Simplify the following text for a Grade 7 native English-speaking person.
Original: Esbjerg is a seaport on the west coast of the Jutland peninsula in southwest Denmark , the main town of Esbjerg Municipality , the site of its municipal council and with a population of 71,459 ( 1 January 2010 ) the fifth largest city in Denmark .
Simplified: Esbjerg is a city in Denmark , on the peninsula Jutland .