The Ten Skinniest Counties in the United States as of 2008

America has an obesity problem. That's something most people on hear on a daily basis. Everyday some new list comes out of the fattest cities, the fattest counties, the fattests states, the fattest everything. With all this obesity talk in the media, a person has reason to think that pretty much everyone in America is overweight. It has actually become an American stereotype to be overweight, but this is not the case in all of America. It is important for people to know that not everyone in America is overweight and not everyone who happens to live in those places that are named "the fattest" whatever is overweight. Here is a list of the skinniest counties in America measured by body mass index (BMI).

BMI is calculated by multiplying your height (in inches) by your height to get the square number, diving your weight (in pounds) by the square number, and multiplying that number by 703. The average (and healthy) result is between 19 and 25 (for people aged 20 or older). A BMI of 30 or above is considered obese, but it is important to remember how important height is in this equation.

Marin County

Marin County is located in California has the skinniest cities in the country. Marin County includes Novato and San Rafael. The residents of Marin County have an average body mass index of 24.48.

San Francisco County

San Francisco County is also located in California and only includes the city of San Francisco. San Francisco residents have a slightly higher body mass index than Marin County, at 24.86.

Williamson County and Maury County

There is actually a tie between Williamson County and Maury County for the number three skinniest county in the United States. Both counties are located in Tennessee and include the cities of Brentwood, Franklin, and Spring Hill. The BMI for these counties is 24.90.

Boulder County

As you may have guessed, Boulder County is located in Colorado. Boulder County includes Boulder, Lafayette, and Longmont and is ranked the number five skinniest city in America. The average body mass index of Boulder County residents is 24.94.

Douglas County

The number six skinniest county in America is also located in Colorado. Douglas County is made up of three cities, Castle Rock, Highlands Ranch, and Parker. The average body mass index of Douglas County inhabitants is 25.34.

Alexandria County

Alexandria is located in Virginia and is actually only made up of the city of Alexandria. The average body mass index of people who are living in Alexandria is 25.41.

San Mateo County

The eight skinniest county in America is also located in California. San Mateo county is made up of Belmont, Burlingame, Daly City, East Palo Alto, Foster City, Menlo Park, Millbrae, Pacifica, Redwood City, San Bruno, San Carlos, San Mateo, and South San Francisco. The average BMI of residents of San Mateo County is 25.42.

Fayette County

Fayette County is number 9 on the list of skinniest counties in the United States and is located in Georgia. Fayette County is actually only made up of one city, Peachtree City. The average body mass index of people living in Peachtree City is 25.43.

Santa Fe County

The tenth skinniest county in America is located in New Mexico. Santa Fe is another county made up of a single city, which is also named Santa Fe. The average body mass of people residing in Santa Fe is 25.50.

ref-http://money.cnn.com