An estimated 32.3% of Michigan adults were obese in 2018, down slightly from 32.5% in 2017, according to a federal health survey.

Michigan now ranks 32nd in obesity. Nationwide, 31.3 percent of adults are obese, based on responses to the federal Centers for Disease Control’s annual Behavioral Risk Factor Surveillance survey. Obese is defined as adults with a body mass index of 30.0 or higher based on reported height and weight.

Colorado ranked first among the 50 states, while West Virginia ranked last. In the Great Lakes region, Michigan ranked above Indiana and Ohio, who were at Nos. 38 and 39 respectively, but below Illinois (No. 24) and Wisconsin (No. 30).

Below is an online database that allows you to look up the percentage of obese adults in any Michigan county, based on the 2015 surveys, the most recent county-level data available. Also shown is the percentage of adults who are “physically inactive," which is defined as not having vigorous activity for at least 30 minutes three times a week.

Obesity rates by Michigan county

We also have an online calculator that allows to determine your body mass index based on your height and weight.

Note: BMI is a quick and easy way to screen for weight, but there are factors that can throw off the calculations. For instance, a muscular person may be classified as “overweight” because muscle weighs more than fat.

Adult obesity is defined as a person with a body mass index -- or BMI -- of 30 or above, a number based on weight and height. A 30 BMI translates into a weight of 209 pounds for someone who is 5 foot 10 inches or 180 pounds for someone who is 5 foot 5 inches.

Among the survey findings regarding obesity in Michigan: