Legal research for Iowa law firms - Des Moines, Cedar Rapids and Davenport
By LegiMatch Research Team · Published October 16, 2026 · 2 min read
Short answer: know three things before researching Iowa law: most appeals go to the Iowa Court of Appeals, under the Iowa Supreme Court; federal appeals go to the Eighth Circuit; and the negligence rule is modified comparative fault (51% bar).
Iowa's courts
| Court | Role |
|---|---|
| Iowa Supreme Court | Highest court; binds every Iowa court |
| Iowa Court of Appeals | Cases transferred to it by the Supreme Court |
| Trial courts | District courts |
Things that trip people up
All appeals go to the Iowa Supreme Court, which keeps some and transfers others to the Court of Appeals. Under Iowa Rule of Appellate Procedure 6.904, unpublished opinions may be cited but aren't controlling legal authority.
Comparative or contributory fault
Iowa applies modified comparative fault (51% bar): a plaintiff recovers, reduced by their share of fault, as long as their fault isn't greater than the defendants'.
Federal districts
| District | Main cities |
|---|---|
| Northern District | Cedar Rapids, Sioux City |
| Southern District | Des Moines, Davenport, Council Bluffs |
Appeals go to the Eighth Circuit in St. Louis.
Reporters and statutes
Look for Iowa decisions in N.W.2d, and for statutes in the Iowa Code (legis.iowa.gov). Amendments matter, so read the text that applied when the facts happened.
Putting it together
- Facts to search: "A Des Moines delivery driver was injured when a customer's porch step collapsed; the homeowner says the driver ignored a sign to use the side door."
- Where to look: Iowa appellate decisions, plus the Eighth Circuit for federal cases.
- Law to read: Iowa Code chapter 668 on comparative fault.
If you'd rather start from facts than keywords, LegiMatch returns up to 100 similar decisions for each matter, explains each match, and links every result to the court's text. Use it as research support, not legal advice.
More states: courts in every major US city.
Frequently asked questions
Can I cite an unpublished Iowa Court of Appeals opinion?
Yes, but it isn't controlling legal authority under Iowa Rule of Appellate Procedure 6.904.
What negligence rule does Iowa use?
Modified comparative fault under Iowa Code chapter 668: a plaintiff recovers if their fault isn't greater than the defendants' combined fault, with damages reduced.
Which federal circuit covers Iowa?
The Eighth Circuit, which sits in St. Louis.
Sources
- Iowa court system and legislature websites
- United States Courts, court locator (uscourts.gov)
This article is general information about legal research, not legal advice. Verify every authority before relying on it.
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