Table 1.

County-level segregation due to net migration (NM) for multigroup and dual groups by age, 1990–2010

	Observed			Expected (no NM)		Change Due to NM		Change Due to Natural Processes
	1990	2000	2010	2000	2010	1990s	2000s	1990s	2000s
Total Population
Multigroup	22.6	21.3	19.6	23.0	21.3	−1.7	−1.7	0.4	0.0
Black-white	20.9	21.1	20.2	21.3	21.4	−0.1	−1.2	0.4	0.2
Hispanic-white	29.3	27.3	24.7	30.1	27.2	−2.8	−2.5	0.8	−0.1
Black-Hispanic	37.5	33.7	29.5	37.7	33.0	−4.0	−3.6	0.2	−0.6
Under Age 20
Multigroup	25.5	23.6	20.8	25.6	22.9	−2.0	−2.0	0.1	−0.7
Black-white	24.2	23.8	21.8	24.1	23.3	−0.3	−1.5	−0.1	−0.5
Hispanic-white	33.3	30.3	26.5	33.4	28.9	−3.1	−2.3	0.1	−1.5
Black-Hispanic	39.8	35.1	29.9	39.6	33.0	−4.4	−3.1	−0.2	−2.1
Aged 20–39
Multigroup	24.4	20.2	18.1	23.3	21.8	−3.1	−3.6	1.9	1.6
Black-white	19.7	19.9	18.7	21.2	21.7	−1.3	−3.1	1.5	1.8
Hispanic-white	28.6	26.5	23.6	31.4	28.4	−4.9	−4.9	2.8	1.9
Black-Hispanic	35.2	31.2	26.8	37.5	32.5	−6.3	−5.7	2.3	1.3
Aged 40–59
Multigroup	22.1	21.3	20.5	21.4	20.7	−0.1	−0.2	−0.7	−0.6
Black-white	20.9	21.4	21.1	20.4	20.7	1.0	0.4	−0.5	−0.7
Hispanic-white	28.8	27.5	26.2	28.0	27.0	−0.6	−0.8	−0.8	−0.5
Black-Hispanic	36.5	34.6	31.2	35.6	36.4	−1.0	−5.2	−0.9	1.8
Aged 60 or Older
Multigroup	24.1	23.7	22.7	22.7	22.1	1.0	0.6	−1.4	−1.6
Black-white	21.1	21.5	21.7	20.3	21.2	1.2	0.5	−0.8	−0.3
Hispanic-white	28.6	29.8	28.4	28.0	28.2	1.9	0.3	−0.7	−1.6
Black-Hispanic	43.0	40.0	36.8	38.7	33.0	1.3	3.7	−4.3	−7.0