Post Office
- Papaaloa Post Office 35-2032 Old Mamalahoa Hwy Papaaloa, HI
- Hakalau Post Office 29-2270 Old Mamalahoa Hwy Hakalau, HI
- Laupahoehoe Post Office 36-2281 Mamalahoa Hwy Laupahoehoe, HI
- Honomu Post Office 28-171 Honomu Rd Honomu, HI
- Pepeekeo Post Office 28-2825 Mamalahoa Hwy Pepeekeo, HI