Toikka is a Finnish surname.
As of 2014, 90.1% of all known bearers of the surname Toikka were residents of Finland (frequency 1:3,461), 3.2% of the United States (1:6,337,742), 3.1% of Estonia (1:24,475) and 1.1% of Sweden (1:518,251) and 1.0% of Canada (1:2,164,589).
In Finland, the frequency of the surname was higher than national average (1:3,461) in the following regions: [1]
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