Military personnel who are legal residents of Maryland should fill in the lines for your Maryland physical address, including political subdivision lines, based on the Maryland physical address that is used for claiming Maryland as your Home of Record on file with the Defense Finance and Accounting Service for tax year 2019.
From page 3, https://www.marylandtaxes.gov/forms/19_forms/resident_booklet.pdf
**Answers are correct to the best of my ability but do not constitute tax or legal advice.