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Iowa DUI / DWI Limits (2026)
Info: In Iowa the OWI limit for drivers 21 and older is 0.08% blood alcohol (Iowa Code 321J.2), and the limit for drivers under 21 is 0.02%.
InfoVerified May 31, 2026
Alcohol laws change at the state line.Track them in the free LawLert iPhone app and get an alert when you cross into a state where they differ. No account.Get the appIn Iowa the OWI limit for drivers 21 and older is 0.08% blood alcohol (Iowa Code 321J.2), and the limit for drivers under 21 is 0.02%.
Official source: legis.iowa.gov →
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