Mortality data obtained from the Mortality Information System identified a total of 19,499 deaths in women caused by corpus uteri cancer in Brazil. However, the association between mortality and sociodemographic factors in these women is not fully understood. A study based on the secondary data on deaths caused by corpus uteri cancer recorded in the SIM-DATASUS was conducted. Deaths reported from 1996 to 2016 in the health information system were included. Sociodemographic factors were analysed to determine their association with mortality. Low schooling is highly associated with mortality in all administrative regions. Advanced age, race and marital status have specific association with mortality for the different geographic regions. Black, Brown and Indigenous women with low schooling and of advanced age are highly associated with mortality. Brown, White and Black women of advanced age had the highest corpus uteri cancer related mortality rates. Women with low schooling who died of corpus uteri cancer were either single or widows. The marital status of Black, White and Brown women aged <59 years was single. The sociodemographic factors that predict mortality in women with corpus uteri cancer in Brazil were presented and can be used to guide public health.