Port Isabel Real EstatePort Isabel is located in Texas. Port Isabel, Texas has a population of 5,049. Port Isabel is less family-centric than the surrounding county with 22.92% of the households containing married families with children. The county average for households married with children is 36.55%. The median household income in Port Isabel, Texas is $34,389. The median household income for the surrounding county is $36,095 compared to the national median of $57,652. The median age of people living in Port Isabel is 37.8 years. Port Isabel WeatherThe average high temperature in July is 90.1 degrees, with an average low temperature in January of 51.9 degrees. The average rainfall is approximately 26.1 inches per year, with 0.1 inches of snow per year. Port Isabel MapReal estate near Port IsabelNearby CitiesNearby Cities Homes for Sale |