BACKGROUND: Reducing maternal mortality ratio (MMR) is a high priority public health issue in developing countries such as Indonesia. The current MMR in Indonesia is 126/100,000 live births. Optimum use of available healthcare facilities for delivery can avert maternal deaths. This study aimed to determine the factors associated with healthcare facility utilization for childbirth in Kuantan Singingi regency, Riau province, Indonesia 2017. METHODS: We conducted a community-based cross-sectional study in 15 sub-districts of Kuantan Singingi regency from May-June 2017. We selected 320 mothers from 15 sub-districts who delivered in the last 3 months (February-April 2017). Trained data enumerators collected the relevant data by using a pre-tested semi-structured questionnaire. We used Cox regression analysis to determine the factors associated with delivery at healthcare facilities. Prevalence Ratio (PR) with a 95% confidence interval (CI) for childbirth at healthcare facilities was the key outcome measure. RESULTS: Only 54.4% (174) of the 320 mothers delivered at healthcare facilities. Knowledge about pregnancy danger signs (PR = 1.59, 95%CI:1.15-2.2), attitude towards healthcare services (PR = 0.79, 95%CI:0.33-1.89), and access to health care services (PR = 0.39, 95%CI:0.18-0.84) were the dominant factors of childbirth at healthcare facilities. There was an interaction between attitude and access to healthcare influencing delivery at healthcare facilities. CONCLUSIONS: Utilization of healthcare facilities for childbirth was low in Kuantan Singingi regency. Knowledge of pregnancy danger signs was an independent correlate of childbirth at healthcare facilities. Also, the interaction between attitude and access to healthcare showed a significant influence on childbirth at healthcare facilities. We recommend strengthening of existing maternal and child health program with a particular emphasis on complete and quality antenatal care, health education on danger signs of pregnancy and childbirth, and promoting positive attitudes towards healthcare facilities.