| Iowa leader | 11 |
| Iowa kin | 8 |
| Iowa Indians | 12 |
| Iowa Indian | 11 |
| Iowa hrs. | 9 |
| Iowa hours | 10 |
| Iowa home of the Cyclones | 25 |
| Iowa harvest unit | 17 |
| Iowa group | 10 |
| Iowa governor Culver | 20 |
| Iowa farmer's get-up? | 25 |
| Iowa farm item | 14 |
| Iowa crop | 9 |
| Iowa county named for an Indian tribe | 37 |
| Iowa cooperative | 16 |
| Iowa community | 14 |
| Iowa commune | 12 |
| Iowa college town | 17 |
| Iowa college since 1851 | 23 |
| Iowa college founded in 1851 | 28 |
| Iowa college football team? | 27 |
| Iowa college city | 17 |
| Iowa college | 12 |
| Iowa coal center | 16 |
| Iowa city, once called College Farm | 35 |
| Iowa city with a GOP straw poll | 31 |
| Iowa city where Grant Wood's "American Gothic" house is located | 77 |
| Iowa City squad | 15 |
| Iowa city or county seat: Abbr. | 31 |
| Iowa city on the Skunk River | 28 |
| Iowa city on I-35 | 17 |
| Iowa city near Oskaloosa | 24 |
| Iowa city named for a Sauk chief | 32 |
| Iowa city | 9 |
| Iowa church society | 19 |
| Iowa chief | 10 |
| Iowa Catholic college | 21 |
| Iowa capital | 12 |
| Iowa campus town | 16 |
| Iowa campus site | 16 |
| Iowa campus | 11 |
| Iowa and Missouri | 17 |
| Iowa and Indiana are in it | 26 |
| Iowa | 4 |
| IOUs | 4 |
| IOU? | 4 |
| IOU, e.g. | 9 |
| IOU's | 9 |
| IOU writer | 10 |
| IOU verb | 8 |
| IOU subject | 11 |
| IOU slips | 9 |
| IOU signer | 10 |
| IOU of sorts | 12 |
| IOU for twenty-five cents? | 26 |
| IOU component | 13 |
| IOU for example | 16 |
| IOU | 3 |
| Iotas | 5 |
| Iota's predecessor | 22 |
| Iota's position | 19 |
| Iota preceder | 13 |
| Iota follower | 13 |
| Iota antecedent | 15 |
| Iota alphabet-wise | 19 |
| Iota | 4 |
| Iosif V. Dzhugashvili | 21 |
| Iosif Dzhugashvili | 18 |
| iOS part: Abbr. | 15 |
| Ios is in it | 12 |
| iOS assistant | 13 |
| Ios and Naxos are in them | 25 |
| Ionosphere phenomenon | 21 |
| Ionosphere layer | 16 |
| Ionosphere area | 15 |
| Ionized gas | 11 |
| Ionium, e.g. | 12 |
| Ionienne, e.g. | 14 |
| Ionic-style grooves | 19 |
| Ionic compound used as a preservative in wine | 45 |
| Ionic compound | 14 |
| Ionian ___ | 10 |
| Ionian vowel | 12 |
| Ionian Sea vacation isle | 24 |
| Ionian Sea island | 17 |
| Ionian Sea inlet | 16 |
| Ionian Sea gulf | 15 |
| Ionian Sea country | 18 |
| Ionian isle | 11 |
| Ionian Islands H | 16 |
| Ionian island off the coast of Albania | 38 |
| Ionian island | 13 |
| Ionian gulf | 11 |
| Ionian festival honoring Apollo | 31 |
| Ionia's I's | 19 |
| Ionesco's "The Bald Soprano," e.g. | 48 |
| Ionesco work | 12 |
| Ionesco products | 16 |
| Ionesco product | 15 |
| Ionesco play featuring the Professor and the Pupil, with “The” | 70 |