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Human Service Agency

123 19th Street NE, Watertown, SD (605) 886-0123

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.


Kari Johnston

Executive Director 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 Johnston
Executive Director

Michelle Spies
Chief Financial Officer

Jodie Marotz
Chief Operating Officer, New Horizons

HSA Board of Directors

June 30, 2021 Financial Report

Form 990 7/2019 to 6/2020


The Human Service Agency began as Lake Region Mental Health Center.


The corporation became the Human Service Agency as new programs were added including Alcohol and Drug Treatment and New Horizons.


Al Wylie, executive director of HSA since its inception, retired and was replaced by Dr. Charles Sherman.


Serenity Hills Halfway House and Detox Center opens,the first dual-diagnosis facility of its kind in SD.


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.


New Horizons develops a Conflict Free Case Management (CFCM) program serving Brookings, Madison, and Aberdeen.


The Human Service Agency offers services to over 2700 individuals a year in Watertown, Sisseton, and Milbank.


Dr. Charles Sherman retired after 27 years at HSA and was replaced by Kari Johnston as the new CEO

Human Service Agency Locations


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


301 Veteran's Ave, Sisseton, SD, 57262

Phone: 605-698-7688


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