Iron - Jone
- Iron City
- Iron City, GA
- Iron City, TN
- Iron Gate
- Iron Gate, VA
- Iron Horse
- Iron Horse, CA
- Iron Junction
- Iron Junction, MN
- Iron Mountain
- Iron Mountain Lake
- Iron Mountain Lake, MO
- Iron Mountain, MI
- Iron Post
- Iron Post, OK
- Iron Ridge
- Iron Ridge, WI
- Iron River
- Iron River, MI
- Irondale
- Irondale, AL
- Irondale, GA
- Irondale, MO
- Irondale, OH
- Irondequoit
- Irondequoit, NY
- Ironton
- Ironton, MN
- Ironton, MO
- Ironton, OH
- Ironton, WI
- Ironwood
- Ironwood, MI
- Iroquois
- Iroquois Point
- Iroquois Point, HI
- Iroquois, IL
- Iroquois, SD
- Irrigon
- Irrigon, OR
