. 9 3 % ▁of ▁the ▁population . ▁ 2 9 . 6 % ▁were ▁of ▁Norwegian , ▁ 2 6 . 8 % ▁German , ▁ 1 4 . 0 % ▁Finn ish , ▁and ▁ 7 . 5 % ▁Swedish ▁ancest ry ▁according ▁to ▁Census ▁ 2 0 0 0 . ▁ ▁There ▁were ▁ 1 7 2 ▁households ▁out ▁of ▁which ▁ 2 6 . 7 % ▁had ▁children ▁under ▁the ▁age ▁of ▁ 1 8 ▁living ▁with ▁them , ▁ 4 9 . 4 % ▁were ▁married ▁cou ples ▁living ▁together , ▁ 5 . 8 % ▁had ▁a ▁female ▁house holder ▁with ▁no ▁husband ▁present , ▁and ▁ 4 1 . 9 % ▁were ▁non - famil ies . ▁ 3 8 . 4 % ▁of ▁all ▁households ▁were ▁made ▁up ▁of ▁individuals ▁and ▁ 1 9 . 8 % ▁had ▁someone ▁living ▁alone ▁who ▁was ▁ 6 5 ▁years ▁of ▁age ▁or ▁older . ▁The ▁average ▁household ▁size ▁was ▁ 2 . 2 2 ▁and ▁the ▁average ▁family ▁size ▁was ▁ 3 . 0 1 . ▁ ▁In ▁the ▁city , ▁the ▁population ▁was ▁spread ▁out ▁with ▁ 2 1 . 8 % ▁under ▁the ▁age ▁of ▁ 1 8 , ▁ 7 . 2 % ▁from ▁ 1 8 ▁to ▁ 2 4 , ▁ 2 3 . 4 % ▁from ▁ 2 5 ▁to ▁ 4 4 , ▁ 1 9 . 2 % ▁from ▁ 4 5 ▁to ▁ 6 4 , ▁and ▁