Taumatawhakatangihangak oauauotamateaturipukaka pikimaungahoronukupokaiwhe nua kitanatahu(not actually the name of a city) the longest name of a city is probably Palmerston North or Tamakimakaurau
dunn
Thiruvananthapuram
longest city name is Menomonie Junction longest single word city name is Blanchardville
Massachusetts has 13 letters
washington court house
Jefferson City, Missouri (there's 13 letters)
The awesome land of John and Eric
The name of the longest road in Glasgow is Great Western Road. It stretches for about 5.9 miles from the city center to Anniesland.
The city with the longest official name in the world is Taumatawhakatangihangakoauauotamateaturipukakapiki-maungahoronukupokaiwhenuakitnatahu, a hill in New Zealand. However, the longest city name in the world is Krung Thep Mahanakhon Amon Rattanakosin Mahinthara Ayuthaya Mahadilok Phop Noppharat Ratchathani Burirom Udomratchaniwet Mahasathan Amon Piman Awatan Sathit Sakkathattiya Witsanukam Prasit, known as Bangkok, in Thailand.
I think it is PetropavlovskKamchatskiy in Russia on the Kamchutka peninsula.
That would be Oklahoma City, Oklahoma.