Ontario Marginalization Index (ON-Marg)
ON-Marg is a data tool that combines a wide range of demographic indicators into four distinct dimensions of marginalization. As a multifaceted index, ON-Marg measures multiple axes of deprivation in Ontario, including economic, ethno-racial, age-based, and social marginalization. It can be used for:
population health assessments
resource allocations and program planning
assessing health inequities
ON-Marg data is now available for 2001, 2006 and 2011, making it possible to track changes in marginalization and health equity over time. The 2011update to ON-Marg combines data from several sources including: including Statistics Canada Taxfiler data, Municipal Property Assessment Corporation data, the Registered Persons Database, and the Immigration Refugees, Citizenship Canada (IRCC) Permanent Resident Database.
Data is available at the small area level as well as larger geographies such as public health units and Local Health Integration Networks (LHINs).
The 2011 update to ON-Marg was created in partnership with researchers from the Centre for Urban Health Solutions at St. Michael's Hospital.
Outlines everything you need to know about using ON-Marg for completing your own analyses.
View the user guide »
Background information on ON-Marg methodology, data sources and how the different dimensions were calculated.
View the technical document »
Frequently Asked Questions
References the most common questions asked to help you use ON-Marg.
View the FAQs »
Social Determinants of Health Map
The updated 2011 ON-Marg data is now included in our Social Determinants of Health (SDOH) Map, an interactive tool that shows the distribution of SDOH indicators across the province, LHINs and public health units.
View SDOH Map »
About our Partners
The 2011 update to ON-Marg was jointly published with the Centre for Urban Health Solutions, an inter-disciplinary research centre within St. Michael’s Hospital in Toronto. The Centre seeks to improve health in cities, especially for those experiencing marginalization, and to reduce barriers to accessing factors essential to health, such as appropriate health care and quality housing.