How do I know if I am in a flood zone? Community Services September 14, 2018 23:55 Updated Follow Related articles Harrisburg Floodplain Map Is my property in the 100-Year Floodplain and what does that mean? Floodplain Information Guide Where can I obtain a recycling bin? What housing options are available to senior citizens in the city? Comments 0 comments Please sign in to leave a comment.