user: Question: Which Area km 2 has an Official Name of southampton, and a Population larger than 1601?
Columns: ['Official Name', 'Status', 'Area km 2', 'Population', 'Census Ranking']
Types: ['text', 'text', 'real', 'real', 'text']
Sample row: ['Kingsclear', 'Parish', 303.26, 6689.0, '545 of 5,008']
SQL:

assistant: SELECT "Area km 2" FROM "Table" WHERE "Official Name" = 'southampton' AND "Population" > 1601.0;