The Regional Plan for the Greenbelt project. The city would occupy a 3,400-acre site in Maryland's Prince George's County. There would be 885 units, housing over 3,000 residents.
Graphic from Library of Congress / 1936

The Regional Plan for Greenhills envisaged a community in Ohio's Hamilton County. It would be comprised of 6,800 acres, with 676 housing units. The population of the fully-occupied city was 2,600.
Graphic from Library of Congress / 1936

Greendale's Regional Plan foresaw a Milwaukee County community sited on 3,400 acres and featuring 572 residential units. When finished, the garden suburb boasted a population of 2,800.
Graphic from Library of Congress / 1936