Table 1.
Demographic Distribution of the US Population Stratified Across the EJI and EBM Quartiles
| EJI quartile 1 (0–0.25) | EJI quartile 2 (0.26–0.50) | EJI quartile 3 (0.51–0.75) | EJI quartile 4 (0.76–1.0) | EBM quartile 1 (0–0.25) | EBM quartile 2 (0.26–0.50) | EBM quartile 3 (0.51–0.75) | EBM quartile 4 (0.76–1.0) | |
|---|---|---|---|---|---|---|---|---|
| Demographics | ||||||||
| Age 18–44 y | 17 429 804 | 17 770 409 | 18 860 800 | 18 852 898 | 16 825 728 | 17 991 851 | 18 854 433 | 19 251 823 |
| Median % 18–44 (IQR) | 26.05 (25.92–26.18) | 27.93 (27.79–28.05) | 29.88 (29.74–30.01) | 31.87 (31.75–31.99) | 26.82 (26.69–26.95) | 28.24 (28.12–28.38) | 29.68 (29.55–29.75) | 31.54 (31.42–31.67) |
| Age 45–64 y | 17 926 199 | 15 855 665 | 15 158 922 | 13 796 281 | 16 203 006 | 16 049 191 | 15 795 993 | 14 691 457 |
| Median % 45–64 (IQR) | 28.80 (28.71–28.90) | 26.93 (26.85–27.05) | 25.51 (25.49–25.52) | 23.84 (23.74–23.94) | 27.48 (27.36–27.60) | 26.6 (26.55–26.73) | 25.97 (25.86–26.08) | 24.95 (24.83–25.04) |
| Age ≥65 y | 11 439 193 | 10 417 586 | 9 823 571 | 7 983 962 | 10 962 008 | 10 232 373 | 9 829 153 | 8 641 086 |
| Median % ≥65 (IQR) | 17.61 (17.48–17.76) | 17.40 (17.28–17.54) | 16.11 (16.09–16.13) | 13.20 (13.08–13.32) | 18.0 (17.79–18.10) | 16.73 (16.60–16.86) | 15.75 (15.63–15.88) | 14.05 (13.91–14.18) |
| Race, n (%) | ||||||||
| White adults | 51 964 953 (87.1) | 46 598 482 (84.1) | 42 024 671 (77.3) | 29 972 789 (62.4) | 46 481 284 (84.4) | 45 404 166 (81.2) | 42 447 849 (76.4) | 36 240 393 (71.1) |
| Black adults | 3 215 002 (5.3) | 4 996 164 (9) | 8 508 138 (15.6) | 14 577 848 (30.3) | 4 527 777 (8.2) | 6 801 487 (12.1) | 9 130 305 (16.4) | 10 844 960 (21.3) |
| American Indian or Alaskan Native | 282 493 (0.5) | 665 405 (1.2) | 549 790 (1) | 472 874 (1) | 819 675 (1.5) | 458 718 (0.8) | 370 394 (0.6) | 321 927 (0.63) |
| Asian | 4 074 233 (6.8) | 3 077 411 (5.5) | 3 178 799 (5.8) | 2 870 425 (0.06) | 3 119 747 (5.6) | 3 166 011 (5.6) | 3 492 303 (6.2) | 3 424 096 (6.7) |
| Native Hawaiian or Other Pacific Islander | 75 785 (0.1) | 78 768 (0.1) | 89 712 (0.1) | 91 266 (0.2) | 96 041 (0.17) | 81 554 (0.14) | 77 560 (0.1) | 80 376 (0.15) |
| Total | 59 612 466 | 55 416 230 | 54 351 110 | 47 985 202 | 55 044 524 | 55 911 936 | 55 518 411 | 50 911 752 |
| Ethnicity | ||||||||
| Hispanic | 6 043 439 (11.1) | 7 814 179 (15.7) | 11 260 958 (24) | 18 691 796 (48) | 9 371 072 (18.7) | 9 427 037 (19.1) | 10 542 940 (22.3) | 14 472 021 (33.2) |
| Non‐Hispanic | 48 241 555 (88.9) | 41 991 477 (84.3) | 35 623 302 (76) | 20 460 996 (52.2) | 40 691 877 (81.2) | 39 919 008 (80.8) | 36 699 082 (77.6) | 29 018 414 (66.7) |
EBM indicates environmental burden module; EJI, environmental justice index; and IQR, interquartile range.