IntroductionDespite the decrease in maternal mortality ratio, many women in Bangladesh are still at high-risk of death due to pregnancy-related morbidities. Increasing the rate of skilled maternal healthcare service utilization is effective to reduce maternal mortality rate. This paper examines the intervention effect of an integrated community-based maternal healthcare project implemented by a non-government organization, Friendship, aiming to provide maternal health services to women living in the remote riverine regions of Bangladesh. MethodsWe examined the skilled maternal healthcare service utilization before and after project implementation of the mothers with birth experience of 0–6 months from the intervention (N = 1,304) and comparison areas (N = 1,304). A difference-in-differences logistic model measured the effect of the intervention. ResultsAfter the intervention, mothers were three times more likely to receive ≥ 4 ANC visits from skilled providers (AOR: 2.9; 95 % CI: 2.1–4.2), 1.5 times more likely to have skilled birth attendants during deliveries (AOR: 1.5; 95 % CI: 1.1–2.1) and 1.5 times more likely to seek at least one PNC within 42 days after delivery (AOR: 1.5; 95 % CI: 1.1–2.2) as compared to the comparison group. ConclusionThe intervention showed positive effect on improving the ANC coverage, skilled delivery, and PNC among the mothers residing the remote riverine areas. Therefore, it opens up the opportunity for adaptation of such integrated community and facility-based interventions by other LMICs.