CREATE TABLE "list_of_the_most_populous_us_counties_so" (
  "rank" text,
  "county" text,
  "state" text,
  "land_area_km" text,
  "land_area_mi" text,
  "april_1_2010_census" text,
  "april_1_2010_density_km" text,
  "april_1_2010_density_mi" text,
  "july_1_2010_official_estimate" text,
  "july_1_2010_density_km" text,
  "july_1_2010_density_mi" text,
  "july_1_2011_official_estimate" text,
  "july_1_2011_density_km" text,
  "july_1_2011_density_mi" text,
  "mid_2010_to_mid_2011_change_absolute" text,
  "mid_2010_to_mid_2011_change_pct" text,
  "county_seat_or_courthouse" text
);

Question: What is the July 1, 2010 density when the April 1, 2010 density is 1,694?
SQL: SELECT "july_1_2010_density_km" FROM "list_of_the_most_populous_us_counties_so" WHERE "april_1_2010_density_mi"='1,694';

Question: Name the mid-2010 to mid-2011 change in the case where then April 1, 2010 census reports 662,564?
SQL: SELECT "mid_2010_to_mid_2011_change_absolute" FROM "list_of_the_most_populous_us_counties_so" WHERE "april_1_2010_census"='662,564';

Question: What is the rank where the July 1, 2010 density equals 437?
SQL: SELECT "rank" FROM "list_of_the_most_populous_us_counties_so" WHERE "july_1_2010_density_km"='437';

Question: What is the July 1, 2011 density if the July 1, 2010 official estimate is 800,482?
SQL: SELECT "july_1_2011_density_mi" FROM "list_of_the_most_populous_us_counties_so" WHERE "july_1_2010_official_estimate"='800,482';

Question: What is the mid-2010 to mid-2011 change where the July 1, 2011 density is 508?
SQL: SELECT "mid_2010_to_mid_2011_change_pct" FROM "list_of_the_most_populous_us_counties_so" WHERE "july_1_2011_density_mi"='508';

Question: What country had a July 1, 2010 density of 41?
SQL: SELECT "county" FROM "list_of_the_most_populous_us_counties_so" WHERE "july_1_2010_density_km"='41';