Cities: Skylines II · Communications
Post Sorting Facility
The communications branch unlocks a post office and mailboxes, which the guide associates with increased citizen happiness.
How it works
Shacknews reports that the communications branch unlocks at rank five and identifies the Post Sorting Facility among its early development upgrades. The guide recommends adding a post office and mailboxes; it says the post office should be centrally located and that mailboxes can be placed at the ends of residential streets. It reports a sizeable citizen happiness increase and low mailbox upkeep, but does not provide numeric effects or node costs.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.