Table 1. County-level demographics, indicators of racial inequity in socioeconomic status, and infant mortality rates by urban-rural classification.
| Total | Large central metro | Large fringe metro | Medium metro | Small metro | Micropolitan | Non-core | ||
| N=3,142 | n=68 | n=368 | n=372 | n=358 | n=641 | n=1,335 | P | |
| Median income, $10,000 | 4.65 ± 1.21 | 5.60 ± 1.38 | 6.16 ± 1.61 | 4.97 ± 1.21 | 4.73 ± .86 | 4.41 ± .94 | 4.20 ± .89 | <.001 |
| College graduates, % | 13.2 | 21.3 | 17.1 | 15.0 | 14.0 | 12.5 | 11.3 | <.001 |
| Unemployed, % | 8.6 | 9.7 | 8.5 | 9.0 | 8.6 | 9.0 | 8.2 | <.001 |
| Homeowner, % | 71.7 | 54.1 | 73.7 | 7.4 | 69.3 | 7.1 | 73.9 | <.001 |
| Population, 100,000 | .99 ± 3.20 | 14.10 ± 14.37 | 2.11 ± 2.94 | 1.76 ± 1.95 | .81 ± .62 | .42 ± .26 | .14 ± .11 | <.001 |
| Non-Hispanic Black residents, % | 8.9 | 2.7 | 10.4 | 10.9 | 9.2 | 8.0 | 7.6 | <.001 |
| Dissimilarity Index | .43 ± .18 | .60 ± .11 | .44 ± .15 | .47 ± .14 | .45 ± .14 | .46 ± .15 | .38 ± .21 | <.001 |
| Black-White ratio | ||||||||
| Median income | .67 ± .31 | .55 ± .11 | .71 ± .23 | .65 ± .27 | .66 ± .31 | .68 ± .34 | .68 ± .35 | .004 |
| College graduation rate | .61 ± .75 | .47 ± .13 | .71 ± .46 | .63 ± .47 | .66 ± .77 | .59 ± .60 | .57 ± .95 | .012 |
| Unemployment | 2.41 ± 4.12 | 2.41 ± .66 | 1.82 ± 1.18 | 2.05 ± 1.78 | 2.28 ± 2.52 | 2.36 ± 2.58 | 2.82 ± 6.09 | .001 |
| Homeownership | .63 ± .35 | .56 ± .12 | .65 ± .24 | .64 ± .27 | .60 ± .29 | .59 ± .34 | .66 ± .43 | .001 |
| Infant mortality rate, per 1,000 live births | ||||||||
| Black | 12.14 ± 3.63 | 11.21 ± 3.20 | 10.26 ± 3.02 | 12.98 ± 3.07 | 14.60 ± 4.19 | 13.13 ± 2.64 | --- | <.001 |
| White | 5.02 ± 1.46 | 4.16 ± 1.03 | 4.51 ± 1.30 | 5.24 ± 1.29 | 5.84 ± 1.45 | 7.62 ± 1.30 | --- | <.001 |
| Black-White ratio | 2.19 ± 1.21 | 2.70 ± .84 | 2.03 ± 1.08 | 2.15 ± 1.29 | 2.15 ± 1.45 | 2.61 ± .82 | --- | .002 |
Data are mean ± SD unless noted otherwise.