: The final three digits "980" typically represent the specific local post office or delivery point. Comparison with Other Systems
: Uses a six-digit PIN (Postal Index Number), which has a similar format to the Russian system but different regional assignments.
: Uses five-digit "ZIP" codes (like 15698) or nine-digit "ZIP+4" formats.
In Russia, postal codes (or pochtovyy indeks ) are strictly six digits long and are used nationwide to facilitate mail sorting and delivery. While specific five-digit ZIP codes like exist in the United States (e.g., Yukon, Pennsylvania ), the full six-digit string identifies a more specific location within the Russian postal network. Location Details: Kostroma Oblast