1993

• September 3, 1993
  The Commission was formed and a 28E Agreement was adopted. Original member counties included Story, Boone, Hardin, Hamilton, Webster, and Calhoun

1994

• February 3, 1994 
  A temporary sight was opened at the State Training School in
  Cooper Hall with five available beds
  
• February 4, 1994
  Marshall County was added as the 7th Member County
  
• March 14, 1994
  Moved to a seven bed facility on the grounds of the State Training School on the north side of HWY 175 in the west wing of the building
  
• July 1, 1994
  Expanded to 10 beds
  

1995

• July 7, 1995
  Winnebago County was added as the 8th Member County

1996

• April 1, 1996
  Expanded to 15 beds

1997

• December 1, 1997
   Expanded to 20 beds

1998

• September 1, 1998
  Began juvenile transportation

1999

• June 11, 1999 
  Greene County was added as the 9th Member County

2000

• January 7, 2000
  Tama County was added as the 10th Member County

2001

• February 2, 2001
   Poweshiek County was added as the 11th Member County
• December 14, 2001
  Jasper and Hancock were added as the 12th & 13th Member Counties

2002

• January 11, 2002
   Humboldt County was added as the 14th Member County
• July 12, 2002
  Kossuth County was added as the 15th Member County

2003

• July 1, 2003
  Began tracking services for the second judicial district
• November 7, 2003
  Iowa County was added as the 16th Member County

2004

• July 1, 2004 
  Began tracking services for Tama county
• November 12, 2004Hired Durrant as Architect for New Building Project

2005

• 2005
  Planning of New Facility Continues

2006

• April 1, 2006
  Began Providing Family Team Meetings and Flexible Services

2007

• January 12, 2007 
  Dean Snyder Construction was Awarded the Building Project
• March 1, 2007
  Began Fiscal Agent services for Story County
• April 1, 2007 
  Began Fiscal Agent services for Jasper County
• April 1, 2007
  Began Coordination services for Jasper County
• July 1, 2007
  Began tracking services for Benton and Jones Counties

2008

• February 25, 2008
  Began Providing Drug & Alcohol Testing for DHS Ames Service Area
• March 29, 2008
  Opened state of the art 30 bed facility
• July 1, 2008
  Began Providing Drug & Alcohol Testing for Black Hawk County DHS
• December 1, 2008Buena Vista and Palo Alto were added as the 17th & 18th Member Counties

2009

• February 1, 2009
  Began Friday Evening Program in Marshall and Story Counties
• August 25, 2009
  Floyd County was added as the 19th Member County
• September 28, 2009Wright County was added as the 20th Member County

2010

• March 12, 2010
  Clarke, Adams, Madison, Jones, Lucas, Taylor, Ringgold, Wayne, Union, Decatur, Adair and Marion Counties were added as the first 12 Affiliate Counties
• April 9, 2010
  Warren County was added the 13th Affiliate County
• May 14, 2010
  Monroe, Guthrie, Des Moines and Dallas counties were added as the 14th - 17th Affiliate Counties
• June 11, 2010
  Franklin County was added as the 21st Member County
• September 10, 2010 
  Mahaska County was added as the 22nd Member County

2011

• March 11, 2011
  Washington County was added as the 18th Affiliate County
• May 13, 2011
  Appanoose County was added as the 23rd Member County
• July 15, 2011
  Keokuk County was added as the 19th Affiliate County

2012

• May 18, 2012
  Board approved motion to hire an architect to begin the building expansion

• July 20, 2012
  Skott & Anderson Architect firm bid accepted for building project & building committee formed

• October 19, 2012
  Final Plans approved and project set out for contractor bids

2013

• March 13, 2013
  Dean Snyder Construction was awarded general contractor in building expansion. Accurate Controls was awarded security electronics contractor
• June 21, 2013
  Benton County was added as the 24th Member County
• July 1, 2013
  CIJDC was awarded State-wide Drug and Alcohol Testing Contract

2014

• February 16, 2014
  Building Expansion complete

2015

• February 15, 2014
  Emmet County was added as the 25th Member County

• September 21, 2016
  Construction began on 8,600 square foot expansion that includes increased visitation areas, offices, conference room and area for increased mental health services

• January 24, 2017
  Lucas County was added as the 26th Member County
• February 7, 2017
  Crawford County was added as the 27th Member County
• March 6, 2017
  Worth County was added as the 28th Member County
• April 24, 2017
  Dubuque County was added as the 29th Member County
• September 05, 2017
  Construction Completed of new addition

• April 27, 2018
  Sac and Fox Tribe was added as the 19th Affiliate

• April 30, 2018
  Buchanan County was added as the 30th Member County

• June 28, 2019
  Osceola County was added as the 20th Affiliate County

• May 28, 2021
  Mitchell County was added as the 31st Member County

• May 10, 2023
  New Expansion Project Complete - Pod Unit
• October 27, 2023
  Bremer County was added as the 32nd Member County

• May 24, 2024
  Grundy County, Fayette County added as Members and Jones County went from an Affiliate to a member, making 35 Member Counties.