While looking through an almanac at the library, Destiny noticed some data showing the population density of various states. In 1990, which had fewer people per square mile, North Dakota or Montana?
State | 1990 | 2000
Montana | 5 | 6
Nevada | 10 | 18
South Dakota | 9 | 10
New Mexico | 12 | 15
North Dakota | 9 | 9
Find the 1990 column. Compare the numbers in this column for North Dakota and Montana.

5 is less than 9. Montana had fewer people per square mile in 1990.