Abstract: Introduction: The limits of the Community Health (CH) course load (CL) before medical clerkship (MC) in undergraduate medical courses are not defined neither in the National Curriculum Guidelines nor in other documents, and have not been investigated in a comprehensive way in national studies. Objective: To analyze the community health course load before clerkship in Brazilian medical schools. Method: Cross-sectional study of schools acknowledged by the Ministry of Education, which started activities until December 31, 2017. The sites of the 323 existing schools were accessed and the schools that had their curricula available in the internet with details of the CH CL before MC were included. The variables were school geographic region and administration type, medical course CL and CH CL before MC, also including epidemiology, biostatistics and occupational health course loads. Data were analyzed using descriptive statistics, Pearson chi-square (Ӽ2) for categorical variables and Mann-Whitney-U (U) and Kruskal Wallis Ӽ2 tests for continuous variables. Results: Out of 323 existing medical schools, 222 were included (68.7%). Among the included schools, 83 were tuition-free (37.4%) and 139 were not (62.6%). The median of the CH CL before MC was 440.0 hours (P25-75 = 300.0 - 640.0), equivalent to 5.4% (P25-75 = 3.5 - 7.8) of the medical course CL. The median of the CH CL before MC in hours in private and municipal schools was, respectively, 480.0 (P25-75 = 330.7 - 679.2) and 576.0 (P25-75 = 360.0 - 766.0), and of state and federal schools, respectively, 337.0 (P25-75 = 281.2 - 524.2) and 370.0 (P25-75 = 300.0 - 480.0), Ӽ2(3) = 11.48, p = .009. The median of the total CH CL in non-tuition-free schools was 500.0 hours (P25-75 = 336.0 - 690.0) and in the tuition-free schools, it was 364.0 hours (P25-75 = 285.0 - 504.0), U = 4.259.0, z = -3.26, p = .001. The median of epidemiology and biostatistics CL in hours before MC in the 124 schools was 88.0 (P25-75 = 60.0 - 120.0), whereas the occupational health CL in 63 schools was 40.0 (P25-75 = 33.0 - 60.0). Conclusions: The CH CL before clerkship varies widely, being higher in non-tuition-free medical schools.