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In Maryland's twenty-three counties and Baltimore City, each local governing body designates an Area Agency on Aging or AAA. The agency may be a unit of local government or a private, nonprofit corporation. In some counties, it is the office on aging. In others, it may be named differently. In Baltimore City, it is called the Division on Aging and Care Services. 

Local agencies on aging provide a variety of adult services, incorporating assisted living, protective services, and temporary disability programs. Transportation services for seniors and people with disabilities are also provided at the county level through either a division of the aging department or by a separate transportation department.  

Want to learn more about Area Agencies on Aging (AAAs)? Check out this "Local Leaders in Aging and Community Living" guide by the National Association of Area Agencies on Aging .


Allegany County


​Allegany County Human Resources Development Commission 

125 Virginia Avenue Cumberland, MD 21502 

Phone: 301-777-5970 

Anne Arundel County


​Anne Arundel County Department of Aging and Disabilities

2666 Riva Road Annapolis, MD 21401

Phone: 410-222-4464

Baltimore City


​Baltimore City Division of Aging and Care Services

417 E. Fayette St., 6th Floor Baltimore, MD 21202

Phone: 410-396-4932

Baltimore County


​Baltimore County Department of Aging 

611 Central Avenue Towson, MD 21204 

Phone: 410-887-2109

Calvert County

Calvert County Office on Aging

450 West Dares Beach Road Prince Frederick, MD 20678

Phone: 410-535-4606 ext. 123

Caroline, Kent, & Talbot Counties


​Upper Shore Aging 

100 Schauber Road Chestertown, MD 21620

Phone: 410-778-6000

Carroll County


​Carroll County Bureau of Aging and Disabilities

125 Stoner Avenue Westminster, MD 21157

Phone: 410-386-3800

Cecil County


​Cecil County Department of Community Services

200 Chesapeake Boulevard, Suite 2550 Elkton, MD 21921

Phone: 410-996-5295

Charles County


​Charles County Aging and Human Services

8190 Port Tobacco Road Port Tobacco, MD 20677

Phone: 301-934-9305

Dorchester, Somerset, Wicomico, and Worcester Counties


​MAC, Inc.

909 Progress Circle Salisbury, MD 21804

Phone: 410-742-0505 ext. 102

Frederick County

Frederick County Department of Aging

1440 Taney Avenue Frederick, MD 21702

Phone: 301-600-1605

Garrett County


​Garrett County Area Agency on Aging

104 East Center Street Oakland, MD 21550

Phone: 301-334-9431

Harford County


​Harford County Office on Aging

145 North Hickory Avenue Bel Air, MD 21014

Phone: 410-638-3025

Howard County


​Howard County Office on Aging and Independence

6751 Columbia Gateway Drive, 2nd Floor Columbia, MD 21046

Phone: 410-313-6410

Montgomery County


​Montgomery County Department of Health and Human Services

401 Hungerford Drive, 3rd Floor Rockville, MD 20850

Phone: 240-777-3000

Prince George's County


​Prince George’s Department of Family Services

6420 Allentown Road Camp Springs, MD 20748

Phone: 301-265-8450

Queen Anne's County


​Queen Anne’s County Area Agency on Aging

104 Powell Street Centerville, MD 21617

Phone: 410-758-0848 ext. 2700

St. Mary's County


​St. Mary’s County Department of Aging & Human Services

41780 Baldridge Street Leonardtown, MD 20650

Phone: 301-475-4200 ext. 1070

Washington County


​Washington County Commission on Aging

535 E. Franklin Street, Hagerstown, MD 21740

Phone: 301-790-0275 ext. 203