Cities near Iwai
- Bando (~1 km)
- Joso (~10 km)
- Noda (~12 km)
- Sugito (~14 km)
- Moriya (~14 km)
- Satte (~15 km)
- Kasukabe (~15 km)
- Miyashiro (~15 km)
- Shimotsuma (~16 km)
- Matsubushi (~16 km)
- Tsukubamirai (~17 km)
- Tsukuba (~17 km)
- Koga (~18 km)
- Yoshikawa (~18 km)
- Shiraoka (~19 km)
- Kuki (~20 km)