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Table 9. Chlamydia - Reported Cases and Rates in Counties and Independent Cities* Ranked by Number of Reported Cases, United States, 2012

This web page is archived for historical purposes and is no longer being updated.


RankCounty/Independent CityCasesRate per 100,000 PopulationCumulative Percentage
1Los Angeles County, CA51,589521.73
2Cook County, IL37,946727.36
3Harris County, TX21,933524.67
4Philadelphia County, PA20,8031,353.99
5Kings County, NY19,224759.010
6Maricopa County, AZ19,044490.811
7Wayne County, MI17,532972.913
8Bronx County, NY17,0231,222.914
9San Diego County, CA16,524526.215
10Dallas County, TX16,223671.516
11Queens County, NY12,777568.417
12San Bernardino County, CA11,781570.418
13New York County, NY11,777735.219
14Bexar County, TX11,586659.720
15Cuyahoga County, OH10,221804.620
16Marion County, IN10,1091,109.321
17Milwaukee County, WI10,0641,056.622
18Shelby County, TN9,9051,059.322
19Miami-Dade County, FL9,612376.223
20Riverside County, CA9,213411.424
21Orange County, CA8,642282.824
22Tarrant County, TX8,620466.025
23Clark County, NV8,587435.926
24Sacramento County, CA8,153567.726
25Baltimore (City), MD7,7141,245.227
26Broward County, FL7,383414.727
27Hillsborough County, FL7,098559.928
28Franklin County, OH7,063599.228
29Fulton County, GA6,868723.329
30Washington, D.C.6,8081,101.629
31Travis County, TX6,782637.930
32King County, WA6,772343.830
33Hamilton County, OH6,576821.631
34Alameda County, CA6,562428.931
35Allegheny County, PA6,444525.231
36Orange County, FL6,361544.132
37Mecklenburg County, NC6,286665.632
38Suffolk County, MA6,084832.433
39Prince George's County, MD6,037692.933
40Fresno County, CA6,025639.034
41Kern County, CA5,935696.834
42Hennepin County, MN5,829498.934
43Jackson County, MO5,521816.335
44Jefferson County, AL5,509836.135
45Denver County, CO5,467881.836
46St. Louis County, MO5,379538.636
47Duval County, FL5,331612.336
48Essex County, NJ5,237667.037
49DeKalb County, GA5,191741.737
50Honolulu County, HI5,096528.837
51Erie County, NY5,088554.238
52Jefferson County, KY5,072679.138
53El Paso County, TX5,014610.939
54Monroe County, NY5,000670.639
55San Francisco County, CA4,883600.739
56Pima County, AZ4,761481.140
57Wake County, NC4,659501.140
58Santa Clara County, CA4,442245.540
59Pierce County, WA4,313533.941
60Orleans County, LA4,2921,189.841
61Oklahoma County, OK4,106560.641
62St. Louis (City), MO4,0811,283.141
63Bernalillo County, NM4,077607.642
64New Haven County, CT4,003464.942
65Hartford County, CT4,001447.242
66Bell County, TX3,9971,268.143
67Guilford County, NC3,948797.143
68Palm Beach County, FL3,938294.943
69Salt Lake County, UT3,923374.043
70Pinellas County, FL3,813415.644

* Accounting for 44% of reported chlamydia cases.

Counties and independent cities were ranked in descending order by number of cases reported then by rate in 2012.

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