 The racial makeup of Grimes was 284 (72.6%) White, 7 (1.8%) African American, 3 (0.8%) Native American, 1 (0.3%) Asian, 0 (0.0%) Pacific Islander, 65 (16.6%) from other races, and 31 (7.9%) from two or more races.Hispanic or Latino of any race were 258 persons (66.0%).The Census reported that 391 people (100% of the population) lived in households, 0 (0%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized.