Question: What was the population of Green County?
SQL: SELECT MIN("Population") FROM "2-1840578-1" WHERE "County" = 'Green';

Question: Which county had 6807 households and a median family income of $49,865?
SQL: SELECT "County" FROM "2-1840578-1" WHERE "Number of households" > 6807.0 AND "Median family income" = '$49,865';