Easton is an incorporated town in and the county seat of Talbot County, Maryland, United States. The population was 17,101 at the 2020 census, with an estimated population of 17,342 in 2022. The primary ZIP Code is 21601, and the secondary is 21606. The primary phone exchange is 822, the auxiliary exchanges are 820, 763, and 770, and the area code is …Easton is an incorporated town in and the county seat of Talbot County, Maryland, United States. The population was 17,101 at the 2020 census, with an estimated population of 17,342 in 2022. The primary ZIP Code is 21601, and the secondary is 21606. The primary phone exchange is 822, the auxiliary exchanges are 820, 763, and 770, and the area code is 410.