| Item | Obligations |
|---|---|
| Department of Defense | $915M |
| Department of the Treasury | $175M |
| Department of Agriculture | $105M |
| Department of Veterans Affairs | $58.5M |
| Department of Energy | $38.4M |
| General Services Administration | $29.3M |
| Department of Transportation | $19.5M |
| Department of Labor | $17.2M |
| Department of Justice | $12.1M |
| Department of Health and Human Services | $12M |
Department of Defense was the top federal buyer in Iowa, obligating $915M (64.5% of the state total).