Question: What is the census ranking for the Perth parish?
SQL: SELECT "Census Ranking" FROM "1-176524-2" WHERE "Official Name" = 'Perth';

Question: What is the minimum population of the parish with a 750.51 km area?
SQL: SELECT MIN("Population") FROM "1-176524-2" WHERE "Area km 2" = '750.51';

Question: What is the census ranking of the Perth parish?
SQL: SELECT "Census Ranking" FROM "1-176524-2" WHERE "Official Name" = 'Perth';