| Business | Phone |
| County Counsel 520 Main St # 302, Quincy 95971 | (530) 283-6240 |
| Plumas County Ag Commissioner 208 Fairground Rd, Quincy 95971 | (530) 283-6365 |
| Plumas County Animal Shelter 201 N Mill Creek Rd, Quincy 95971 | (530) 283-3673 |
| Plumas County Building Dept 520 Main St # 115, Quincy 95971 | (530) 283-6225 |
| Plumas County Fairgrounds 204 Fairground Rd, Quincy 95971 | (530) 283-6272 |
| Plumas County Farm Advisor 208 Fairground Rd, Quincy 95971 | (530) 283-6270 |
| Plumas County Fire Warden 505 Lawrence St, Quincy 95971 | (530) 283-6332 |
| Plumas County Information Tech 520 Main St # 208, Quincy 95971 | (530) 283-6263 |
| Plumas County Planning Dept 520 Main St # 121, Quincy 95971 | (530) 283-6210 |
| Plumas County Senior Svc 1446 E Main St, Quincy 95971 | (530) 283-3546 |
| Plumas County Superior Ct Clrk 520 Main St # 104, Quincy 95971 | (530) 283-6305 |
| Plumas County Alcohol & Drug 711 E Main St, Quincy 95971 | (530) 283-6316 |
| Plumas County Board-Supervisor 520 Main St # 3009, Quincy 95971 | (530) 283-6170 |
| Plumas County Engineer Dept 555 Main St, Quincy 95971 | (530) 283-6222 |
| Plumas County Literacy Program 445 Jackson St, Quincy 95971 | (530) 283-6413 |
| Plumas County Personnel 520 Main St # 207, Quincy 95971 | (530) 283-6444 |
| Plumas County Public Guardian 270 County Hospital Rd, Quincy 95971 | (530) 283-6242 |
| Plumas County Recorder 520 Main St # 102, Quincy 95971 | (530) 283-6218 |
| Plumas County Veterans' Svc 270 County Hospital Rd # 104, Quincy 95971 | (530) 283-6275 |
| Plumas Juvenile Retention 44 Abernathy Ln, Quincy 95971 | (530) 283-6304 |
| Plumas Senior Nutrition 274 Lawrence St, Quincy 95971 | (530) 283-0643 |