SID #5 has a Plattsmouth mailing address however we are not located within the City of Plattsmouth. Some businesses and services charge residents sales tax for the City of Plattsmouth however we are not legally required to pay that sales tax.
| Entity | Link |
| City of Plattsmouth | http://www.plattsmouth.org/ |
| Plattsmouth Chamber of Commerce | http://www.plattsmouthchamber.com/ |
| Cass County | http://www.cassne.org/ |
| State of Nebraska | https://www.nebraska.gov/ |