This study evaluates the association between distance to care and the abortion rate, adjusting for abortion demand. METHODS : Two analyses were conducted using a data set linking provider locations and 2000-2014 county-level abortion data for 18 states; data sources included the Census Bureau, state vital statistics offi ces and the Guttmacher Institute. First, a series of linear regression models were run, with and without adjustment for demographic covariates, modeling distance as both a continuous and a categorical variable. Then, an instrumental variable analysis was conducted in which being 30 or more miles from a large college-enrolled female population younger than age 25 was used as an instrument for distance to a provider. The outcome variable for all models was abortions per 1,000 women aged 25 or older. All models were adjusted for state, year and state-year interaction fi xed eff ects. RESULTS : Increased distance to a provider was associated with a decreased abortion rate. Each additional mile to a provider was associated with a decrease of 0.011 in the abortion rate. Compared with being within 30 miles of a provider, being between 30 and 90 miles from a provider was associated with 0.80-1.46 fewer abortions per 1,000 women. In the instrumental variable analysis, being 30 or more miles from a provider was associated with 5.26 fewer abortions per 1,000 women.