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Measurement of Lifespan in Drosophila melanogaster

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The Relationship Between Zoning Policies, Racialized Economic Segregation and Life Expectancy Across Census Tracts in

Julia Asfour¹, Linka Wintersteen¹, Abbi Edmiaston¹

¹Department of Public Health and Community Medicine, Tufts University School of Medicine, 136 Harrison Avenue, Boston, MA, 02111, USA.

Journal of Racial and Ethnic Health Disparities

|December 17, 2025

Summary

Municipal zoning policies significantly impact life expectancy by influencing racialized economic advantage. Both historical and current exclusionary zoning practices are linked to present-day health disparities, suggesting zoning reform can promote health equity.

Keywords:

Life expectancy Mortgage lending discrimination Racial segregation Redlining Structural racism Zoning policy

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Using the Race Model Inequality to Quantify Behavioral Multisensory Integration Effects

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Published on: May 10, 2019

Area of Science:

Urban planning and public health
Health equity research
Socioeconomic determinants of health

Background:

Racial segregation, driven by municipal zoning, causes health disparities.
Exclusionary zoning limits access to advantaged neighborhoods for minority and low-income populations.
The link between zoning policies and health outcomes requires further investigation.

Purpose of the Study:

To examine the relationship between Chicago zoning policies (1923 and 2012) and life expectancy inequities.
To identify mediators, such as racialized economic advantage, in the zoning-health relationship.
To assess the impact of historical and contemporary zoning on current health outcomes.

Main Methods:

Analysis of zoning data and life expectancy across Chicago census tracts.
Regression analysis to determine the relationship between zoning and life expectancy.
Structural equation modeling to explore mediating factors like racialized economic advantage.

Main Results:

Life expectancy varied significantly across Chicago census tracts (59.9 to 90.0 years).
Racialized economic advantage was the strongest predictor of life expectancy differences.
Zoning policies in 1923 and 2012 were significantly associated with life expectancy, mediated by economic advantage.

Conclusions:

Zoning policy is a significant determinant of life expectancy, mediated by racialized economic advantage.
Past and present exclusionary zoning policies correlate with current health disparities.
Zoning reform, focused on reducing concentrated advantage and supporting Black wealth-building, may improve health equity.