Jennings Lodge is a census-designated place and unincorporated community in Clackamas County, Oregon, United States, between Milwaukie and Gladstone. For statistical purposes, the United States Census Bureau has defined Jennings Lodge as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name. As of the United States Census, 2010, it had a total population of 7,315.