One of Portland's oldest neighborhood associations, the PDNA was formed in 1977 to improve the livability of the central city.  Its approximate boundaries are the I-405 freeway, the Willamette River, SW Stark St., and W Burnside St.

Members of the PDNA live, work, own property, or attend educational institutions within the association's borders.  Membership is free and all work is purely voluntary.  Regular meetings are held to discuss common issues including affordable housing, homelessness, crime prevention, transportation, land use, preservation of historic buildings, pedestrian safety, noise ordinances, and many others.  Neighborhood Associations also coordinate social gatherings like ice cream socials, picnics, and concerts in the park.