Home values, rents and more in ZIP code 78578 (Port Isabel, TX)
September 2026 figures from Zillow and the U.S. Census Bureau · updated 2026-11-07
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- $180k–$210k
- $210k–$230k
- $230k–$270k
- $270k+
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How 78578 compares
The typical home in ZIP code 78578 (Port Isabel, TX) is worth about $263,000, according to the Zillow Home Value Index for September 2026. Home values in 78578 are 29% above the typical value in the Brownsville metro area ($205,000) and 28% below the U.S. typical value ($366,000).
Over the past year, home values in 78578 rose 2.6%, compared with +1.3% in the Brownsville metro area and +1.2% nationally.
Typical rent is $1,993 a month (Zillow Observed Rent Index), 32% above the Brownsville metro area ($1,509) and 3% above the U.S. ($1,932).
The median household income is $51,880, against $52,601 in the Brownsville metro area and $80,734 in the U.S. (Census Bureau, American Community Survey 2020–24).
About 10,016 people live in 78578 (American Community Survey 2020–24).
78578 has the 3rd-highest typical home value of the 13 ZIP codes in the Brownsville metro area and the 725th-highest of 1,512 in Texas with Zillow figures.
Part of: Port Isabel, TX · Cameron County, TX · Brownsville metro area · Texas
More for 78578 in ProMap Plus
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- 5- and 10-year price changes
- Days on market and months of supply
- Price cuts and sale-to-list ratio
- Price-to-income and monthly cost to buy
- Zillow 12-month price forecast
- Crime rates
- School test scores
- Homeowners insurance premiums
- Commute time to downtown
- Flood, wildfire and natural hazard risk
- Property-tax rate
- 2024 presidential vote
- Age, education and household make-up
- Amenities and transit nearby
Nearby ZIP codes
Sources
Home values: Zillow Home Value Index (ZHVI), all homes, middle tier, smoothed and seasonally adjusted, September 2026. Rents: Zillow Observed Rent Index (ZORI), seasonally adjusted. Population: Census population estimates (July 2025) for states, metros and counties; ACS 2020–24 for cities and ZIP codes. Income: U.S. Census Bureau, ACS 2020–24 5-year estimates. Boundaries: U.S. Census Bureau cartographic boundary files. Compiled by Home Economics.
"Typical" is Zillow's middle-tier value (homes between the 35th and 65th percentiles), not a median sale price. Changes are over the 12 months to September 2026.