An electronic component includes a multilayer capacitor and an interposer including a substrate main body with an electric insulation property, the multilayer capacitor being mounted on one main surface side of the substrate main body. The multilayer capacitor includes a multilayer body, a first outer electrode, and a second outer electrode. The multilayer body includes an effective region and a non-effective region surrounding the effective region. A width of the effective region is larger than a width of the substrate main body, when a width of the multilayer body is represented by W11, a thickness of the multilayer body is represented by T11, and a thickness of the substrate main body is represented by T21, a value of W11/(T11+T21) is not less than about 0.90 and not more than about 1.10.