Three Types of People in U.S.?

Marina Koren reports on a recent study in the Journal of Personality and Social Psychology:

Thanks to demography researchers and their love for maps, Americans can visualize where their home states fit in on a national scale of a variety of political, economic, social, and health characteristics. One of the latest maps forgoes these traditional methods of measuring the country and investigates something a little less observable: the personality traits of its citizens.
The map, published in a recent study in Journal of Personality and Social Psychology, chops the country into three distinct psychological regions based on a range of empirical data. The researchers didn't predict what these clusters might look like (or how many of them there would be), but they expected neighboring states to be, on average, psychologically similar. Geographic proximity is often correlated with human behavior, such as personality traits and lifestyles.
The researchers used self-reported information from nearly 1.6 million people collected over 12 years for 48 states (excluding Alaska and Hawaii) and the District of Columbia. They employed a commonly used personality scale to measure participants on their levels of extraversion, agreeableness, conscientiousness, neuroticism, and openness to experience, as well as separate measures to gauge opinion on politics, social issues, leisure interests and music preferences. When a given state is said to be high in neuroticism, for example, that is to say that the mean level of that trait derived from a sample of that state's residents is high compared with the mean levels of the trait from samples of residents from other states. State-level factors like economic, social, health, and religious trends, along with census data, were also included in the analysis.

What's personality type of people in the Midwest?:

The "Friendly and Conventional" region. The first region features the states of Middle America, including South Dakota, Nebraska, and Iowa, known as the "red" states. People here ranked highly in levels of extraversion, agreeableness, and conscientiousness, moderately low in neuroticism, and very low in openness. Residents of the region tend to be "sociable, considerate, dutiful, and traditional," the researchers write. They are predominantly white with low levels of education, wealth, and social tolerance, and tend to be more religious and politically conservative than people outside of the region. They are also less healthy compared with other Americans.

Yes.