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Tribal delinquency jurisdiction, 2016

  • State (mandatory)

  • State (other)

  • Federal

  • Not applicable

Iowa is an optional P.L. 280 state, which added state civil jurisdiction to existing criminal jurisdiction. See IA § 1.12, et seq.

Monitoring data

  • N/A: Insufficient data to compute arrest rates
  • * Rates used to compute ratio based on fewer than 10 observations
  • † White detained rate is 0

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Indicator data, 2017


Report: DMC Matrices 2014-2015
Author: Iowa Department of Human Rights
Tracks RRIs 2014–2015
Geography: Statewide and county

Points of contact

Stages during the juvenile justice process tracked for relative rate indicators (RRIs).

Probation Confinement Adjudication Transfer Diversion Petitioned Detention Referred to court Arrest

Race reported

  • White

  • All minorities (as a group)

  • Black / African American

  • Hispanic/Latino

  • Asian

  • American Indian / Alaska Native

  • Native Hawaiian / Pacific Islander

  • Other / Mixed


The Iowa Division of Criminal and Juvenile Justice Planning publishes data on Disproportionate Minority Contact (DMC). Iowa reports Relative Rate Indices (RRI) for all 9 recommended decision points and 4 populations. Rates are reported for local jurisdictions (Black Hawk, Johnson, Polk, and Woodbury Counties) and statewide. It is unclear if race and ethnicity are reported as separate variables.

DMC assessment

Report: Race and Detention Decision Making and the Impact on Juvenile Court Outcomes in Black Hawk County, Iowa
Author: Black Hawk Juvenile Court Services and the State of Iowa Division of Criminal and Juvenile Justice Planning
Year: 2007

DMC assessment Geography: Local

  • Interviews

  • Surveys

  • Focus groups

  • Multivariate analysis

  • Descriptive statistics

The Black Hawk Juvenile Court Services and the State of Iowa Division of Criminal and Juvenile Justice Planning completed an assessment in 2007 for Black Hawk County. Data was assessed for 2003 to 2004 for African American for detention. Research methods included multivariate analysis and descriptive statistics.

DMC coordinators

DMC coordinator 2012 2015 2016
Full-time state-level DMC coordinator
Part-time or other state-level staff

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About this project

Juvenile Justice GPS (Geography, Policy, Practice, Statistics) is a project to develop a repository providing state policy makers and system stakeholders with a clear understanding of the juvenile justice landscape in the states.

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