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. 2017 Aug 11;66(31):821–825. doi: 10.15585/mmwr.mm6631a1

TABLE 2. Estimated numbers of active epilepsy cases, by state and age group — United States, 2015.

Geographic area Age group (yrs)
All ages
<18*
≥18
No. (95% CI§) No. (95% CI) No. (95% CI)
United States
3,439,600 (3,009,100–3,870,100)
471,900 (392,600–551,200)
2,967,700 (2,544,500–3,390,800)
Alabama
54,100 (46,400–61,900)
7,500 (5,900–9,200)
46,600 (39,000–54,200)
Alaska
7,200 (6,100–8,300)
1,100 (800–1,400)
6,100 (5,000–7,200)
Arizona
77,000 (66,400–87,500)
11,200 (8,900–13,600)
65,700 (55,400–76,000)
Arkansas
32,800 (28,000–37,600)
4,900 (3,700–6,100)
28,000 (23,300–32,600)
California
427,700 (372,600–482,900)
59,800 (49,000–70,600)
367,900 (313,800–422,000)
Colorado
56,800 (48,300–65,300)
7,800 (6,000–9,600)
49,000 (40,700–57,300)
Connecticut
35,900 (30,400–41,400)
4,500 (3,400–5,700)
31,400 (26,000–36,800)
Delaware
9,700 (8,200–11,100)
1,300 (900–1,600)
8,400 (7,000–9,900)
District of Columbia
7,500 (6,300–8,800)
800 (600–1,100)
6,700 (5,500–7,900)
Florida
223,900 (194,100–253,800)
27,300 (21,900–32,800)
196,600 (167,200–225,900)
Georgia
110,200 (94,900–125,500)
16,700 (13,200–20,100)
93,500 (78,600–108,500)
Hawaii
14,000 (11,900–16,100)
2,000 (1,500–2,400)
12,000 (10,000–14,100)
Idaho
16,800 (14,200–19,300)
2,600 (2,000–3,200)
14,200 (11,700–16,600)
Illinois
136,600 (117,900–155,400)
18,600 (14,900–22,400)
118,000 (99,700–136,400)
Indiana
69,500 (59,600–79,400)
10,600 (8,300–13,000)
58,900 (49,200–68,500)
Iowa
31,400 (26,800–36,100)
4,400 (3,400–5,400)
27,000 (22,500–31,600)
Kansas
29,900 (25,500–34,300)
4,400 (3,400–5,400)
25,500 (21,200–29,900)
Kentucky
49,500 (42,000–57,000)
6,800 (4,900–8,700)
42,700 (35,500–50,000)
Louisiana
54,900 (46,600–63,200)
7,900 (6,200–9,700)
47,000 (38,900–55,100)
Maine
14,100 (11,900–16,300)
1,700 (1,200–2,200)
12,400 (10,300–14,600)
Maryland
59,900 (50,700–69,100)
7,900 (6,200–9,700)
52,000 (42,900–61,000)
Massachusetts
71,600 (60,900–82,300)
8,400 (6,500–10,300)
63,200 (52,600–73,700)
Michigan
108,900 (93,300–124,500)
13,600 (10,800–16,400)
95,300 (79,900–110,600)
Minnesota
53,700 (45,700–61,700)
7,400 (5,900–9,000)
46,300 (38,400–54,100)
Mississippi
35,700 (30,600–40,700)
5,100 (3,900–6,300)
30,600 (25,700–35,500)
Missouri
61,200 (52,400–70,000)
8,300 (6,500–10,100)
52,900 (44,200–61,600)
Montana
10,800 (9,100–12,600)
1,400 (1,000–1,800)
9,400 (7,700–11,100)
Nebraska
19,600 (16,600–22,500)
2,800 (2,200–3,500)
16,700 (13,800–19,600)
Nevada
31,600 (26,800–36,400)
4,400 (3,300–5,400)
27,200 (22,500–31,900)
New Hampshire
13,100 (11,100–15,200)
1,500 (1,100–1,900)
11,600 (9,600–13,700)
New Jersey
92,700 (79,100–106,200)
12,000 (9,500–14,500)
80,600 (67,300–93,900)
New Mexico
23,200 (19,800–26,500)
3,400 (2,600–4,200)
19,800 (16,400–23,100)
New York
215,200 (186,300–244,000)
26,600 (21,600–31,500)
188,600 (160,200–217,100)
North Carolina
110,100 (94,700–125,500)
15,200 (11,800–18,500)
94,900 (79,900–110,000)
North Dakota
7,300 (6,200–8,500)
1,000 (700–1,200)
6,400 (5,300–7,500)
Ohio
126,400 (109,300–143,400)
16,900 (13,600–20,300)
109,400 (92,700–126,200)
Oklahoma
41,100 (34,900–47,300)
6,400 (5,000–7,900)
34,700 (28,700–40,700)
Oregon
42,900 (36,300–49,400)
5,400 (4,100–6,800)
37,400 (31,000–43,900)
Pennsylvania
133,000 (114,600–151,400)
16,900 (13,500–20,200)
116,100 (98,000–134,200)
Rhode Island
11,100 (9,300–12,900)
1,300 (900–1,700)
9,800 (8,100–11,500)
South Carolina
53,400 (45,500–61,300)
7,100 (5,500–8,700)
46,300 (38,500–54,000)
South Dakota
8,900 (7,400–10,400)
1,300 (900–1,600)
7,600 (6,200–9,100)
Tennessee
73,900 (62,900–84,800)
10,000 (7,800–12,300)
63,800 (53,100–74,600)
Texas
292,900 (255,400–330,300)
47,200 (38,500–56,000)
245,600 (209,200–282,000)
Utah
29,300 (24,900–33,600)
5,300 (4,100–6,500)
24,000 (19,800–28,200)
Vermont
6,300 (5,300–7,300)
700 (500–900)
5,600 (4,700–6,600)
Virginia
84,800 (72,600–97,000)
11,000 (8,800–13,200)
73,800 (61,800–85,800)
Washington
74,600 (64,000–85,200)
10,200 (8,100–12,300)
64,400 (54,000–74,800)
West Virginia
21,500 (18,100–25,000)
2,500 (1,900–3,100)
19,000 (15,600–22,500)
Wisconsin
59,600 (50,800–68,300)
7,900 (6,300–9,500)
51,700 (43,100–60,300)
Wyoming 5,900 (5,000–6,800) 800 (600–1,000) 5,100 (4,200–6,000)

Abbreviation: CI = confidence interval.

* Active epilepsy cases in children are estimated from the current epilepsy prevalence in children (2011–2012 National Survey of Children's Health) and the population of children, accounting for the ratios of family income to poverty thresholds.

Active epilepsy cases in adults are estimated from the prevalence of active epilepsy (taking medication, having had a seizure in the past year, or both) in adults (2015 National Health Interview Survey) and the population of adults, accounting for the ratios of family income to poverty thresholds. The total population estimates come from the 2014 weighted person counts of the Current Population Survey, 2015 Annual Social and Economic Supplement of the civilian noninstitutionalized population living in houses and military population living in houses.

§ Confidence interval represents only sampling uncertainty from the sampling uncertainties in the prevalence estimates and in the state-specific and age-specific ratios of family income to poverty thresholds.