▁is ▁known ▁as ▁the ▁smallest ▁city ▁in ▁the ▁United ▁States ▁situated ▁in ▁two ▁count ies . ▁ ▁Dem ograph ics ▁▁ 2 0 1 0 ▁census ▁As ▁of ▁the ▁census ▁of ▁ 2 0 1 0 , ▁there ▁were ▁ 8 0 ▁people , ▁ 5 0 ▁households , ▁and ▁ 2 4 ▁families ▁res iding ▁in ▁the ▁city . ▁The ▁population ▁density ▁was ▁. ▁There ▁were ▁ 1 0 0 ▁housing ▁units ▁at ▁an ▁average ▁density ▁of ▁. ▁The ▁ra cial ▁make up ▁of ▁the ▁city ▁was ▁ 1 0 0 . 0 % ▁White . ▁ ▁There ▁were ▁ 5 0 ▁households ▁of ▁which ▁ 4 . 0 % ▁had ▁children ▁under ▁the ▁age ▁of ▁ 1 8 ▁living ▁with ▁them , ▁ 4 8 . 0 % ▁were ▁married ▁cou ples ▁living ▁together , ▁and ▁ 5 2 . 0 % ▁were ▁non - famil ies . ▁ 4 6 . 0 % ▁of ▁all ▁households ▁were ▁made ▁up ▁of ▁individuals ▁and ▁ 3 4 % ▁had ▁someone ▁living ▁alone ▁who ▁was ▁ 6 5 ▁years ▁of ▁age ▁or ▁older . ▁The ▁average ▁household ▁size ▁was ▁ 1 . 6 0 ▁and ▁the ▁average ▁family ▁size ▁was ▁ 2 . 1 3 . ▁ ▁The ▁median ▁age ▁in ▁the ▁city ▁was ▁ 7 0 ▁years . ▁ 2 . 5 % ▁of ▁residents ▁were ▁under ▁the ▁age ▁of ▁ 1 8 ; ▁ 5 . 1 % ▁were ▁between ▁the ▁ages ▁of ▁ 1 8 ▁and ▁ 2 4 ;