Maryland Department of Assessments and Taxation

Contact Information

St. Mary's County

Michael Degen
Supervisor of Assessments
Carter Building
23110 Leonard Hall Drive, Rm 2059
P.O. Box 1509
Leonardtown, Maryland 20650-0653
Hours: 8:00 to 4:30
(301) 880-2900
FAX: (301) 475-4856
E-mail: sdat.stm@maryland.gov            

Other Information

Local Assessment Offices​​

 St. Mary's County Reassessment Areas

​st. mary's county area map
Area 1
  Assessment Area 1 will be reassessed for January 1, 2022
Area 2
  Assessment Area 2 will be reassessed for January 1, 2023
Area 3
  Assessment Area 3 will be reassessed for January 1, 2024
Maryland Department of Assessments and Taxation
700 E. Pratt St. Suite 2700
Baltimore, MD 21202-6377