CREATE TABLE table_42839 ("Name" TEXT, "Seat" TEXT, "Population  ( 2011 ) " FLOAT, "Area  ( km 2  ) " FLOAT, "Density  ( inhabitants/km 2  ) " FLOAT)

What is the lowest population for the area that has a density of 36.7?
SELECT MIN("Population (2011)") FROM table_42839 WHERE "Density (inhabitants/km 2 )" = '36.7'
SELECT MIN("Population (2011)") FROM "table_42839" WHERE "Density (inhabitants/km 2 )" = '36.7'