Iowa splits along the glacial line the way Indiana does. The northern counties hold natural lakes left by the ice sheet, while the rest of the state relies on impoundments built across farmland for supply and recreation, and statewide the two are close to balanced. Elevation is low and narrow, from 158 metres
| Issuing agency | Who needs a license | Resident annual | Non-resident annual | Non-resident short-term | Saltwater requirement | License-free days | Official source (last verified) |
|---|---|---|---|---|---|---|---|
| Iowa Department of Natural Resources (Iowa DNR) | Ages 16 and older | $22.00 | $48.00 | 1-day, 3-day, 7-day | Not applicable — no coastline | 3 days (June) | Agency pageVerified 2026-08-13 |
*Prices are base annual freshwater licenses and exclude vendor fees, stamps and endorsements. Where a cell reads “Not verified”, the agency does not publish the figure in a format we can verify automatically.
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