Warfield is a village at the bottom of the Rossland hill, immediately west of Trail, in the West Kootenay region of southern British Columbia. Settlement Warfield was named after Carlos Warfield, a business partner of Fritz Augustus Heinze, who built the Trail smelter. Annable, Mickey Mouse Town, and Minnie Mouse Town are among its six distinct neighbourhoods. In the 1930s, the Consolidated Mining and Smelting Company (CM&S) built a residential area to house employees. Warfield incorporated as a village in 1952. Fertilizer farm In 1919, CM&S bought a tract of land at Warfield to supply cheap produce for its workers, and show that pollution from the Trail smelter was not as significant as critics claimed, but the farm proved the converse. Following the installation of a pollution control device in 1925, the captured dust was taken to a plant built at the farm that converted the material into a variety of fertilizers. By 1931, the company produced hydrogen, nitrogen, ammonia, ammonia sulphate, phosphite and phosphoric acid-based products. By 1941, the Warfield plant output of ordinance-grade ammonium nitrate was directed to munitions during World War II. In addition, the US military needed heavy water for the Manhattan Project. The only two sources in the world were Vemork, Norway, under German occupation, and Trail, where electrolytic hydrogen was a by-product of the CM&S sulfur recovery process. CM&S was directed by the federal government to build a heavy water plant at Warfield, which was funded by the US, and operated from 1943 to 1956. A 14-storey concrete building in the midst of the fertilizer complex has evidenced the strategic project. Rossland CP line In 1896, Warfield was one of two intermediate stations opened. In 1966, Canadian Pacific Railway (CP) abandoned the Rossland spur west of Warfield. Demographics In the 2021 Census of Population conducted by Statistics Canada, Warfield had a population of 1,753 living in 798 of its 828 total private dwellings, a change of from its 2016 population of 1,680. With a land area of , it had a population density of in 2021. Government On the provincial level, Warfield is a part of the electoral district of Kootenay West (provincial electoral district). The riding, which has traditionally voted for the British Columbia New Democratic Party, is currently represented by NDP MLA Katrine Conroy. In the House of Commons of Canada, Warfield is represented in the electoral district of South Okanagan—West Kootenay.