06820 is zip code located in Darien, Connecticut. The population is 20,758, making 06820 the largest zipcode in Darien.
There are 7 public schools in 06820 with an average Homefacts rating of A+. The total crime rate for Darien is low , and there are 1 registered sex offenders residing in the zip code 06820. Unemployment in 06820 is moderate.