US Counties With the Highest Black-white Residential Segregation

2,064 US counties ranked by black-white residential segregation, from highest to lowest. First are Starr County, TX (92.4), Manistee County, MI (90.2) and Umatilla County, OR (89.6). The middle one of the 2,064 has 50.5.

What this measures

How unevenly Black and white residents are spread across the county's neighborhoods, from 0 (evenly mixed) to 100 (completely separate). It is the share of either group who would have to move for the two groups to be spread the same way. It is only calculated where both groups live in large enough numbers. Source: County Health Rankings.

For most measures, a national ranking mostly sorts places by income and by how urban they are. Each county’s own page compares it with the 50 counties most like it instead, which is often the fairer view.

The 100 highest counties

Rank	County	index, 0 to 100
1	Starr County, TX	92.4
2	Manistee County, MI	90.2
3	Umatilla County, OR	89.6
4	Pike County, KY	89.3
5	Cass County, IN	88.9
6	Livingston County, MO	88.5
7	Kootenai County, ID	88.3
8	Orange County, IN	87.5
9	Webster County, MO	87.3
10	Elko County, NV	86.5
11	Winston County, AL	86
12	Preble County, OH	85.9
13	Chelan County, WA	85.9
14	Mackinac County, MI	85.9
15	Carroll County, IN	85.4
16	Lapeer County, MI	85.3
17	Fannin County, GA	85.2
18	Cumberland County, TN	85.1
19	Cameron County, TX	85
20	Effingham County, IL	84.9
21	Missoula County, MT	84.9
22	Osage County, OK	84.9
23	Jefferson County, WA	84.8
24	Nevada County, CA	84.8
25	Perry County, KY	84.7
26	Newton County, IN	84.6
27	Belknap County, NH	83.9
28	Wayne County, WV	83.8
29	Knox County, KY	83.8
30	Gallatin County, MT	83.8
31	Calaveras County, CA	83.7
32	Mason County, WV	83.7
33	Cherokee County, IA	83.6
34	Dodge County, MN	83.6
35	Plymouth County, MA	83.4
36	Tillamook County, OR	83.1
37	Fayette County, IL	83
38	Cibola County, NM	83
39	Gila County, AZ	82.9
40	Adams County, NE	82.7
41	Merrimack County, NH	82.6
42	Deaf Smith County, TX	82.2
43	Somerset County, ME	82.1
44	Montcalm County, MI	82
45	Randolph County, IL	81.7
46	Piscataquis County, ME	81.6
47	Dare County, NC	81.4
48	Van Wert County, OH	81.3
49	Warren County, PA	81.3
50	Mercer County, OH	81.1
51	White County, IN	81
52	Marion County, IA	80.9
53	Tehama County, CA	80.9
54	Pike County, OH	80.8
55	Harrison County, OH	80.7
56	Apache County, AZ	80.6
57	Lawrence County, TN	80.3
58	Lincoln County, OR	80.3
59	Cache County, UT	80.3
60	Beltrami County, MN	80.2
61	Whitley County, KY	80.1
62	Hidalgo County, TX	79.9
63	Cherokee County, OK	79.8
64	Warren County, IA	79.7
65	Palo Alto County, IA	79.7
66	Miller County, MO	79.6
67	Queens County, NY	79.6
68	Grant Parish, LA	79.5
69	Deschutes County, OR	79.5
70	Cullman County, AL	79.4
71	Utah County, UT	79.2
72	Powell County, KY	78.9
73	Jackson County, IN	78.7
74	Otter Tail County, MN	78.4
75	Andrews County, TX	78.2
76	Summit County, UT	78.2
77	Nassau County, NY	77.9
78	Scurry County, TX	77.7
79	Marathon County, WI	77.7
80	Benton County, MN	77.5
81	Dawson County, NE	77.5
82	Washington County, ME	77.4
83	Carbon County, PA	77.4
84	Sevier County, TN	77.2
85	Cook County, IL	77.2
86	Alpena County, MI	77.2
87	Dodge County, WI	76.9
88	Cheshire County, NH	76.9
89	Twin Falls County, ID	76.8
90	Garfield County, CO	76.7
91	Phelps County, MO	76.6
92	Butler County, KS	76.6
93	Camden County, MO	76.5
94	Inyo County, CA	76.5
95	Mississippi County, MO	76.5
96	Wayne County, MI	76.5
97	Clinton County, MO	76.5
98	Grand Traverse County, MI	76.4
99	Richland County, ND	76.4
100	Essex County, NJ	76.2

Every state, highest first

Each state’s own published figure, not an average of its counties.

Rank	State	index, 0 to 100
1	Montana	80.4
2	Idaho	77
3	Wisconsin	76.7
4	New York	75.1
5	Maine	74.9
6	Michigan	73.2
7	Pennsylvania	72
8	Illinois	71.4
9	Missouri	70.6
10	Wyoming	70.5
11	Utah	70.4
12	New Hampshire	69.9
13	Ohio	69.6
14	Indiana	68.2
15	Tennessee	67
16	District of Columbia	66.6
17	South Dakota	66.5
18	Colorado	66.1
19	Arkansas	65.4
20	New Jersey	65
21	Oregon	64.5
22	Nebraska	64.5
23	Maryland	63
24	Massachusetts	62.9
25	Iowa	62.8
26	Kentucky	62.5
27	Minnesota	62.4
28	Rhode Island	62.1
29	Vermont	62
30	Hawaii	61.6
31	Connecticut	61.6
32	West Virginia	61.3
33	Washington	59.8
34	California	59.2
35	Kansas	58.7
36	Alabama	57.7
37	Florida	57.5
38	Alaska	57.2
39	North Dakota	56.6
40	Oklahoma	56.1
41	Georgia	55.9
42	Louisiana	55.9
43	New Mexico	55.4
44	Texas	55.2
45	North Carolina	52.6
46	Arizona	51.2
47	Virginia	51.2
48	Mississippi	51.1
49	Nevada	50.7
50	South Carolina	48.2
51	Delaware	44.8

More on black-white residential segregation

A ranking describes places, not the people in them, and a high or low place does not by itself say why. All US rankings.