CREATE TABLE table_56570 ("County" TEXT, "Year Founded" TEXT, "County Seat" TEXT, "2010 Census Population" FLOAT, "July 1 ,  2012 Population Estimate." FLOAT, "Area  ( Sq. Mi. ) " FLOAT, "Land Area  ( Sq. Mi. ) " FLOAT)

Which is the total number in the 2010 Census in Oconee County where the area in square miles was less than 674?
SELECT SUM("2010 Census Population") FROM table_56570 WHERE "County" = 'oconee county' AND "Area (Sq. Mi.)" < '674'
SELECT SUM("2010 Census Population") FROM "table_56570" WHERE "Area (Sq. Mi.)" < '674' AND "County" = 'oconee county'