| Business | Phone |
| Canv Tobacco Control Program 2010 Jefferson St # A, Napa 94559 | (707) 255-1685 |
| Napa Agricultural Commissioner 1710 Soscol Ave # 3, Napa 94559 | (707) 253-4357 |
| Napa Cnty Central Collections 1195 3rd St # 108, Napa 94559 | (707) 259-8121 |
| Napa County Administrator 1195 3rd St # 310, Napa 94559 | (707) 253-4421 |
| Napa County Adult Care Svc 2344 Old Sonoma Rd, Napa 94559 | (707) 253-4785 |
| Napa County Animal Shelter 942 W Imola Ave, Napa 94559 | (707) 253-4381 |
| Napa County Correction Dept 1125 3rd St, Napa 94559 | (707) 253-4401 |
| Napa County Counsel 1195 3rd St # 301, Napa 94559 | (707) 253-4521 |
| Napa County Drinking Driver 900 Coombs St # M16, Napa 94559 | (707) 253-4264 |
| Napa County Drug & Alcohol 2344 Old Sonoma Rd, Napa 94559 | (707) 253-4412 |
| Napa County Elections Dept 900 Coombs St # 256, Napa 94559 | (707) 253-4321 |
| Napa County Hazardous Material 1195 3rd St # 101, Napa 94559 | (707) 253-4471 |
| Napa County Information Tech 650 Imperial Way # 201, Napa 94559 | (707) 253-4089 |
| Napa County Job Connection 650 Imperial Way # 101, Napa 94559 | (707) 251-5627 |
| Napa County Personnel Dept 1195 3rd St # 110, Napa 94559 | (707) 253-4303 |
| Napa County Psychiatric Svc 2344 Old Sonoma Rd, Napa 94559 | (707) 253-4727 |
| Napa County Resource 1303 Jefferson St # 500b, Napa 94559 | (707) 252-4188 |
| Napa County Training & Emplymt 650 Imperial Way # 101, Napa 94559 | (707) 253-4291 |
| Napa County Veterans Svc 900 Coombs St # 257, Napa 94559 | (707) 253-4558 |
| Napa County Weights & Measure 7292 Silverado Trl, Napa 94558 | (707) 944-8714 |
| University Of California-Coop 1710 Soscol Ave # 4, Napa 94559 | (707) 253-4221 |
| County Coroner 1125 3rd St, Napa 94559 | (707) 253-4256 |
| Napa County Adult Counseling 2344 Old Sonoma Rd, Napa 94559 | (707) 253-4721 |
| Napa County Communication Dept 1220 4th St, Napa 94559 | (707) 253-4681 |
| Napa County Community House 1917 1st St, Napa 94559 | (707) 253-4742 |
| Napa County Consumer Affairs 931 Parkway Mall, Napa 94559 | (707) 253-4059 |
| Napa County Correction Dept 1555 Airport Blvd, Napa 94558 | (707) 253-4401 |
| Napa County Courts General 1111 3rd St, Napa 94559 | (707) 299-1100 |
| Napa County Courts General 825 Brown St, Napa 94559 | (707) 299-1100 |
| Napa County Ems Agency 1721 1st St, Napa 94559 | (707) 253-4341 |
| Napa County Jury Information 1111 3rd St, Napa 94559 | (707) 299-1150 |
| Napa County Jury Information 825 Brown St, Napa 94559 | (707) 299-1150 |
| Napa County Local Agency Comm 1804 Soscol Ave # 205a, Napa 94559 | (707) 259-8645 |
| Napa County Next Step Day Prg 2344 Old Sonoma Rd, Napa 94559 | (707) 253-4728 |
| Napa County Planning Dept 1195 3rd St, Napa 94559 | (707) 253-4416 |
| Napa County Public Adm 900 Coombs St # 257, Napa 94559 | (707) 253-4049 |
| Napa County Purchasing Dept 1195 3rd St # 310, Napa 94559 | (707) 253-4476 |