Nampa Highway District No.1
| Highway Districts | ||
| Nampa Highway District No.1 | nampahighway1.com | 208-467-6576 |
| Notus Parma Highway District No.2 | 208-722-5343 | |
| Golden Gate Highway District No.3 | gghd3.org | 208-482-6267 |
| Canyon Highway district No.4 | canyonhd4.org | 208-454-8135 |
| Ada County Highway District (ACHD) | achdidaho.org | 208-387-6100 |
| Idaho Transportation Department (ITD) | itd.idaho.gov | 208-334-8000 |
| Community | ||
| Community Planning Association (COMPASS) | compassidaho.org | 208-855-2558 |
| Counties | ||
| Canyon County | canyonco.org | 208-454-7300 |
| Ada County | adaweb.net | 208-287-7080 |