Introduction: The mental health effects of the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) and the Coronavirus disease 2019 (COVID-19) pandemic on postpartum women is of increasing concern among mental health practitioners. To date only a handful of studies have explored the impact of the pandemic during pregnancy and none have attempted explore the impact of pandemic related social restrictions on postpartum mood.Methods: Postpartum patients appearing to the Mount Sinai Health System for their postpartum appointment between January 2, 2020 and June 30, 2020, corresponding to before and during pandemic imposed social restrictions, were screened for mood symptomatology using the Edinburgh Postnatal Depression Scale (EPDS). Each patient’s socioeconomic status (SES; high/low) was determined by their location of clinical service.Results: 516 postpartum patients were screened. While no differences in EPDS scores were observed by SES prior to social restrictions (t(262)=0.23, p=.82), a significant change in mood symptomatology was observed following COVID-19 restrictions (t(288)=2.32, p<.02), with patients living in lower SES reporting significantly less depression symptomatology (t(321)=4.07, p<.01). There was no change in symptomatology among patients of higher SES (t(191)=0.59, p=0.56).Discussion: Postpartum depression, the most common complication of childbearing, is a prevalent, cross-cultural disorder with significant morbidity. The observed differences in postpartum mood between patients of different SES in the context of temporarily imposed COVID-19 related social restrictions present a unique opportunity to better understand the specific health and social support needs of postpartum patients living in urban poverty. Given that maternal mental illness has negative long-term developmental implications for the offspring, and that poor mental health reinforces the poverty cycle, future policy specifically directed towards supporting urban postpartum women living in low-SES by ameliorating some of the early maternal mental health burdens associated with balancing employment-family-childcare demands may assist in interrupting this cycle while simultaneously improving the long-term outcomes of their offspring.