His Royal Highness Prince William of Wales, in RAF uniform. (Robert Payne photo)

His Royal Highness Prince William of Wales, in RAF uniform. (Robert Payne photo)

(Cheyenne, Wyo.) — “William” zoomed to the top of the list for Wyoming’s most popular boy baby names in 2011, joined by “Emma” as the number one choice for girls, according to the Wyoming Department of Health’s Vital Statistics Services Program.

William held the top spot on the boys’ list for 2011, followed by Jacob, Jackson, Parker, Mason and Liam. “Interestingly, William was not on our most popular names list for the previous year,” said Jim McBride, Vital Statistics Services Program manager with the Wyoming Department of Health. “Perhaps Prince William’s royal wedding in England last year helped make it a more popular name.”

For girls, Emma was the number one name chosen in 2011, followed by Olivia, Sophia, Addison and Isabella/Madison.

“Last year, births were down somewhat over 2010,” McBride said. The program recorded 7,336 births to Wyoming resident mothers during 2011, which is decreased slightly from 7,541 in 2010.

McBride noted Wyoming is following the national trend with a decrease in teen births since 2007. In 2011, there were 625 births to young mothers ages 14 to 19 while in 2007 there were 922 births to young mothers.

For 2011, there was an average of 20 births a day in the state. September 6 was the most active day for new babies with 33 births; April 3 was the slowest day with only two births.

McBride said the oldest mother was 47 and the youngest mother was 14. The year’s largest baby arrived weighing 11 pounds and 13 ounces. Wyoming saw 120 sets of twins born in 2011.

The Vital Statistics Services Program promotes and protects the health of Wyoming by serving as the official custodian of all vital records in the state and by disseminating health information in support of health and social planning efforts. More Wyoming statistics and information about the program can be found online at http://www.health.wyo.gov/rfhd/vital_records/index.html.