| Business | Phone |
| Code Enforcement Office 226 S 5th St, Klamath Falls 97601 | (541) 883-5360 |
| Klamath Falls Accounts Payable 500 Klamath Ave, Klamath Falls 97601 | (541) 883-5308 |
| Klamath Falls Assessments 500 Klamath Ave, Klamath Falls 97601 | (541) 883-5357 |
| Klamath Falls City Office 500 Klamath Ave, Klamath Falls 97601 | (541) 883-5320 |
| Klamath Falls Code Enforcement 226 S 5th St, Klamath Falls 97601 | (541) 883-5358 |
| Klamath Falls Finance Director 500 Klamath Ave, Klamath Falls 97601 | (541) 883-5316 |
| Klamath Falls Human Resources 500 Klamath Ave, Klamath Falls 97601 | (541) 883-5317 |
| Klamath Falls Planning 226 S 5th St, Klamath Falls 97601 | (541) 883-5361 |
| Klamath Falls Sewage Treatment 1200 S Spring St, Klamath Falls 97601 | (541) 883-5384 |