NOTE: This story has been updated from an earlier version.

Pennsylvania will lose a seat in the U.S. House of Representatives, according to figures released this morning by the U.S. Census Bureau.

The release of the national and state population figures and the congressional seat allotments was the first set of data announced by the Census Bureau from the 2010 Census count.

Pennsylvania will have 18 seats in the House, instead of 19, beginning in 2013.

The U.S. population as of April 1, 2010, was 308,745,538, representing a 9.7 percent growth from 2000.

Pennsylvania's April 1, 2010, population was 12,702,379, a 3.4 percent increase from the state's 2000 population.

The trend nationally in population growth has been toward the southwest, with Nevada experiencing the highest percentage growth increase, 35.1 percent, in the last decade.

Historically, Pennsylvania has been losing seats in the House over the past century. The state had 36 seats in 1910. In 1960, the Keystone State had 27 seats and had been losing two seats each decade up to 2000.

The U.S. Constitution requires the Census Bureau to report the congressional apportionment totals to President Obama by Dec. 31.