Full list of US cities, states and counties (60k+ entries) formatted for your convenience:

City|State short name|State full name|County|City Alias Mixed Case

Example:

Bronx|NY|New York|BRONX|University Heights

OR

Gaines|PA|Pennsylvania|TIOGA|Manhattan

61 states total (including foreign and military):

• Alabama
• Alaska
• Arizona
• Arkansas
• California
• Colorado
• Connecticut
• Delaware
• Florida
• Georgia
• Hawaii
• Idaho
• Illinois
• Indiana
• Iowa
• Kansas
• Kentucky
• Louisiana
• Maine
• Maryland
• Massachusetts
• Michigan
• Minnesota
• Mississippi
• Missouri
• Montana
• Nebraska
• Nevada
• New Hampshire
• New Jersey
• New Mexico
• New York
• North Carolina
• North Dakota
• Ohio
• Oklahoma
• Oregon
• Pennsylvania
• Rhode Island
• South Carolina
• South Dakota
• Tennessee
• Texas
• Utah
• Vermont
• Virginia
• Washington
• West Virginia
• Wisconsin
• Wyoming
• Puerto Rico
• Virgin Islands
• Washington, D.C.
• US Armed Forces Pacific
• American Samoa
• Guam
• Palau
• Federated States of Micronesia
• Northern Mariana Islands
• Marshall Islands
• US Armed Forces Europe

This data had been taken from several sources and assembled in year 2014. So far the list had served me well in terms of accuracy. I am not planning on maintaining or updating this data anywhere in the future, so if you are willing to make any changes to the file feel more than welcome to send in a pull request. In fact it would've been really cool if someone could add:

• ZIP codes
• Population

Enjoy!