Kids Count Data Center

Definitions: Low-birthweight is defined as live births weighing less than 5.5 pounds. 

Data Source: National Center for Health Statistics.

Footnotes: Low-birthweight in percentage.

Note: Maps use the natural break classification method, which reflects patterns in the data by dividing the map into naturally occurring groups. Using statistical tools, this method determines cut-off points for each group by identifying large gaps in data values.