Lyme Cases by State cdc
State 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Confirmed Probable Incidence*
  • †confirmed cases presented for all years except most recent
  • ∗confirmed cases per 100,000 population
  • N = not notifiable
Alabama 8 6 3 11 13 6 3 1 9 13 12 0.3
Alaska 3 3 4 3 10 6 7 7 9 4 6 0.5
Arizona 4 13 10 10 2 2 3 2 8 7 6 0.1
Arkansas 0 0 0 0 1 0 0 0 0 0 0 0.0
California 86 48 95 85 75 74 117 126 79 61 9 0.2
Colorado 0 0 0 0 0 2 0 1 0 0 0 0.0
Connecticut 1403 1348 1810 1788 3058 2738 2751 1964 2004 1653 1004 46.0
Delaware 212 339 646 482 715 772 984 656 767 507 162 55.3
DC 14 16 10 62 116 71 53 34 N N N N
Florida 43 46 47 34 30 72 77 56 78 67 51 0.3
Georgia 10 12 6 8 11 35 40 10 32 31 0 0.3
Hawaii 0 0 0 0 0 0 0 0 0 0 0 0.0
Idaho 3 6 2 7 9 5 4 6 3 0 5 0.0
Illinois 71 87 127 110 149 108 136 135 194 204 0 1.6
Indiana 25 32 33 26 55 42 61 62 81 64 10 1.0
Iowa 58 49 89 97 123 85 77 68 72 92 73 3.0
Kansas 4 3 3 4 8 16 18 7 11 9 10 0.3
Kentucky 17 15 5 7 6 5 1 5 3 8 6 0.2
Louisiana 7 2 3 1 2 3 0 2 1 3 4 0.1
Maine 175 225 247 338 529 780 791 559 801 885 226 66.6
Maryland 691 891 1235 1248 2576 1746 1466 1163 938 1113 538 18.9
Massachusetts 1532 1532 2336 1432 2988 3960 4019 2380 1801 3396 1742 51.1
Michigan 12 27 62 55 51 76 81 76 89 80 18 0.8
Minnesota 474 1023 917 914 1238 1046 1063 1293 1185 911 604 16.9
Mississippi 21 0 0 3 1 1 0 0 3 1 0 0.0
Missouri 70 25 15 5 10 6 3 4 5 1 1 0.0
Montana 0 0 0 1 4 6 3 3 9 6 0 0.6
Nebraska 2 2 2 11 7 8 4 7 7 5 10 0.3
Nevada 3 1 3 4 15 9 10 2 3 10 0 0.4
NewHampshire 190 226 265 617 896 1211 996 830 887 1002 448 75.9
New Jersey 2887 2698 3363 2432 3134 3214 4598 3320 3398 2732 884 30.8
New Mexico 1 1 3 3 5 4 1 3 2 1 0 0.0
New York 5399 5100 5565 4460 4165 5741 4134 2385 3118 2044 954 10.4
North Carolina 156 122 49 31 53 16 21 21 18 27 95 0.3
North Dakota 0 0 3 7 12 8 10 21 22 10 5 1.4
Ohio 66 50 58 43 33 40 51 21 36 49 18 0.4
Oklahoma 0 3 0 0 1 1 2 0 2 1 3 0.0
Oregon 16 11 3 7 6 18 12 7 9 5 43 0.1
Pennsylvania 5730 3985 4287 3242 3994 3818 4950 3298 4739 4146 887 32.5
Rhode Island 736 249 39 308 177 186 150 115 111 133 84 12.7
South Carolina 18 22 15 20 31 14 25 19 24 35 9 0.7
South Dakota 1 1 2 1 0 3 1 1 2 4 0 0.5
Tennessee 20 20 8 15 31 7 10 6 5 2 28 0.0
Texas 85 98 69 29 87 105 88 55 28 33 42 0.1
Utah 2 1 2 5 7 3 6 3 6 2 3 0.1
Vermont 43 50 54 105 138 330 323 271 476 386 136 61.7
Virginia 195 216 274 357 959 886 698 911 756 805 305 9.8
Washington 7 14 13 8 12 22 15 12 17 13 2 0.2
West Virginia 31 38 61 28 84 120 143 128 107 82 15 4.4
Wisconsin 740 1144 1459 1466 1814 1493 1952 2505 2408 1368 398 23.9
Wyoming 2 4 3 1 3 1 1 0 1 3 1 0.5
U.S. TOTAL 21,273 19,804 23,305 19,931 27,444 28,921 29,959 22,561 24,364 22,014 8,817 7.0