Taxes in Mandan
Mandan's tax picture runs modestly above North Dakota's own statewide averages on both property and sales tax, alongside the state's genuinely low income tax structure.
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Learn moreA modestly elevated property tax rate, with a declining mill levy
Ownwell cited Mandan's effective property tax rate at approximately 1.26%, modestly above the ~1.20% ND statewide median and ~1.02% national median -- even as Mandan's own consolidated mill levy has been declining (281 mills in 2023 to 264 in 2025).
A combined 8.25% sales tax rate
Mandan's combined sales tax rate runs 8.25% (5% state + 1% Morton County + 2.25% Mandan city) -- above North Dakota's own ~6.89% statewide combined average.
North Dakota's real, lightest-in-the-nation income tax
North Dakota's 2026 income tax runs a three-bracket structure topping out at 2.50% -- the lowest of any US state that levies an income tax at all.
Key takeaways
- Mandan's effective property tax rate (~1.26%) runs modestly above ND's own statewide average.
- Mandan's combined sales tax rate (8.25%) runs above North Dakota's statewide average.
- North Dakota's real 2.50% top marginal income tax rate is the lowest of any income-tax state.
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