The Room Occupancy Tax Rate is 6% countywide, but only Wilmington contributes any of it to the convention center. The "Wilmington Convention Center District" - everything between the two bridges and from the river to 4th Street - has 100% of their room tax going to the convention center. For the rest of the City of Wilmington, 3% of the room tax collected goes to the convention center.
You can find the numbers here: http://www.nhcgov.com/Tax/Pages/RoomOccupancyTax.aspx
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