10 Postal Codes in San Marino

The average area for zip codes in San Marino is 6.2 km² with the largest being 47893 in Castello di Borgo Maggiore at 9.8 km² and the smallest being 47898 in Cerbaiola, Castello di Montegiardino at 3.36 km². In San Marino the average population for a postal code is 3,151 with the most populated being zip code 47893 in Castello di Borgo Maggiore at 6,583. The average population density for a postal code in San Marino is 528.0 / km² with the densest being zip code 47891 in Serravalle, Serravalle at 1,303 / km². The median age for postal codes in San Marino range from 43.4 years old for 47891 in Serravalle, Serravalle to 43.5 years old for 47890 in Santa Mustiola. The fastest growing postal code is 47892 in Gualdicciolo, Castello di Acquaviva with population growth of 33.6% from 2000 to 2015, an average of 1.9% per year.