Human Service Agency
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123 19th Street NE, Watertown, SD (605) 886-0123
A Timeline of HSA
1962
The Human Service Agency began as Lake Region Mental Health Center.
1974
The corporation became the Human Service Agency as new programs were added including Alcohol and Drug Treatment and New Horizons.
1992
Al Wylie, executive director of HSA since its inception, retired and was replaced by Dr. Charles Sherman, the current CEO.
1997
Serenity Hills Halfway House and Detox Center opens,the first dual-diagnosis facility of its kind in SD.
2011
HSA opens a Safe Room as an alternative to a jail setting for those in a mental health crisis. This was the first in a free standing facility in SD.
2016
New Horizons develops a Conflict Free Case Management (CFCM) program serving Brookings, Madison, and Aberdeen.
2017
The Human Service Agency offers services to over 2700 individuals a year in Watertown, Sisseton, and Milbank.
2019
Dr. Charles Sherman retired after 27 years at HSA and was replaced by Kari Johnston as the new CEO
Our Mission
The mission of the Human Service Agency is to provide high quality human services that enable people to develop their fullest potential while maintaining the highest standard of ethical and fiscal responsibility.
Administrators

CEO Kari Johnston
The Human Service Agency employs a diverse, highly qualified work force. In accordance with the Human Service Agency's commitment to developing an emotionally strong community, staff members are actively involved with civic organizations and local task forces that require professional input and feedback. This personal involvement enables the Human Service Agency to gain insight and perspective with the social issues that may affect individual lives.
Senior Administrative Staff Members:
Kari JohnstonChief Executive Officer
Michelle SpiesChief Financial Officer
Jodie MarotzChief Operating Officer, New Horizons
Human Service Agency Locations
Watertown
123 19th Street NE in Watertown, SD, 57201
Hours: Monday-Thursday 8 AM-5 PM, Fridays 8 AM-5 PM
Phone: 605-886-0123
Fax Number - 605-886-5447
Sisseton
301 Veteran's Ave, Sisseton, SD, 57262
Phone: 605-698-7688
Milbank
201 South 5th Street, Milbank, SD, 57253
Phone: 605-886-0123
Serenity Hills Halfway House/Detox
1526 Hwy 20 NW, Watertown, SD 57201
Conflict Free Case Management Services
1812 6th Ave SE, Suite 2, Aberdeen 57401
525 8th St Suite 1, Brookings SD 57006
118 W. Center, Suite #1, Madison, SD 57042