The population of the Czech Republic was over 10.53 million as of Dec. 31, 2010, according to preliminary estimates the Czech Statistical Office (ČSÚ). The population grew by 26,000 over 2009; some 39.7 percent of the increase was due to a higher number of births than deaths. The infant mortality rate also reached a record low, the statisticians said, while the net migration trend slowed.