Louisiana

This is canonically where it's located.

Louisiana is a southern state in the United States of America.

Fiction

Marvel Comics continuity

Marvel The Transformers comics

The Air Strike Patrol raided a Louisiana oil refinery and were obliterated when one of the workers turned out to be a powerful mutant (not Gambit, thank Christ). The Human Factor!

Earthforce

These stories do not fit into the normal Marvel continuity. See Earthforce for details.

A Decepticon satellite containing deadly gases crashed into the state, near Route 43 between Jacksonville and New Orleans, and took Prowl with it. Everyone thought Prowl had died a heroic death, but actually he'd survived, neutralised the gas, and just lazed around with the locals, taking it easy while his comrades worried about him. His excuse for such shoddy behaviour was that Louisiana life is taken at a slower pace.

In the end, a fun time was had by all the Autobots as they watched two rival Decepticon factions beat each other up over the satellite. Life in the Slow Lane

The combined Decepticon army set up shop in Louisiana's bayou. In an effort to regain control of the army, Megatron and Shockwave sent wave after wave of hitmen after Starscream; they weren't slow at all, the dastards. Assassins Both the bayou and base became the site of a massive, multi-faction battle when the Mayhem Attack Squad and Autobot Earthforce got involved, the latter trying to help Starscream. External Forces! The Lesser Evil!

Live-action film series continuity

IDW Movie prequel comics

In the early 20th Century, Baton Rouge was home to the bluntly named Psychopathic Institute for the Long-Term Insane, where a crazed Archibald Witwicky was forced to take life at a slower pace. Movie Prequel #3

By 2003, the asylum had been long abandoned, and Bumblebee scanned it to get a lead on the AllSpark. Movie Prequel #4

Titan Magazines Movie comics

The following events occur in a splinter timeline where Megatron won the battle of Mission City.

The United States had been liberated from Decepticon domination but was still subject to deliberate attempts to cripple its infrastructure. Skyblast and Strongarm attempted to get a vital supply convoy through the Louisiana city of Shreveport, while taking fire from superior Decepticon numbers.

It's unknown whether a horrific occupation and war stopped Louisiana life being taken at a slower pace. Dark Spark