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Table 9. Chlamydia — Reported Cases and Rates of Reported Cases in Counties and Independent Cities* Ranked by Number of Reported Cases, United States, 2015

 
This web page is archived for historical purposes and is no longer being updated. Newer data is available on the STD Data and Statistics page.
 

Rank* County/Independent City Cases Rate per 100,000 Population Cumulative Percentage
1 Los Angeles County, CA 56,968 563.1 3
2 Cook County, IL 39,539 753.6 6
3 Harris County, TX 25,881 582.7 8
4 Maricopa County, AZ 20,483 501.2 9
5 Philadelphia County, PA 19,169 1,228.5 10
6 Kings County, NY 18,332 699.2 11
7 San Diego County, CA 17,378 532.5 12
8 Bronx County, NY 16,540 1,150.1 14
9 Dallas County, TX 16,350 649.2 15
10 Wayne County, MI 14,899 844.2 16
11 New York County, NY 13,841 845.9 16
12 Bexar County, TX 13,148 708.5 17
13 Queens County, NY 12,471 537.2 18
14 Miami-Dade County, FL 11,851 445.0 19
15 Orange County, CA 11,317 359.8 20
16 San Bernardino County, CA 11,011 521.2 20
17 Clark County, NV 10,049 485.5 21
18 Riverside County, CA 9,767 419.3 22
19 Milwaukee County, WI 9,663 1,010.3 22
20 Tarrant County, TX 9,589 492.9 23
21 Broward County, FL 9,529 509.8 24
22 Mecklenburg County, NC 9,276 916.1 24
23 Franklin County, OH 9,193 746.6 25
24 Cuyahoga County, OH 9,073 720.2 25
25 Marion County, IN 8,869 949.3 26
26 King County, WA 8,447 406.1 27
27 Sacramento County, CA 8,421 568.2 27
28 Alameda County, CA 8,132 504.8 28
29 Shelby County, TN 8,054 857.9 28
30 Orange County, FL 8,002 638.6 29
31 Travis County, TX 7,951 690.7 29
32 San Francisco County, CA 7,648 897.2 30
33 Hillsborough County, FL 7,588 576.5 30
34 Hennepin County, MN 7,016 578.8 31
35 Hamilton County, OH 6,834 847.2 31
36 Santa Clara County, CA 6,733 355.4 32
37 Baltimore (City), MD 6,728 1,080.3 32
38 Duval County, FL 6,484 722.3 32
39 Prince George’s County, MD 6,153 680.3 33
40 Denver County, CO 6,106 919.8 33
41 Kern County, CA 6,081 695.3 34
42 Fresno County, CA 5,946 615.5 34
43 Allegheny County, PA 5,854 475.4 34
44 Wake County, NC 5,771 577.9 35
45 Essex County, NJ 5,555 698.1 35
46 St. Louis County, MO 5,517 550.7 35
47 Honolulu County, HI 5,494 553.9 36
48 Pima County, AZ 5,480 545.5 36
49 Palm Beach County, FL 5,366 383.9 37
50 Jackson County, MO 5,252 768.7 37
51 Oklahoma County, OK 5,235 683.2 37
52 Jefferson County, KY 5,141 676.4 38
53 Erie County, NY 5,063 548.6 38
54 Fulton County, GA 4,990 500.8 38
55 Collin County, TX 4,899 553.4 39
56 Bernalillo County, NM 4,851 718.1 39
57 Guilford County, NC 4,781 933.6 39
58 Monroe County, NY 4,735 631.5 39
59 Contra Costa County, CA 4,697 422.6 40
60 El Paso County, TX 4,670 560.3 40
61 Multnomah County, OR 4,646 598.2 40
62 Jefferson County, AL 4,626 700.1 41
63 Pierce County, WA 4,617 555.0 41
64 Salt Lake County, UT 4,586 420.1 41
65 Orleans Parish, LA 4,418 1,149.6 42
66 Davidson County, TN 4,403 658.8 42
67 Tulsa County, OK 4,310 684.6 42
68 Pinellas County, FL 4,156 443.0 42
69 Middlesex County, MA 4,152 264.4 43
70 St. Louis (City), MO 4,042 1,273.4 43

* The top 70 counties and independent cities ranked in descending order by number of cases reported in 2015 then by rate are displayed.

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