, ▁and ▁fish ing ▁are ▁common ▁activities ▁on ▁the ▁lake ▁or ▁the ▁Rock ▁River , ▁which ▁fe eds ▁it . ▁The ▁Rock ▁River ▁runs ▁all ▁the ▁way ▁to ▁the ▁Mississippi . ▁ ▁Dem ograph ics ▁▁ 2 0 1 0 ▁census ▁As ▁of ▁the ▁census ▁of ▁ 2 0 1 0 , ▁there ▁were ▁ 5 , 4 6 1 ▁people , ▁ 2 , 2 2 7 ▁households , ▁and ▁ 1 , 4 2 6 ▁families ▁res iding ▁in ▁the ▁city . ▁The ▁population ▁density ▁was ▁. ▁There ▁were ▁ 2 , 4 1 0 ▁housing ▁units ▁at ▁an ▁average ▁density ▁of ▁. ▁The ▁ra cial ▁make up ▁of ▁the ▁city ▁was ▁ 9 4 . 9 % ▁White , ▁ 0 . 9 % ▁African ▁American , ▁ 0 . 8 % ▁Native ▁American , ▁ 0 . 5 % ▁Asian , ▁ 1 . 4 % ▁from ▁other ▁races , ▁and ▁ 1 . 4 % ▁from ▁two ▁or ▁more ▁races . ▁His pan ic ▁or ▁Lat ino ▁of ▁any ▁race ▁were ▁ 4 . 1 % ▁of ▁the ▁population . ▁ ▁There ▁were ▁ 2 , 2 2 7 ▁households ▁of ▁which ▁ 3 4 . 2 % ▁had ▁children ▁under ▁the ▁age ▁of ▁ 1 8 ▁living ▁with ▁them , ▁ 4 7 . 2 % ▁were ▁married ▁cou ples ▁living ▁together , ▁ 1 1 . 0 % ▁had ▁a ▁female ▁house holder ▁with ▁no ▁husband ▁present , ▁ 5 . 8 % ▁had ▁a ▁male