Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Objective To evaluate sociodemographic inequalities in the diet quality of the urban population of the city of Campinas, Sao Paulo, Brazil. Methods A population-based, cross-sectional study was performed using data from a health survey conducted in the city of Campinas in 2008-2009. Diet quality was evaluated using the Brazilian Healthy Eating Index Revised. A total of 3,382 individuals aged 10 years old and older were analyzed. Results Brazilian Healthy Eating Index Revised scores increased with age and education level. Women consumed more vegetables, fruits, and milk, and less sodium, meat and eggs, oils, saturated and solid fats, alcohol, and added sugars than men. Scores for whole grains, vegetables, and fruits also increased with age and education level. Conclusion These findings point to sociodemographic segments that are more vulnerable to an inappropriate diet and identify the need of strategies to increase the consumption of whole grains, dark green vegetables, fruits, and milk, and decrease the consumption of sodium, solid fats, alcohol, and added sugar.292151162Conselho Nacional de Desenvolvimento Cientifico e TecnologicoCoordenacao de Aperfeicoamento de Pessoal de Nivel SuperiorConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)