Sundown Town History Linked to Higher Racial Bias
A new study reveals that U.S. counties with a history of sundown towns show higher levels of contemporary racial bias.
Updated on Oct. 26, 2026 in Social Sciences
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Researchers have found that U.S. counties with a history of sundown towns exhibit significantly higher levels of both implicit and explicit racial bias. The study highlights the lasting impact of historical segregation policies on modern-day societal attitudes.
Why it matters
The findings suggest that the legacy of exclusionary practices like sundown towns continues to shape contemporary social interactions and racial prejudice. This research underscores how historical patterns of discrimination can persist through generations.
Researchers analyzed implicit and explicit bias data from 1.3 million White participants collected by Project Implicit between 2002 and 2024. The study compared these findings across counties with a history of sundown towns versus those without.
The players
Arizona State University
This public research university is located in a former sundown town.
University of Oklahoma
This public research university is located in a former sundown town.
Project Implicit
This non-profit organization provides the data used by researchers to study implicit social cognition and racial bias.
The details
Researchers determined that communities historically known as sundown towns—which excluded African Americans after dark—exhibit a clear correlation with modern racial prejudice. This pattern is attributed to historical legacies including discriminatory policing, restrictive laws, limited interracial contact, and violence.
Timeline
Most historic sundown towns emerged between 1890 and 1968.
Project Implicit data was collected between 2002 and 2024.
The Big Picture
This research follows a pattern set by the legacy of Jim Crow-era segregation policies, demonstrating how historical exclusion shapes modern social structures. It shifts the discipline by empirically linking local historical records to contemporary measures of psychological bias.
Understanding these historical correlations helps residents and local leaders recognize the roots of existing social tensions within their own counties. This awareness can inform community initiatives aimed at improving interracial contact and addressing the long-term impacts of discriminatory history.
The takeaway
The study demonstrates that local historical context remains a powerful predictor of contemporary attitudes. Citizens can work toward social progress by examining their own county history and promoting inclusive community practices.
Further reading
Explore more sociological research in the Social Sciences section.
Source note: This article includes information reported by The Journal of Blacks in Higher Education.
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