The District of Columbia was a magnet for new residents in the first part of the twentyfirst century. Drawn by good jobs, new condos, and burgeoning entertainment districts, the city attracted thousands of young professionals who might have otherwise settled in the region's suburbs. At the same time, some of the District's longer-term residents are leaving the city. The growing population provides a boon to the city, but is also leads to an increasing social, economic, and cultural divide. Between 2000 and 2010, the District of Columbia gained nearly 30,000 people. The 5.2% population growth in the last decade marks a turnaround for the city, which has lost residents in every decade since 1950. Population growth was fueled by an influx of white residents and an unprecedented loss of African Americans. This article explores the population and demographic trends in the District of Columbia between 2000 and 2010 by examining the socioeconomic characteristics of the city's in-migrants, out-migrants, and nonmovers to explore evidence of gentrification. Using microdata from the 2006-2010 American Community Survey, this research also uses logistic regression to analyze the factors associated with out-migration from the city and movement within the city.Washington, DC is experiencing an unprecedented pace of population growth and demographic change. According to the popular media, the city's population growth signifies rapid gentrification of historically African American neighborhoods (e.g., Moreno, 2007;Tavernise, 2011;Wax, 2011;DePillas, 2011). Gleaming new condominiums in the District's U Street corridor, upscale rental projects in Chinatown, and trendy bars and restaurants in the Atlas district all reflect investment in neighborhoods that had been considered distressed or in decline in the not too distant past (Farmer, 2011). Development patterns aside, the influx of new white residents has also been viewed as sufficient evidence of gentrification in the city (Fisher, 2011.) The population growth and demographic changes in the District of Columbia reflect a dramatic shift for the city that has seen five straight decades of population loss. The causes of those changes are varied and the consequences could be far-reaching. This research examines demographic trends in the District of Columbia in the second half of the last decade through the lenses of residential mobility and gentrification. I analyze the demographic and socioeconomic characteristics of migrants into and out of the District of Columbia, as well as the characteristics of non-migrants and movers within the city. In addition, I use multinomial regression analysis to model the relationship between household characteristics and the likelihood of moving within the city, to the city's suburbs, or out of the region altogether. A better understanding of the process of in-and out-migration, the characteristics of movers, and the destinations of households that left the city can shed light on the regional implications of population and demographic chan...