip Code Average	Year over Year % Change
Median Listing Price	$332,000	8.0%
Listing Count	196	4.0%
Listings as % of Homes	1.9%	4.0%
Days on Market	78	6.0%

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Demographics — Port Isabel, TX

As of the latest ACS Survey released in 2023, Port Isabel, TX has a population of 10,200, which has decreased by -12.4% over the past 5 years. Port Isabel, TX is a moderately popular place for families, as children make up 20.0% of the population. The area has a poorly educated workforce, with 24.5% of adult residents holding a bachelor’s degree or higher. There are few residents working remotely, with 7.7% reporting working from home.

Metric	Latest Census	YoY % Change
Population	10,200	-12.4%
% Under 18	20.0%	-17.7%
% Seniors	26.8%	28.8%
% WFH	7.7%	541.7%
% w/ College Degree	24.5%	40.8%

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As of the latest ACS Survey released in 2023, Port Isabel, TX is a predominantly hispanic area, with 63.1% of the population identifying as hispanic. The hispanic population has shrunk by 9.5% in the last 5 years. The second most common race or ethnicity in Port Isabel, TX is white, making up 34.9% of the population. Foreign-born residents account for 17.9% of the population in Port Isabel, TX, and this percentage has decreased by 32.5% as of the ACS Survey 5 years prior, suggesting fewer immigrants are calling the area home.

Race and Ethnicity

Metric	Latest Census	5-Year % Change
% White	34.9%	26.4%
% Black	0.0%	-100.0%
% Hispanic	63.1%	-9.5%
% Asian	0.3%	-57.1%
% Foreign Born	17.9%	-32.5%

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Mortgage and Risk — Port Isabel, TX

According to HUD data as of 2023, there were 156 mortgage originations in Port Isabel, TX, of which 81.0% of loans were conventional mortgages. The average loan-to-value was 72.0%, with 28.0% above 90% LTV (very high). This implies large mortgage risk in Port Isabel, TX. Investor activity is low, as 4.0% of loans were by investors. 8.0% of loans were cash-out refinances, suggesting few homeowners are tapping equity.

Mortgages

Metric	Zip Code Average
Total Loan Originations	156
% Conventional Loans	81.0%
% Government Loans	19.0%
% Investor Loans	4.0%
% Second Loans	15.0%
% Cash Out Refinance	8.0%

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Rentals and Section 8 — Port Isabel, TX

As of 2024, the percent of homes in Port Isabel, TX under the Section 8 program is 17.4%. This is considered high, suggesting that the neighborhood is heavily composed of Section 8 homes. Section 8 opportunity is good when HUD pays more than market rent. In Port Isabel, TX, none of the tracked home sizes currently have HUD payment amounts above market rent, suggesting limited Section 8 opportunity.

Section 8 Market Size

Total Units under HUD	253
Total Units Section 8	173
% Rentals under Section 8	17.4%
% Occupied Section 8	86.6%

Section 8 Opportunity

Home Size	HUD Premium	Market Rent	Max HUD Rent
1 Bedroom	-$610	$1,350	$740
2 Bedroom	-$1,020	$1,950	$930
3 Bedroom	-$1,260	$2,500	$1,240
4 Bedroom	-$1,510	$2,800	$1,290

Port Isabel, TX—78578

Key Metrics at a Glance

Home Price Trends — Port Isabel, TX

Cost per Home Type

Cost per Home Size

% of Housing Stock

Rental Trends — Port Isabel, TX

% of Rental Stock

Property Listings — Port Isabel, TX

Demographics — Port Isabel, TX

Race and Ethnicity

Mortgage and Risk — Port Isabel, TX

Mortgages

Rentals and Section 8 — Port Isabel, TX

Section 8 Market Size

Section 8 Opportunity

Affordability — Port Isabel, TX

Home Price to Income Ratio

Port Isabel, TX — ZIP Code Boundary Map

Nearby ZIP Codes

Brownsville, TX

Los Fresnos, TX

Brownsville, TX

East Cameron, TX

Rancho Viejo, TX

Frequently Asked Questions

Metric	Zip Code Average
Home Price to Income Ratio	4.7
Median Home Price	$255,000
Median Household Income	$52,000

Port Isabel, TX—78578

Key Metrics at a Glance

Home Price Trends — Port Isabel, TX

Cost per Home Type

Cost per Home Size

% of Housing Stock

Rental Trends — Port Isabel, TX

% of Rental Stock

Property Listings — Port Isabel, TX

Demographics — Port Isabel, TX

Race and Ethnicity

Mortgage and Risk — Port Isabel, TX

Mortgages

Rentals and Section 8 — Port Isabel, TX

Section 8 Market Size

Section 8 Opportunity

Affordability — Port Isabel, TX

Home Price to Income Ratio

Port Isabel, TX — ZIP Code Boundary Map

Nearby ZIP Codes

Brownsville, TX

Los Fresnos, TX

Brownsville, TX

East Cameron, TX

Rancho Viejo, TX

Frequently Asked Questions

What is the average home price in Port Isabel, TX 78578?

How have home prices in Port Isabel, TX 78578 changed over the past year?

What is the home price projection for Port Isabel, TX 78578?

What are the demographics of Port Isabel, TX 78578?

How long does it take homes to sell in Port Isabel, TX 78578?

What is the average rent price in Port Isabel, TX 78578?