| Business | Phone |
| Delaware Cnty Auditor Office 301 E Main St 210, Manchester 52057 | (563) 927-4701 |
| Delaware County Assessor Ofc 301 E Main St 101, Manchester 52057 | (563) 927-2526 |
| Delaware County Treasurer Ofc 301 E Main St 200, Manchester 52057 | (563) 927-2845 |