Between 1821 and 1823 its east side was mapped by William Edward Parry. Since 1999, it has been part of Nunavut. Before that, it was part of the District of Franklin. Most of the peninsula lies in Nunavut's Qikiqtaaluk Region, while its southwesternmost section, around Repulse Bay, lies in the Kivalliq Region. Communities on the peninsula include the hamlets of Repulse Bay and Hall Beach. The hamlet of Igloolik is located on an island lying just off the northeastern coast of the peninsula.