Six states have five or less letters in their name. Iowa, Ohio and Utah have four letters in their name. Idaho, Maine and Texas have five letters in their name.
5
Idaho, Maine, Texas.
Texas is the only five letter state among the seceding states.
Five US states have eleven letters in their names: Connecticut, Mississippi, North Dakota, South Dakota, and last but not least Rhode Island.
Robin
five sides, 10 letters= pentagonal
47, all of them except Iowa, Ohio, and Utah. If you mean how many have exactly 5 letters in their names, then it is 3: Idaho, Maine, and Texas.
Texas, Maine, and Idaho
Godworth
The Rodil is a Spanish river with five letters.
There are several states with 8 letters in the name. A few of the states are Missouri, Arkansas, and Michigan.