Texas is the larger of the two states.
The country of Chile is relatively long and narrow. India's state of Kerala, located on the southwest coast of the country, resembles the shape of Chile, but is much smaller.
Texas
U.S.A is the country and Texas is a state like in Canada Quebec is a province.
Texas is larger in area.
A state
There is no US state with anything like that area. Texas is more than a quarter larger while the given area is about a quarter larger than the next US state, California. If the question refers to a state in another country then it would help if the question identified which country.
Colorado and Texas
Kerala
Texas is a state of the United States of America. It is not itself a country, and there is no country within the state. There is a country that shares a border with Texas, and that related question is linked below.
a state (country) that has a long narrow shape like Chile, or Italy
Kerala state of India.