The data illustrates the leading U.S. states based on the highest average twin birth rates in the period 2014-2016. In that period, Connecticut was the U.S. state with the highest twin birth rate. In this state, more than 41 births out of 1,000 were twin births.
Connecticut | 41.3 |
District of Columbia | 40.4 |
New Jersey | 40.1 |
Massachusetts | 38.3 |
Illinois | 37.9 |
New York | 36.4 |
Michigan | 36.4 |
South Carolina | 35.7 |
Utah | 35.7 |
Alabama | 35.7 |