Its area is 15,706 square kilometres (6,064 sq mi) and in 2024 its population was 11,085.

[1] The Eastern Region has a jagged coastline of fjords, referred to as the Eastfjords (Austfirðir [ˈœystˌfɪrðɪr̥]).

The oldest municipality is Djúpivogur, which got their trading licence in 1589 and had a population of 412 in 2024.

The only car and passenger ferry that sails between Iceland and the European continent calls at Seyðisfjörður once a week except in the winter season.

Among notable tourist destinations are the Helgustaðir mine, which is known for its Iceland spar, and Stuðlagil.