9   sq ▁mi , ▁ 3 , 0 5 4   km 2 ) ▁and ▁the ▁smallest ▁is ▁St . ▁Louis ▁city ▁( 6 1 . 9   sq ▁mi , ▁ 1 6 0   km 2 ). ▁▁ ▁The ▁Federal ▁Information ▁Process ing ▁Standard ▁( FI PS ) ▁is ▁used ▁by ▁the ▁U . S . ▁government ▁to ▁uniqu ely ▁identify ▁count ies , ▁and ▁is ▁provided ▁for ▁each ▁entry . ▁These ▁codes ▁link ▁to ▁the ▁United ▁States ▁Census ▁Bureau ' s ▁" quick ▁facts " ▁for ▁each ▁county . ▁To ▁distinguish ▁from ▁count ies ▁in ▁other ▁states , ▁one ▁must ▁use ▁Missouri ' s ▁F IP S ▁code , ▁ 2 9 . ▁For ▁example , ▁Ada ir ▁County ' s ▁unique ▁nation wide ▁identifier ▁is ▁ 2 9 0 0 1 . ▁ ▁Count ies ▁ ▁| } ▁ ▁Form er ▁county ▁names ▁ ▁See ▁also ▁List ▁of ▁cities ▁in ▁Missouri ▁List ▁of ▁municipal ities ▁in ▁Missouri ▁List ▁of ▁U . S . ▁count ies ▁by ▁population ▁Missouri ▁census ▁statistical ▁areas ▁Dem ograph ics ▁of ▁Missouri ▁ ▁References ▁ ▁External ▁links ▁ ▁Missouri ▁Association ▁of ▁Count ies ▁ ▁Dig it ized ▁ 1 9 3 0 ▁Plat ▁Books ▁of ▁Missouri ▁Count ies ▁from ▁University ▁of ▁Missouri ▁Division ▁of ▁Special ▁Col lections , ▁Archives , ▁and ▁R are ▁Books ▁ ▁Missouri ▁▁ ▁Count ies <0x0A> </s> ▁ 2 0 1 9 ▁B asket bol ▁Sü per ▁L igi ▁( BS L ) ▁Play offs ▁will ▁be ▁the ▁final ▁phase