poughkeepsie, philadelphia , San Francisco,
Only 1. The city you are looking for is Johannesburg.
There are many US cities that have 5 letters in their name. Some are Miami, Akron, Alcoa, Butte, and Austin.
US Cities with 4 letters in their names: * Reno, Nevada * Bath, Maine * Erie, Pennsylvania * Lynn, Masssachusetts
Bournvile
24
Honolulu, Hawaii Beaumont, Texas
los angeles
Pittsburg
You are asking us to construct a seven letter word, using twelve letters. This does not seem to be mathematically possible.
Twelve has six letters, seventeen has nine.
There isn't a city in the United States that has nineteen letters in its name. Cities with nineteen letters elsewhere include Siemieniakowszczyzna and Newtownmountkennedy.
No U.S. city starts with the letters Lesb.