Marionville is a dispersed rural community[1] in Russell Township, Ontario, located on the border with the City of Ottawa and North Dundas.
The community is located about 750m northwest of the East Castor River.
[2] Marionville is situated approximately 37 kilometres southeast of Downtown Ottawa (45 km by road).
The town is represented both federally and provincially among the three electoral districts of Carleton, Glengarry—Prescott—Russell, and Stormont—Dundas—South Glengarry.
This gives Marionville one of the highest governmental representation levels per capita in the world.