This article addresses an aspect of racial residential segregation that has been largely ignored in prior work: the issue of geographic scale. In some metropolitan areas, racial groups are segregated over large regions, with predominately white regions, predominately black regions, and so on, whereas in other areas, the separation of racial groups occurs over much shorter distances. Here we develop an approach—featuring the segregation profile and the corresponding macro/micro segregation ratio—that offers a scale-sensitive alternative to standard methodological practice for describing segregation. Using this approach, we measure and describe the geographic scale of racial segregation in the 40 largest U.S. metropolitan areas in 2000. We find considerable heterogeneity in the geographic scale of segregation patterns across both metropolitan areas and racial groups, a heterogeneity that is not evident using conventional “aspatial” segregation measures. Moreover, because the geographic scale of segregation is only modestly correlated with the level of segregation in our sample, we argue that geographic scale represents a distinct dimension of residential segregation. We conclude with a brief discussion of the implications of our findings for investigating the patterns, causes, and consequences of residential segregation at different geographic scales.
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Charles, C.Z. 2003. “The Dynamics of Racial Residential Segregation.” Annual Review of Sociology 29:167–207.
Environmental Systems Research Institute. 2005. ArcGIS: Release 9.1. Redlands, CA: Environmental Systems Research Institute.
Farley, R. and W.H. Frey. 1994. “Changes in the Segregation of Whites From Blacks During the 1980s: Small Steps Toward a More Integrated Society.” American Sociological Review 59:23–45.
Fischer, C.S., G. Stockmayer, J. Stiles, and M. Hout. 2004. “Distinguishing the Geographic Levels and Social Dimensions of U.S. Metropolitan Segregation, 1960–2000.” Demography 41:37–59.
GeoLytics. 2003. Census 2000 Short Form Blocks. East Brunswick, NJ: GeoLytics, Inc.
Grannis, R. 1998. “The Importance of Trivial Streets: Residential Streets and Residential Segregation.” American Journal of Sociology 103:1530–64.
— 2002. “Discussion: Segregation Indices and Their Functional Inputs.” Sociological Methodology 32:69–84.
Hu, P.S. and T.R. Reuscher. 2004. “Summary of Travel Trends: 2001 National Household Travel Survey.” Report. U.S. Department of Transportation, Federal Highway Administration, Washington, DC.
Iceland, J., D. Weinberg, and E. Steinmetz. 2002. “Racial and Ethnic Segregation in the United States: 1980–2000.” Census 2000 Special Report. U.S. Government Printing Office, Washington, DC.
Jargowsky, P.A. and J. Kim. 2005. “A Measure of Spatial Segregation: The Generalized Neighborhood Sorting Index.” Working Paper No. 05-03. National Poverty Center, University of Michigan, Ann Arbor.
Kaplan, D.H. and S.R. Holloway. 2001. “Scaling Ethnic Segregation: Causal Processes and Contingent Outcomes in Chinese Residential Patterns.” GeoJournal 53:59–70.
Krysan, M. and R. Farley. 2002. “The Residential Preferences of Blacks: Do They Explain Persistent Segregation?” Social Forces 80:937–80.
Lee, B.A., S.F. Reardon, G. Firebaugh, C.R. Farrell, S.A. Matthews, and D. O’Sullivan. Forthcoming. “Beyond the Census Tract: Patterns and Determinants of Racial Residential Segregation at Multiple Geographic Scales.” American Sociological Review.
Logan, J.R., B.J. Stults, and R. Farley. 2004. “Segregation of Minorities in the Metropolis: Two Decades of Change.” Demography 41:1–22.
Massey, D. S. and N.A. Denton. 1987. “Trends in the Residential Segregation of Blacks, Hispanics, and Asians: 1970–1980.” American Sociological Review 52:802–25.
—. 1988. “The Dimensions of Residential Segregation.” Social Forces 67:281–315.
—. 1993. American Apartheid: Segregation and the Making of the Underclass. Cambridge, MA: Harvard University Press.
Massey, D.S. and M.J. Fischer. 2003. “The Geography of Inequality in the United States, 1950–2000.” Brookings-Wharton Papers on Urban Affairs 2003(4):1–40.
Massey, D.S. and Z.L. Hajnal. 1995. “The Changing Geographic Structure of Black-White Segregation in the United States.” Social Science Quarterly 76:527–42.
Morrill, R.L. 1991. “On the Measure of Spatial Segregation.” Geography Research Forum 11:25–36.
National Center for Transit Research. 2005. “Public Transit in America: Results From the 2001 National Household Travel Survey.” Report No. FDOT BC137-48; NCTR 527-09. Center for Urban Transportation Research, University of South Florida, Tampa.
Pielou, E.C. 1977. Mathematical Ecology, 2nd ed. New York: John Wiley and Sons.
Reardon, S.F. and G. Firebaugh. 2002. “Measures of Multi-group Segregation.” Sociological Methodology 32:33–67.
Reardon, S.F. and D. O’Sullivan. 2004. “Measures of Spatial Segregation.” Sociological Methodology 34:121–62.
Reardon, S.F., J.T. Yun, and T.M. Eitle. 2000. “The Changing Structure of School Segregation: Measurement and Evidence of Multi-Racial Metropolitan Area School Segregation, 1989–1995.” Demography 37:351–64.
Sastry, N., A.R. Pebley, and M. Zonta. 2002. “Neighborhood Definitions and the Spatial Dimension of Daily Life in Los Angeles.” Working Paper No. ccpr-033-04. California Center for Population Research, UCLA. Available online at http://www.ccpr.ucla.edu/asp/index.asp.
Smith, N. 2000. “Scale.” Pp. 724–27 in The Dictionary of Human Geography, 4th ed., edited by R.J. Johnston, D. Gregory, G. Pratt, and M. Watts. Oxford, UK: Blackwell.
Taeuber, K.E. and A.F. Taeuber. 1965. Negroes in Cities: Residential Segregation and Neighborhood Change. Chicago: Aldine Publishing Co.
Theil, H. 1972. Statistical Decomposition Analysis, Vol. 14. Amsterdam: North-Holland Publishing Company.
Timberlake, J.M. 2002. “Separate, But How Unequal? Ethnic Residential Strati cation, 1980 to 1990.” City and Community 1:251–66.
Tobler, W.R. 1979. “Smooth Pycnophylactic Interpolation for Geographical Regions.” Journal of the American Statistical Association 74:519–29.
Turner, M.A., S.L. Ross, G.C. Galster, and J. Yinger. 2002. “Discrimination in Metropolitan Housing Markets: National Results From Phase I HDS 2000” [Electronic version]. Available online at http://www.huduser.org/publications/hsg n/hds.html.
White, M.J. 1983. “The Measurement of Spatial Segregation.” American Journal of Sociology 88:1008–18.
Wilson, W.J. 1987. The Truly Disadvantaged: The Inner City, the Underclass, and Public Policy. Chicago: University of Chicago Press.
Wong, D.W.S. 1993. “Spatial Indices of Segregation.” Urban Studies 30:559–72.
— 1997. “Spatial Dependency of Segregation Indices.” The Canadian Geographer 41:128–36.
— 1999. “Geostatistics as Measures of Spatial Segregation.” Urban Geography 20:635–47.
— 2004. “Comparing Traditional and Spatial Segregation Measures: A Spatial Scale Perspective.” Urban Geography 25:66–82.
Wu, X.B., and D.Z. Sui. 2001. “An Initial Exploration of a Lacunarity-Based Segregation Measure.” Environment and Planning B: Planning and Design 28:433–46.
Yinger, J. 1995. Closed Doors, Opportunities Lost: The Continuing Costs of Housing Discrimination. New York: Russell Sage Foundation.
This work was supported by the National Science Foundation (Grants SES-0520400 [Reardon] and SES-0520405 [Matthews]) and the William T. Grant Foundation (Reardon). We thank Steve Graham and Yosef Bodovski for writing the code to compute the spatial segregation measures used here. All errors remain our own.
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Reardon, S.F., Matthews, S.A., O’Sullivan, D. et al. The geographic scale of Metropolitan racial segregation. Demography 45, 489–514 (2008). https://doi.org/10.1353/dem.0.0019