▁administration ▁of ▁public ▁services ▁is ▁organized . ▁Not ▁all ▁municipal ities ▁are ▁divided ▁into ▁bor ough s ; ▁some ▁municipal ities ▁only ▁use ▁auxili ary ▁coun c ils ▁or ▁presiden cies ▁( pres iden cia ▁auxili ar ▁in ▁Spanish ) ▁to ▁admin ister ▁the ▁cities ▁or ▁towns ▁that ▁are ▁not ▁adjacent ▁to ▁the ▁city ▁that ▁serves ▁as ▁the ▁seat ▁of ▁the ▁municipal ▁council ▁( ay unt amiento ▁in ▁Spanish ), ▁whereas ▁bor ough s ▁are ▁usually ▁- but ▁not ▁always - ▁used ▁when ▁the ▁entire ▁municipality ▁is ▁urban ized ▁and ▁is ▁co ext ensive ▁with ▁a ▁single ▁city . ▁ ▁Some ▁of ▁the ▁municipal ities ▁that ▁are ▁divided ▁into ▁bor ough s ▁are : ▁ ▁B aja ▁California ▁Municip ality ▁of ▁Mex ical i , ▁ ▁is ▁divided ▁into ▁ 1 4 ▁bor ough s ▁compos ing ▁the ▁entire ▁municipality , ▁the ▁city ▁of ▁Mex ical i ▁compr ises ▁the ▁municipal ▁seat ▁plus ▁ 3 ▁metropol itan ▁bor ough s . ▁Municip ality ▁of ▁T iju ana , ▁is ▁divided ▁into ▁ 8 ▁bor ough s ▁that ▁compose ▁the ▁entire ▁municipality , ▁the ▁city ▁of ▁T iju ana ▁metropol itan ▁area ▁compr ises ▁all ▁ 8 ▁bor ough s . ▁Municip ality ▁of ▁En sen ada , ▁the ▁largest ▁municipality ▁in ▁the ▁country ▁is ▁divided ▁in ▁ 2 4 ▁bor ough s ▁of ▁which ▁the ▁city ▁of ▁En sen ada ▁compr ises ▁the ▁two ▁smallest ▁( E ns en ada ▁and ▁Chap ul te pec ). ▁Municip ality ▁of ▁T ec ate ,