Missouri ranks 21st with 69,702 total square miles.
If you're looking for the technical answer, it is in the second rank.
New Jersey is number one in density of population per square mile and number 46 in land area (square miles) out of 50.
Texas ranks 2nd in the US (behind Alaska) with 268,580.82 square miles.
Second.
Alaska is the biggest state with 656,425 sq miles. Now, Alaska is not one of the continental states. So Texas would come in second place but first in size in the continental us with 268,601 followed by California with 163,707 sq miles.
31st in total area with 51,839.70 square miles.
37th in total area with 40,409.02 square miles.
18th in total area with 71,299.64 square miles.
It is second in size (area) to Alaska.
Indiana is 38th in size with 36,417.73 square miles.
It is the 19th state in area.