I found this really cool study that was done that ranks the prevalence of each Big Five trait in each of the 50 states in the US.

The United States of Mind - WSJ.com

It's cool how the west coast has a high preference of Openness, Northerners scored high on Extraversion, and New Yorkers/Bostonians have high Neuoticism and low Agreeableness just like the stereotypes suggest!

Based on this study and the test in this thread http://www.typologycentral.com/forum...-you-have.html I would likely be from Oregon or Seattle as it matches both my accent AND my personality.