Founded in 1793, Norfolk County is one of 14 counties in the state of Massachusetts. Historically, Norfolk County was formed from part of Suffolk County. The city of Dedham is the county seat. With FIPS code of 21, Norfolk County has a population of 724,505 and area of 400 square miles (1,036 km2).
List of all cities in Norfolk County, MA alphabetically
| City/Town | Postal Code | Area Code |
| Avon, MA | 02322 | 508/774 |
| Babson Park, MA | 02457 | 781/339 |
| Bellingham, MA | 02019 | 508/774 |
| Braintree, MA | 02184 | 781/339 |
| 02185 | 781/339 | |
| Braintree Highlands, MA | 02184 | 781/339 |
| Braintree Phantom, MA | 02185 | 781/339 |
| Brookline, MA | 02445 | 617/857 |
| 02446 | 617/857 | |
| 02447 | 617/857 | |
| Brookline Village, MA | 02447 | 617/857 |
| Canton, MA | 02021 | 781/339 |
| Cohasset, MA | 02025 | 781/339 |
| Dedham, MA | 02026 | 781/339 |
| 02027 | 781/339 | |
| Dover, MA | 02030 | 508/774 |
| East Braintree, MA | 02184 | 781/339 |
| East Milton, MA | 02186 | 617/857 |
| East Walpole, MA | 02032 | 508/774 |
| East Weymouth, MA | 02189 | 781/339 |
| Foxboro, MA | 02035 | 508/774 |
| Franklin, MA | 02038 | 508/774 |
| Holbrook, MA | 02343 | 781/339 |
| Houghs Neck, MA | 02169 | 617/857 |
| Islington, MA | 02090 | 781/339 |
| Marina Bay, MA | 02171 | 617/857 |
| Medfield, MA | 02052 | 508/774 |
| Medway, MA | 02053 | 508/774 |
| Millis, MA | 02054 | 508/774 |
| Milton, MA | 02186 | 617/857 |
| Milton Village, MA | 02187 | 617/857 |
| Needham, MA | 02492 | 781/339 |
| 02494 | 617/857 | |
| Needham Heights, MA | 02494 | 617/857 |
| Needham Jct, MA | 02492 | 781/339 |
| No Quincy, MA | 02171 | 617/857 |
| Norfolk, MA | 02056 | 508/774 |
| Norfolk Downs, MA | 02171 | 617/857 |
| North Attleboro, MA | 02762 | 508/774 |
| North Quincy, MA | 02171 | 617/857 |
| North Weymouth, MA | 02191 | 781/339 |
| Norwood, MA | 02062 | 781/339 |
| Plainville, MA | 02762 | 508/774 |
| Quincy, MA | 02169 | 617/857 |
| 02170 | 617/857 | |
| 02171 | 617/857 | |
| 02269 | 781/339 | |
| Quincy Center, MA | 02169 | 617/857 |
| Randolph, MA | 02368 | 781/339 |
| Sharon, MA | 02067 | 781/339 |
| Sheldonville, MA | 02070 | 508/774 |
| South Quincy, MA | 02169 | 617/857 |
| South Walpole, MA | 02071 | 508/774 |
| South Weymouth, MA | 02190 | 781/339 |
| Squantum, MA | 02171 | 617/857 |
| Stoughton, MA | 02072 | 781/339 |
| Walpole, MA | 02032 | 508/774 |
| 02071 | 508/774 | |
| 02081 | 508/774 | |
| Wellesley, MA | 02457 | 781/339 |
| 02481 | 781/339 | |
| 02482 | 781/339 | |
| Wellesley Hills, MA | 02481 | 781/339 |
| West Quincy, MA | 02169 | 617/857 |
| Westwood, MA | 02090 | 781/339 |
| Weymouth, MA | 02188 | 781/339 |
| 02189 | 781/339 | |
| 02190 | 781/339 | |
| 02191 | 781/339 | |
| Weymouth Lndg, MA | 02188 | 781/339 |
| Weymouth NAS, MA | 02190 | 781/339 |
| Wollaston, MA | 02170 | 617/857 |
| Wrentham, MA | 02070 | 508/774 |
| 02093 | 508/774 |