The title compound, {[Ag(C2H8N2)](C7H4FO2).H2O}(n), has been synthesized and characterized by elemental analysis and single-crystal X-ray diffraction. The Ag atom is bicoordinated in a linear configuration by two N atoms from two symmetry-related ethylenediamine ligands, giving linear polymeric chains with [-Ag-N-C-C-N-](n) backbones running parallel to the b axis. In the crystal packing, these linear chains are interconnected by N-H...O and O-H...O hydrogen bonds, and by weak Ag...OW interactions, forming layers parallel to the ab plane.