For the Mazowieckie voivodship a year 2014 was a consecutive one which recorded a population growth. Compared with 2013, as a result of positive net migration within internal migrations and negative net migrations within international migrations, the number of permanent residents of the voivodship went up by 13108 persons. Population growth was also a result of a positive natural increase. In 2014 the number of live births was higher by 3645 than number of deaths. The actual increase was as high as 16753 persons.