Most Common Last Name in Every State

Source: 7Michael / Getty Images

11. Hawaii
> Most common: Smith (7,000)
> 2nd most common: Johnson (6,000)
> 3rd most common: Brown (5,000)

Source: Mike Worley / Getty Images

12. Idaho
> Most common: Johnson (25,000)
> 2nd most common: Smith (223,000)
> 3rd most common: Miller (13,000)

Source: flickr user mindfrieze / Wikimedia Commons

13. Illinois
> Most common: Johnson (152,000)
> 2nd most common: Smith (148,000)
> 3rd most common: Williams (110,000)

Source: User:Vmenkov / Wikimedia Commons

14. Indiana
> Most common: Smith (111,000)
> 2nd most common: Jones (96,000)
> 3rd most common: Miller (76,000)

Source: Brian W. Schaller / Wikimedia Commons

15. Iowa
> Most common: Johnson (48,000)
> 2nd most common: Smith (39,000)
> 3rd most common: Miller (34,000)