Determinations of starch content have been made on 140 samples representing the principal grades of wheat passing through the larger inspection offices in Western Canada during the first five months of 1942–43 crop year and the whole of each of the three preceding crop years. The analytical method employed was Clendenning's modification of the Mannich–Lenz procedure, and the standard error of the mean of duplicate determinations was 0.17. The mean starch content for all samples was 52.5% on a 13.5% moisture basis (60.7%, dry basis); the maximum value was 56.2% and the minimum 48.2%. The Garnet grades and No. 5 wheat were high in starch content. Durum and Alberta winter wheats were also high in starch, particularly in 1942. Grades 1 to 4 Northern, which comprise the bulk of the wheat marketed in Western Canada, had an average starch content of 52.5%; but the starch levels for these grades at Edmonton were consistently higher at 53.5 to 54.5%.