The municipality of Kinnear's Mills economy lies mostly with maple syrop production and agriculture. Besides the milk production, this latter extends through a variety of breedings like pigs and laying hens. Orchards and the cultivation of nuts complete the picture of this diversified agriculture.
The municipality also records activities in many other spheres, particularly businesses in hairdressing, excavation and material transport, smoked fish, sawmill, bow making and a translating office.
Moreover, a renown camping site allows the municipality to double the number of residents during summertime.