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The Maryland Association of County Administrative Officers is one of MACo's first affiliate organizations. MACo has added one sub-affiliate to this group: the County Information Technology Directors. The Affiliate's mission is to provide a network for county leaders to ensure that the highest quality programs and procedures are being utilized in Maryland's counties.

The Affiliate elects officers at the MACo Winter Conference and its officers serve a one year term. Several events are held annually, including at both the MACo Winter Conference and the MACo Summer Conference, and at the annual Fall Administrators and Attorneys Conference. Many County Administrators are also members of the International City Managers Association.

Affiliate Membership

Gregg A. Todd
Affiliate President
County Administrator
Queen Anne's County
107 North Liberty Street
Centreville, MD 21617
Phone: 410.758.4098
Fax: 410.758.1170

David A. Eberly

County Administrator
Allegany County
701 Kelly Road
Cumberland, MD 21502
Phone: 301.777.5912
Fax: 301.777.5819

Mark Hartzell
Chief Administrative Officer
Anne Arundel County
44 Calvert Street
Annapolis, MD 21404
Phone: 410.222.1312

Diane Croghan

Chief of Staff, County Executive
Anne Arundel County
44 Calvert Street
Annapolis, MD 21404
Phone: 410.222.1821
Fax: 410.222.1155
Kaliope Parthemos
Chief of Staff
Baltimore City
100 North Holliday Street
Baltimore, MD 21202
Phone: 410.545.7989

Fred Homan
Administrative Officer
Baltimore County
400 Washington Avenue
Towson, MD 21204
Phone: 410.887.2460
Fax: 410.887.2450

Terry L. Shannon
County Administrator
Calvert County
175 Main Street
Prince Frederick, MD 20678
Phone: 410.535.1600 x2200
Fax: 410.535.5594

Ken Decker
County Administrator
Caroline County
109 Market Street, Room 123
Denton, MD 21629
Phone: 410.479.0660
Fax: 410.479.4060

Roberta Windham, Esq.
County Administrator
Carroll County
225 N. Center Street
Westminster, MD 21157
Phone: 410.386.2876

Alfred C. Wein Jr.

Director of Administration
Cecil County
200 Chesapeake Blvd, Suite 2100
Elkton, MD 21921
Phone: 410.996.8300
Fax: 410.996.1014

Michael Mallinoff

County Administrator
Charles County
200 Baltimore Street
POB 2150
LaPlata, MD 20646
Phone: 301.645.0553
Fax: 301.645.0544

Jeremy Goldman

Acting County Manager
Dorchester County
501 Court Lane
Cambridge, MD 21613
Phone: 410.228.1700
Fax: 410.228.9641

W. Paul Dial
Acting Chief Administrative Officer
Frederick County
12 E. Church Street
Frederick, MD 21701
Phone: 301.600.1652

Kevin Null

County Administrator
Garrett County
203 South Fourth Street, Room 207
Oakland, MD 21550
Phone: 301.334.8970
Fax: 301.334.5000

Billy Boniface
Director Of Administration
Harford County
220 S. Main Street
Bel Air, MD 21014
Phone: 410.638.3210
Fax: 410.638.1387

Lonnie R. Robbins
Chief Administrative Officer
Howard County
3430 Courthouse Drive
Ellicott City, MD 21043
Phone: 410.313.2020
Fax: 410.313.3051

Shelley Herman

County Administrator
Kent County
400 High Street
Chestertown, MD 21620
Phone: 410.778.4600
Fax: 410.778.7482

Timothy L. Firestine
Chief Administrative Officer
Montgomery County
101 Monroe Street
Rockville, MD 20850
Phone: 240.777.2519
Fax: 240.777.2518

Nicholas Majett

Chief Administrative Officer
Prince George's County
14741 Governor Oden Bowie Drive, Room 5032
Upper Marlboro, MD 20772
Phone: 301.952.4757
Fax: 301.952.3784

Rebecca Bridgett
County Administrator
St. Mary's County
41770 Baldridge Street
POB 653
Leonardtown, MD 20650
Phone: 301.475.4200 x1321
Fax: 301.475.4935

Ralph D. Taylor
County Administrator
Somerset County
11916 Somerset Avenue, Room 111
Princess Anne, MD 21853
Phone: 410.651.0320

Andy Hollis
County Manager
Talbot County
11 N. Washington Street
Easton, MD 21601
Phone: 410.770.8010
Fax: 410.770.8007

Gregory B. Murray

County Administrator
Washington County
100 W. Washington Street, Room 226
Hagerstown, MD 21740
Phone: 240.313.2202
Fax: 240.313.2201

Wayne Strausburg

Director Of Administration
Wicomico County
125 N. Division Street
POB 870
Salisbury, MD 21803
Phone: 410.548.4801

Harold Higgins
Chief Administrative Officer
Worcester County
One West Market Street, Room 1103
Snow Hill, MD 21863-1072
Phone: 410.632.1194
Fax: 410.632.3131