The most expensive states to live in: the top 10.

10. Maine

Living Cost Index: 116.9

9. New Jersey 

Living Cost Index: 118.6 

8. Oregon 

Living Cost Index: 120.6 

7. Maryland 

Living Cost Index: 125.1 

6. Alaska 

Living Cost Index:126.7 

4. California 

Living Cost Index:139.8 

3. Massachusetts 

Living Cost Index: 147.9  

2. Washington DC 

Living Cost Index: 154.5 

1. Hawaii 

Living Cost Index: 189.9