According to the United States Census Bureau, the city has a total area of , of which is land and is water. thumb|left|275px|Great Flood of 1993, with the Mississippi River out of its banks in Alexandria.
According to the United States Census Bureau, the city has a total area of  of which is land and is water thumb|left|275px|Great Flood, of 1993 with the Mississippi River out of its banks in Alexandria.