Migration, along with births and deaths, are the components that determine population change. Total net migration itself is a factor of two determinants: internal migration and international migration. Internal migration is the number of people moving from one area in the county, state, or nation to another, while international migration tracks the movement of the foreign-born and the emigration of the native-born. Because people move to areas that offer the jobs they need and the quality of life they desire, net migration is a useful tool in assessing the strengths and weaknesses of a region, both economically and socially. Understanding the composition of a community, especially stemming from international migration, helps businesses and local governments predict the community’s changing needs, and plan for changes in service demands. Residual net migration accounts for natural net increases by employing the following formula: Residual net migration = (population in the latter year – population in earlier year) – (births – deaths).

Wake County leads the state in net migration. In 2016, migration accounted for about 68% of population growth in Wake County.

Wake County receives a steady flow of people into - and out of - the county. On average, Wake County gains an average of 47 new residents each day due to net migration. In 2016, migration accounted for about 68% of population growth in Wake County.

The United States Census Bureau publishes official county net migration estimates annually in March each year.

April 2017; Revised to reflect 2016 Population Estimates (Components of Resident Population Change)