Hawkesbury is a town in the United Counties of Prescott and Russell in Eastern Ontario, Canada. Hawkesbury is the third most bilingual town in Ontario, with about 70% of its inhabitants being fluent in English and French. Franco-Ontarians make up 89% of the population. The Long-Sault Bridge links it to Grenville, Quebec to the north. This bridge, crossing Chenail Island, is the only interprovincial bridge between Ontario and Quebec east of Ottawa.