Black women in the US are more likely to experience unintended and short-interval pregnancies, which are associated with increased risk of adverse birth outcomes for mothers and infants. Long-acting reversible contraception (LARC), including the placement of intrauterine devices (IUDs) or implants, is the most effective contraceptive method for reducing unintended and short-interval pregnancies; however, Black women are far less likely than White women to use LARC. Immediate postpartum LARC placement (after the birth of an infant, but prior to hospital discharge) addresses many barriers to LARC use and is far less costly than other LARC placement options. Little is known about the impact of patient race on immediate postpartum LARC. I will use quantitative methods to examine the relationship between race and hospital factors on racial differences in immediate postpartum LARC. I will supplement those findings with qualitative studies to better understand patient and provider perceptions and knowledge of immediate postpartum LARC. The results from my dissertation can inform policies and practices associated with immediate postpartum LARC, helping ensure more equitable access to this effective service for all women who desire it.