State: County:

A low birth weight baby is under 2,500 grams, or roughly 5 lbs 8 oz. The percent of low birth weight babies is calculated by dividing the number of low birth weight babies by the number of live births. We multiply the result by 100. In counties with relatively few people, a small number of low birth weight babies may have a significant effect on percents from year to year.

In New Hampshire...

View Rankings:
Source: Maine Bureau of Health, Office of Data, Research and Vital Statistics (; New Hampshire Department of Health and Human Services, Health Statistics and Data Management (; Vermont Department of Health, Agency of Human Services ( or

Source:: National Center for Health Statistics, Birth Data (