The dataset includes 5303 Pacific walrus genotypes for 114 single nucleotide polymorphisms used in the manuscript "Panmixia in a sea ice-associated marine mammal:  evaluating genetic structure of the Pacific walrus (Odobenus rosmarus divergens) at multiple spatial scales".  Biopsy samples were collected from Pacific walruses hauled-out on sea ice in the Bering and Chukchi seas from 2013-2017 in June of each year.  Genotypes are presented in two columns per locus and missing data is coded as "N".