- Irons can be found in Point Lookout. There are three irons in a metal box inside a trailer.
- Two irons can be found inside a metal box while exploring the Living Quarters of Vault 92.
- There is an iron upstairs in the Gillian house in Minefield.
- One unit can also be found in Lucy West's house in a metal box.
- One is found in Old Olney underground, in the room of the first deathclaw encounter.
- 5 irons can be stolen from Karl's store in the Meresti Metro station.
- 1 iron can be found in Vault 108.
- 1 iron can be found in the Regulator HQ.
- 1 iron can be found in Wilks' house in Grayditch.
- 2 irons can be found in a storage room on a metal shelf in the A ring of the Citadel.