CREATE TABLE table_12576536_1 (population__maryborough_ VARCHAR2, population__woocoo_ VARCHAR2)

Name the population of maryborough when population of woocoo is 2700
SELECT population__maryborough_ FROM table_12576536_1 WHERE population__woocoo_ = 2700
SELECT "population__maryborough_" FROM "table_12576536_1" WHERE "population__woocoo_" = 2700