Dahlgren (surname)
Dahlgren is a Swedish surname. Geographical distribution. As of 2014, 51.5% of all known bearers of the surname "Dahlgren" were residents of Sweden (frequency 1:1,568), 37.6% of the United States (1:78,773), 2.7% of Finland (1:16,759), 2.3% of Canada (1:130,028), 2.2% of Norway (1:19,260) and 1.5% of Denmark (1:31,711). In Sweden, the frequency of the surname was higher than national average (1:1,568) in the following counties: In Finland, the frequency of the surname was higher than national average (1:16,759) in the following regions: