 Still, the neighborhood indicators of vacancy rate, crime rate, and housing value continue to show signs of improvement.According to the 2010 census, Patterson Park was one of the fastest growing areas in Baltimore, with a 19% increase in population since 2000.Founded in 1986 under the name Baltimore-Linwood Neighborhood Association and renamed to Patterson Park Neighborhood Association (PPNA) in 2003, the association is a registered 501(c)3 non-profit organization.