Rent in 78578 (Port Isabel, TX)
In ZIP 78578 (Port Isabel, TX), a 2-bedroom typically rents for $818–$1,042 a month, 21% below the Cameron County Fair Market Rent of $1,042. Other sizes: studio $827, 1 bed $884, 3 beds $1,393, 4 beds $1,496. Owner-occupied homes in Cameron County pay about 1.50% of their value a year in property tax, and the 30-year fixed mortgage rate averaged 7.32% in the week of Oct 22, 2026.
Rent by bedrooms
| Size | Range | Best guess | County FMR |
|---|---|---|---|
| Studio | $827 | $827 | $827used above |
| 1 bed | $884 | $884 | $884used above |
| 2 beds | $818–$1,042 | $818 | $1,04221% below |
| 3 beds | $1,393 | $1,393 | $1,393used above |
| 4 beds | $1,496 | $1,496 | $1,496used above |
- Studio: HUD Fair Market Rent (county) $827 (Oct 1, 2026)
- 1 bed: HUD Fair Market Rent (county) $884 (Oct 1, 2026)
- 2 beds: Census ACS 5-year median gross rent $818 ±$102 (Dec 31, 2024); HUD Fair Market Rent (county) $1,042 (Oct 1, 2026)
- 3 beds: HUD Fair Market Rent (county) $1,393 (Oct 1, 2026)
- 4 beds: HUD Fair Market Rent (county) $1,496 (Oct 1, 2026)
Gross rent (rent plus tenant-paid utilities). Sources: Census ACS 5-year median gross rent (Dec 31, 2024) and HUD county Fair Market Rents (Oct 1, 2026).
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Frequently asked questions
- What is the rent for a 2-bedroom in 78578?
- Typically $818–$1,042 a month, with a best guess of $818. That is 21% below the Cameron County Fair Market Rent ($1,042).
- What is the rent for a 1-bedroom in 78578?
- $884 a month, the HUD Fair Market Rent for Cameron County; there is no ZIP-level figure for 78578.
- What is the rent for a 3-bedroom in 78578?
- $1,393 a month, the HUD Fair Market Rent for Cameron County; there is no ZIP-level figure for 78578.
- What is the rent for a studio in 78578?
- $827 a month, the HUD Fair Market Rent for Cameron County; there is no ZIP-level figure for 78578.
- What is the rent for a 4-bedroom in 78578?
- $1,496 a month, the HUD Fair Market Rent for Cameron County; there is no ZIP-level figure for 78578.
- What is the property tax rate in ZIP 78578?
- Owner-occupied homes in Cameron County pay a typical 1.50% of their value a year (Census ACS, median taxes paid ÷ median home value, Dec 31, 2024). Investors often pay more after a purchase: the home is reassessed at the sale price and there is no homestead exemption.
- What is the current 30-year mortgage rate?
- The 30-year fixed rate averaged 7.32% in the week of Oct 22, 2026 (Freddie Mac PMMS via FRED). It's a national average for owner-occupied loans; investment property loans usually cost more.
- Where do the 78578 rent figures come from?
- Census ACS 5-year median gross rent (Dec 31, 2024) and HUD county Fair Market Rents (Oct 1, 2026).