INTRODUCTION: Access to maternity care (MC) and providers are important factors for contraception access and health outcomes for pregnant-capable individuals. After a series of hospital closures in Tennessee in the last decade, this study investigated the relationship between maternal county of residence and short-interval birth (SIB) rates statewide. METHODS: Tennessee birth certificate data for 2015–2020 from the Tennessee Department of Health was coded using March of Dimes 2022 definitions of access to MC overall, a hospital with obstetric (OB) care or birth center, and an OB provider (per 10k births) based on maternal county of residence. Short-interval birth was defined as birth interval 6–23 months. Nulliparous births and those with missing last living birth interval were excluded. Analysis was completed in SPSS 29.0, and Pearson χ2 tests compared SIB proportions between MC access groups. RESULTS: Overall, 269,908 births were analyzed. Of these, 78.1% maternal counties of residence had full MC access, 13.9% had low access, and 8.0% resided in a MC desert. Short-interval births were highest (24.4%; CI, 23.8–25.0) in MC deserts followed by areas with full access (23.7%; CI, 23.5–23.9) and low access (22.4%; CI, 22.0–22.8) (P<.001). Those with no access to an OB provider had highest rates of SIB (24.3%: CI, 23.7–24.8) compared to other categories (P<.001). CONCLUSION: Lacking access to maternity care likely corresponds with lacking access to contraception and higher rates of SIB in Tennessee. Prenatal and postpartum contraception counseling are important components of care for all individuals but especially those without acceptable access to OB providers and hospitals.