2009 Sexually Transmitted Diseases Surveillance

Table 2. Chlamydia – Reported Cases and Rates by State, Ranked by Rates, United States, 2009

Rank*	State	Cases	Rate per 100,000 Population
1	Mississippi	23,589	802.7
2	Alaska	5,166	752.7
3	Louisiana	27,628	626.4
4	South Carolina	26,654	595.0
5	Alabama	25,929	556.2
6	Delaware	4,718	540.4
7	Arkansas	14,354	502.7
8	New Mexico	9,493	478.4
9	Tennessee	29,711	478.1
10	New York	92,069	472.4
11	Illinois	60,542	469.3
12	Hawaii	6,026	467.8
13	Michigan	45,714	457.0
14	North Carolina	41,045	445.1
15	Missouri	25,868	437.6
16	Texas	105,910	435.4
17	Maryland	23,747	421.5
18	Ohio	48,239	420.0
19	Oklahoma	15,023	412.5
20	Georgia	39,828	411.2
	U.S. TOTAL†	1,244,180	409.2
21	Colorado	19,998	404.9
22	Arizona	26,002	400.0
23	California	146,796	399.4
24	Florida	72,931	397.9
25	Virginia	30,903	397.8
26	Nevada	10,045	386.3
27	Kansas	10,510	375.1
28	South Dakota	3,015	374.9
29	Wisconsin	20,906	371.5
30	Wyoming	1,963	368.5
31	Connecticut	12,127	346.4
32	Pennsylvania	43,068	346.0
33	Rhode Island	3,615	344.0
34	Indiana	21,732	340.8
35	Washington	21,387	326.6
36	Iowa	9,406	313.3
37	Kentucky	13,293	311.4
38	Montana	2,988	308.9
39	Nebraska	5,443	305.2
40	North Dakota	1,957	305.1
41	Oregon	11,497	303.3
42	Massachusetts	19,315	297.2
43	New Jersey	23,974	276.1
44	Minnesota	14,197	272.0
45	Idaho	3,842	252.1
46	Utah	6,145	224.6
47	West Virginia	3,604	198.6
48	Vermont	1,186	190.9
49	Maine	2,431	184.7
50	New Hampshire	2,102	159.7

* States were ranked in descending order by rate, number of cases, and alphabetically.

† Total includes cases reported by the District of Columbia with 6,549 cases and a rate of 1,106.6, but excludes outlying areas (Guam with 620 cases and rate of 352.3, Puerto Rico with 7,302 cases and rate of 184.7, and Virgin Islands with 488 cases and rate of 444.3).

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