"los que no son de paso"
"estoy de paso" I'm not from this place, it only happens I'm here now. Example: bussinesss men, hired people, workers who build a house and so. So we can call them "visiting people"
"los que no son" the people who are not
together "los que no son de paso": the people who are not visiting the city now
It means the local people, the people who are born there or lives since time ago.
Also people who feels this place as his home.
barras de bar : bar desk, bar counter (plural)
saludos