Geography · 9th Grade · Cultural Patterns and Processes · Weeks 10-18

Ethnicity, Race, and Segregation

Distinguishing between ethnicity and race and examining the geography of segregation.

• Common Core State Standards
• C3: D2.Geo.6.9-12
• C3: D2.His.5.9-12

About This Topic

Ethnicity and race are distinct but frequently confused concepts with very different geographic implications. Ethnicity refers to a shared cultural identity -- common language, ancestry, religious practice, customs, and historical memory -- that a group recognizes and maintains over time. Race is a social and political category assigned based primarily on physical appearance, particularly skin color, and has been used throughout US history as the basis for legal classification, economic discrimination, and spatial separation. The US Census Bureau tracks both, using self-identification for ethnicity and a separate question for race, though the categories have changed significantly with each decennial census.

The geography of race and ethnicity in American cities is not accidental -- it is the product of deliberate policy. Redlining, the practice of grading neighborhoods by 'mortgage risk' using racial composition as a primary criterion, was institutionalized by the Federal Housing Administration from the 1930s through the 1960s. Neighborhoods marked red on these maps were denied mortgages and insurance, preventing wealth accumulation through homeownership for generations of Black, Latino, and Asian American families. The spatial patterns created by redlining persist today in measurable ways: health outcomes, school quality, tree canopy coverage, and home values all correlate with historical HOLC map grades.

Ethnic enclaves -- spatially concentrated communities of a shared ethnic background -- serve important social and economic functions for new immigrants: access to familiar goods, languages, networks, and institutions that ease the transition to a new country. Chinatowns, Little Italys, Little Havanas, and Somali neighborhoods in Minneapolis all represent relocation diffusion combined with community-building under conditions of discrimination and cultural distance. Active learning works powerfully here because students can analyze real redline maps of US cities and compare historical patterns to contemporary data.

Key Questions

1. Differentiate how the US Census definition of race differs from other countries.
2. Analyze the lasting geographic impacts of redlining in American cities.
3. Explain how ethnic enclaves provide support for new immigrants.

Learning Objectives

• Compare the US Census Bureau's historical and current definitions of race and ethnicity with those used in at least one other country.
• Analyze primary source documents, such as historical redlining maps, to explain the spatial patterns of segregation in a specific American city.
• Evaluate the long-term geographic consequences of redlining on wealth accumulation and access to resources in urban neighborhoods.
• Explain the role of ethnic enclaves in facilitating the social and economic integration of immigrant populations in the United States.

Before You Start

Cultural Diffusion and Migration Patterns

Why: Understanding how cultural traits spread and how people move is foundational to grasping the formation of ethnic enclaves and the spatial distribution of populations.

Introduction to US Demographics

Why: Students need a basic understanding of population distribution and characteristics to analyze patterns of race, ethnicity, and segregation.

Key Vocabulary

Ethnicity	A shared cultural identity based on common ancestry, language, religion, customs, or historical experiences, which a group recognizes and maintains.
Race	A social and political construct assigned primarily based on physical appearance, historically used for classification and discrimination.
Redlining	A discriminatory practice where services, especially financial ones, are withheld from potential customers who reside in neighborhoods classified as high-risk, often based on racial demographics.
Ethnic Enclave	A geographically concentrated area with a high concentration of residents from a particular ethnic background, offering social and economic support.
Spatial Assimilation	The process by which members of an ethnic or racial group gradually move into different residential areas over time, often influenced by economic and social factors.

Watch Out for These Misconceptions

Common Misconception

Residential segregation in the US today results primarily from individual housing preferences, not policy.

What to Teach Instead

Decades of federal, state, and local policy -- redlining, racially restrictive deed covenants, exclusionary zoning, urban renewal demolition of Black neighborhoods -- created the spatial patterns that persist today. Analyzing historical redline maps alongside contemporary demographic data makes the policy origins of segregation visible as a geographic argument, not just a historical one.

Common Misconception

Race is a biological category with clear, natural boundaries.

What to Teach Instead

Geneticists and anthropologists broadly agree that race has no consistent biological definition -- the genetic variation within racial groups is greater than the variation between them. Race is a socially constructed category whose boundaries have changed repeatedly (Irish, Italian, and Jewish Americans were not always classified as 'white' in the US). Understanding this helps students analyze racial categories as geographic and political instruments rather than natural facts.

Common Misconception

Ethnic enclaves indicate that immigrant communities are refusing to integrate.

What to Teach Instead

Ethnic enclaves often form in response to housing discrimination, economic necessity, and the social value of community support networks -- not as a rejection of integration. Many enclaves are also contested spaces: as neighborhoods gentrify, original residents face displacement pressure regardless of their integration preferences. Case study research helps students see enclaves as responses to structural conditions.

Active Learning Ideas

Map Analysis: Redlining Then and Now

Students compare 1930s HOLC redline maps of a US city (Chicago, Detroit, or a city relevant to the class community) with contemporary maps of median household income, life expectancy, or tree canopy coverage for the same area. Working in pairs, they identify spatial correlations and generate claims about how historical policy continues to shape geography. Class discussion addresses causation versus correlation and the policy implications.

45 min·Pairs

Inquiry Circle: Ethnic Enclaves in the US

Small groups each research one ethnic enclave (Miami's Little Havana, San Francisco's Chinatown, Minneapolis's Somali community, New York's Jackson Heights) and answer: When did this community form? What conditions created it? What economic and social functions does it serve? Has it faced displacement pressure? Groups present findings and the class identifies patterns across different enclave histories.

55 min·Small Groups

Think-Pair-Share: Race vs. Ethnicity

Students read the current US Census Bureau definitions of race and ethnicity, then work individually to answer: Why does the Census ask these as two separate questions? What are the limitations of these categories? Partners compare responses and the class discusses what political and historical forces shaped these definitions and how they have changed over time.

25 min·Pairs

Structured Academic Controversy: Integration Policies

Students evaluate two historical integration interventions -- school busing in Boston and mixed-income housing redevelopment in Chicago's Cabrini-Green -- through competing lenses. Did these policies reduce segregation? Who benefited? Who was harmed? Small groups argue assigned positions before switching sides and working toward a nuanced class position supported by geographic evidence.

50 min·Small Groups

Real-World Connections

• Urban planners and sociologists use historical redlining maps and current demographic data to understand persistent neighborhood inequalities in cities like Chicago and Detroit, informing policies for equitable development.
• Community organizations in areas like New York City's Jackson Heights or Los Angeles' Koreatown work to preserve and support ethnic enclaves, providing resources for language services, cultural events, and small business development.

Assessment Ideas

Exit Ticket

Ask students to write one sentence defining ethnicity and one sentence defining race. Then, have them list one specific geographic consequence of redlining in a US city.

Discussion Prompt

Pose the question: 'How do ethnic enclaves act as both a bridge and a potential barrier for immigrants integrating into a new society?' Facilitate a class discussion where students share examples and perspectives.

Quick Check

Provide students with a short excerpt from a US Census Bureau report on race or ethnicity categories. Ask them to identify one way the census definition differs from a common understanding of the term or from another country's approach.

Frequently Asked Questions

What is the difference between race and ethnicity?

Race is a socially constructed category based primarily on physical characteristics, especially skin color, that has been used as a legal and political classification throughout US history. Ethnicity refers to a shared cultural identity based on common ancestry, language, religion, and customs. The US Census treats them as separate questions. A person might identify as Black (race) and Jamaican-American (ethnicity), or Hispanic (ethnicity) and White (race).

What was redlining and what geographic effects does it still have?

Redlining was a federal mortgage discrimination practice in which neighborhoods with significant Black or immigrant populations were rated 'hazardous' on federal lending maps from the 1930s through the 1960s, making residents ineligible for mortgages and insurance. Spatial patterns created by redlining correlate today with lower home values, worse health outcomes, higher rates of lead exposure, lower tree canopy, and lower school performance.

What functions do ethnic enclaves serve for immigrant communities?

Ethnic enclaves provide access to familiar language, food, religious institutions, employment networks, and cultural practices that help new immigrants navigate an unfamiliar society. They also allow communities to maintain cultural identity while adapting to a new country. Economically, enclaves often develop local business networks that create employment and capital for community members who face discrimination in mainstream markets.

How does analyzing redline maps actively engage students in learning about segregation?

Working directly with historical HOLC maps and comparing them to contemporary health or income data gives students geographic evidence to analyze rather than historical summaries to accept. When students find specific spatial correlations between 1930s map grades and today's outcomes, segregation becomes a concrete, mappable, and arguable geographic fact rather than an abstract policy debate.