06830 - Downtown, Byram, Belle Haven, central Mid-Country
06831 - Glenville, Pemberwick, Back Country, Banksville, Stanwich, North Greenwich
06870 - Old Greenwich
06878 - Riverside, North Mianus
06807 - Cos Cob, Mianus, eastern Mid-Country
For those of you that are interested, Greenwich is broken up into 4 different neighborhoods (census-designated place) between Greenwich, Cos Cob, Riverside and Old Greenwich and covers 5 different zip codes (two for Greenwich and one for each of the three remaining).
