Comment by TomK32

8,200 in Germany is way too low, and I'll add some fun facts. According to Wikipedia 30,000 of the theoretical 98,901 are currently in use. The number of people per postcode does vary a lot, from zero (no one lives in a company that has its own postcode) to none living in a demolished village of Billmuthausen (right on the inner-German border) or the two people living in a district that had no postcode until the problem was fixed in 2015. Yes, they forgot Gutsbezirk Reinhardswald (a quarter the size of Frankfurt/Main) which is almost all forest but has a forester hut with two people. There are even four Austrian villages that also have a German postcode in addition to their Austrian one, and a swiss one. There are even still four-digit postcodes with no five-digit update in use: Feldpost, the Germna army postal service.