The data abortionscounts_countyxyear, uploaded to OSF in Stata and CSV formats, is a panel of United States county-by-month resident abortion counts. These data were prepared and published by Caitlin Myers at Middlebury College for academic research purposes. Please cite these data using the indicated citation at OSF: Caitlin Myers. ([Year Accessed]). County-by-month resident abortion counts, Vintage [Vintage of data download]. If you believe you have found an error or have questions about the data, please contact Caitlin Myers at cmyers@middlebury.edu. These data were collected from reports published by state health departments providing county-level resident abortion counts for any year in the period 2009-2022. They are an incomplete and unbalanced panel because not all states surveil abortions, and among those that do not all states record and publish county of residents of abortion patients. In addition, while some states track residents’ abortions in neighbouring states through reciprocal reporting agreements, most do not and their resident abortion counts reflect only abortions occurring in state. Users should note these critical features of the data and assess their implications for their own research purposes. The User's Guide and Codebook contains more information, including a list of availability by state.