The surprising results:
New York is home to the most neurotic and unfriendly people in American while North Dakota is where the nicest people live, according to a Cambridge University "personality map" of the USA.
[. . .]
Researchers created the first ever map of its kind is based on the results of a six year online survey of 620,000 people.
They claim it reveals how certain types of people are more likely to live and flourish in different parts of the country and showed links between personality traits and social phenomenon, like crime rates.
[. . .]
The report, "The Geography Of Personality; A Theory of the Emergence, Persistence and Expression of Geographic Variation in Basic Traits" is published in the journal, Perspectives On Psychological Science.
Personality traits: Sociable, energetic and enthusiastic
High-scoring states: North Dakota, Wisconsin, District of Columbia, Nebraska, Minnesota, Georgia, South Dakota, Utah, Illinois, Florida
Low-scoring states: Vermont, Washington, Alaska, New Hampshire, Maryland, Idaho, Virginia, Oregon, Montana, Massachusetts
Personality traits: Warm, compassionate, co-operative and friendly.
Highest-scoring states: North Dakota, Minnesota, Mississippi, Utah, Wisconsin, Tennessee, North Carolina, Georgia, Oklahoma, Nebraska.
Lowest-scoring states: New York, Nevada, Wyoming, District of Columbia, Alaska, Maine, Rhode Island, Virginia, Connecticut, Montana.
Personality traits: Dutiful, responsible, self-disciplined.
Highest-scoring states: New Mexico, North Carolina, Georgia, Utah, Kansas, Oklahoma, Nebraska, Florida, Arizona, Missouri.
Lowest-scoring states: Wyoming, Rhode Island, Hawaii, Maine, Alaska, Connecticut, New Jersey, New Hampshire, Massachusetts, New York.
Personality traits: Anxious, stressful and impulsive.
Highest-scoring states: West Virginia, Rhode Island, New York, Mississippi, New Jersey, Pennsylvania, Kentucky, Louisiana, Ohio, Arkansas.
Lowest-scoring states: Alaska, Oregon, South Dakota, Colorado, Utah, Washington, Arizona, Nebraska, North Dakota, Nevada.
Personality traits: Curious, intellectual, creative.
Highest-scoring states: District of Columbia, New York, Oregon, Massachusetts, Washington, California, Vermont, Colorado, Nevada, Maryland.
Lowest-scoring states: Wisconsin, Alabama, Alaska, Wyoming, North Dakota, Hawaii, Kentucky, Nebraska, Iowa, Delaware.
Manuscript (pdf). Abstract.