Cost of Living & Housing in Grand Isle
Grand Isle's cost of living centers on a genuinely volatile, low-volume housing market and Louisiana's real, statewide insurance crisis applying here at its most extreme, offset by a below-national-median property tax rate.
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Learn moreA genuinely volatile, low-volume housing market
Grand Isle's home-price figures carried a real, disclosed cross-source spread this pass: a mid-2026 median sale price of approximately $355,000 (down a real 33.6% year-over-year), a trailing-3-month (through May 2026) median of $260,000 (down 23.0% year-over-year), and a July 2026 active-listing median of $344,000 -- consistent with a small, storm-affected market where sale volume is low and prices swing sharply (base record).
A below-national-median property tax rate
No Grand Isle-specific rate distinct from Jefferson Parish's own median was found this pass -- the parish-level Ownwell figure (0.69%) runs below the 1.02% national median and sits close to Louisiana's own low statewide anchor, though Grand Isle's own small-town millage structure may differ meaningfully (base record).
Louisiana's real, severe insurance crisis applies here at its most extreme
No Grand Isle-specific homeowners-insurance premium figure was found this pass -- Louisiana's real, disclosed statewide average annual premium range ($4,644-$7,304) applies as a floor, but given Grand Isle's genuinely extreme barrier-island hurricane exposure, actual premiums and coverage availability here should be expected to run at or above the high end of that range, with some carriers declining coverage entirely (base record).
A real, well-below-median household income base
Grand Isle's median household income carried a real, disclosed cross-source spread this pass ($34,830-$43,333), well below both Louisiana's and the national median, alongside a genuinely older median age (approximately 54) than most Louisiana markets (base record).
Key takeaways
- Grand Isle's home prices ($260,000-$355,000 across sources) run genuinely volatile given its small, storm-affected market.
- Jefferson Parish's 0.69% effective property tax rate runs below the national median, though confirm Grand Isle's own specific millage.
- Louisiana's statewide insurance crisis applies here at its most extreme -- expect costs at or above the high end of the statewide range.
- Median household income ($34,830-$43,333) runs well below both Louisiana and national medians.
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