Social scientists have focused some attention on the spatial and temporal patterns of minority suburbanization over the past several decades. However, we argue that no fully comprehensive analysis of suburbanization patterns yet exists along three dimensions simultaneously: the entire suburban landscape, in all metropolitan statistical areas (MSAs), over a long time period. In this study we code the suburban ring of all places in 379 MSAs and use multilevel modeling techniques to investigate patterns of non-Hispanic White, Black, and Asian, and Hispanic suburbanization from 1970 to 2019. We examine group-level disparities in first-ring shares, or the percentage of each group residing in the first ring of suburbs, and in ecological distance gradients, or the rate at which group shares decline across additional suburban rings. We find substantial differences in first-ring shares between non-Hispanic Whites and the three minority groups under consideration, reflecting decades of minority concentration in and non-Hispanic White migration out of principal cities. We also confirm that a larger share of non-Hispanic Whites resided in outer-ring suburbs; however, we do not observe as much variation in suburban diffusion as might be expected from prior research. We conclude that this somewhat null finding results from the fact that minorities have spread radially outward or directly settled in suburban areas that cut across multiple rings, rather than being confined primarily to inner-ring suburbs.

在过去的几十年里，社会科学家将一些注意力集中在少数民族郊区化的时空格局上。然而，我们认为，目前还没有对郊区化模式同时存在三个维度的全面分析：整个郊区景观，在所有大都市统计区 (MSA)，在很长一段时间内。在这项研究中，我们对 379 个 MSA 中所有地方的郊区环进行编码，并使用多层次建模技术来调查 1970 年至 2019 年非西班牙裔白人、黑人、亚裔和西班牙裔郊区化的模式。环份额，或居住在郊区第一环的每个群体的百分比，以及生态距离梯度，或集团股票在其他郊区环中下降的速度。我们发现非西班牙裔白人与所考虑的三个少数群体之间的第一环份额存在显着差异，这反映了几十年来少数族裔集中在主要城市以及非西班牙裔白人迁出主要城市。我们还证实，更大比例的非西班牙裔白人居住在外环郊区；然而，我们没有观察到郊区扩散的变化，正如先前研究所预期的那样。我们得出的结论是，这一有点无效的发现是由于少数民族已经径向向外扩散或直接定居在跨越多个环的郊区，而不是主要局限于内环郊区。