Background: Mental health impacts of the COVID-19 pandemic are well recognized, but little is known about the pandemic experience among people experiencing mental health symptoms. Methods: In June 2020, a national sample of 5023 U.S. adults, including 785 scoring ⩾10 on the PHQ-8 for symptoms of depression, completed survey measures related to their pandemic experience. Results: After adjusting for sociodemographic characteristics, aspects of the COVID-19 pandemic experience for which participants scoring PHQ-8 ⩾ 10 had the greatest increase in odds of reporting moderate/severe negative impacts included: mental health treatment access (odds ratio [OR], 95% confidence interval [CI] = 8.81, 6.70-11.57), family stress/discord (OR, 95% CI = 5.21, 4.24-6.42), food access (OR, 95% CI = 3.76, 2.97-4.77), and income/employment (OR, 95% CI = 3.19, 2.66-3.83). They were also significantly more likely to report increased use of prescription painkillers (OR, 95% CI = 8.46, 4.50-15.92) and other drugs (OR, 95% CI = 4.43, 2.85-6.89), and less trust in healthcare authorities/providers, family/friends, and employers, and more trust in websites/blogs/social media, for COVID-19 information ( P -values