Table 9. Chlamydia — Reported Cases and Rates of Reported Cases in Counties and Independent Cities* Ranked by Number of Reported Cases, United States, 2018
Rank* | County/Independent City | Cases | Rate per 100,000 Population | Cumulative Percentage |
---|---|---|---|---|
1 | Los Angeles County, CA | 67,878 | 667.9 | 4 |
2 | Cook County, IL | 43,271 | 830.3 | 6 |
3 | Harris County, TX | 27,415 | 589.2 | 8 |
4 | Maricopa County, AZ | 26,464 | 614.4 | 9 |
5 | San Diego County, CA | 21,912 | 656.5 | 11 |
6 | Kings County, NY | 21,656 | 817.6 | 12 |
7 | Philadelphia County, PA | 20,206 | 1,278.2 | 13 |
8 | Dallas County, TX | 18,088 | 690.9 | 14 |
9 | Bronx County, NY | 17,689 | 1,202.4 | 15 |
10 | New York County, NY | 17,218 | 1,034.3 | 16 |
11 | Wayne County, MI | 15,114 | 861.9 | 17 |
12 | Orange County, CA | 14,265 | 447.1 | 18 |
13 | Queens County, NY | 14,059 | 596.1 | 18 |
14 | Clark County, NV | 13,695 | 621.3 | 19 |
15 | Miami-Dade County, FL | 13,395 | 486.8 | 20 |
16 | San Bernardino County, CA | 13,333 | 618.0 | 21 |
17 | Sacramento County, CA | 11,457 | 748.5 | 21 |
18 | Riverside County, CA | 11,453 | 472.6 | 22 |
19 | Broward County, FL | 11,322 | 584.9 | 23 |
20 | Milwaukee County, WI | 11,195 | 1,175.8 | 23 |
21 | Cuyahoga County, OH | 11,025 | 883.0 | 24 |
22 | Bexar County, TX | 10,544 | 538.3 | 25 |
23 | Marion County, IN | 10,408 | 1,095.5 | 25 |
24 | King County, WA | 10,233 | 467.5 | 26 |
25 | Franklin County, OH | 10,161 | 786.5 | 26 |
26 | Orange County, FL | 9,885 | 732.8 | 27 |
27 | Shelby County, TN | 9,724 | 1,037.8 | 27 |
28 | Alameda County, CA | 9,701 | 583.3 | 28 |
29 | Tarrant County, TX | 9,575 | 466.1 | 29 |
30 | San Francisco County, CA | 9,491 | 1,073.2 | 29 |
31 | Mecklenburg County, NC | 9,182 | 852.7 | 30 |
32 | Washington, D.C. | 9,014 | 1,298.9 | 30 |
33 | Travis County, TX | 8,992 | 733.0 | 31 |
34 | Hillsborough County, FL | 8,782 | 623.5 | 31 |
35 | Fulton County, GA | 8,376 | 804.3 | 32 |
36 | Santa Clara County, CA | 8,315 | 429.0 | 32 |
37 | Baltimore (City), MD | 8,013 | 1,310.1 | 33 |
38 | Prince George's County, MD | 8,013 | 877.9 | 33 |
39 | Hennepin County, MN | 7,866 | 628.3 | 33 |
40 | Denver County, CO | 7,466 | 1,059.6 | 34 |
41 | Fresno County, CA | 7,129 | 720.6 | 34 |
42 | Duval County, FL | 7,112 | 758.3 | 35 |
43 | Hamilton County, OH | 6,954 | 854.5 | 35 |
44 | Kern County, CA | 6,948 | 777.9 | 35 |
45 | Suffolk County, MA | 6,934 | 869.0 | 36 |
46 | Pima County, AZ | 6,688 | 653.9 | 36 |
47 | Wake County, NC | 6,482 | 604.5 | 37 |
48 | Essex County, NJ | 6,479 | 801.6 | 37 |
49 | St. Louis County, MO | 6,450 | 647.1 | 37 |
50 | Jackson County, MO | 6,437 | 921.0 | 38 |
51 | Contra Costa County, CA | 6,189 | 539.4 | 38 |
52 | Palm Beach County, FL | 6,025 | 409.5 | 38 |
53 | Pierce County, WA | 5,848 | 667.0 | 39 |
54 | Oklahoma County, OK | 5,820 | 738.6 | 39 |
55 | DeKalb County, GA | 5,792 | 768.9 | 39 |
56 | Honolulu County, HI | 5,721 | 578.7 | 40 |
57 | El Paso County, TX | 5,700 | 678.2 | 40 |
58 | Allegheny County, PA | 5,660 | 462.8 | 40 |
59 | Multnomah County, OR | 5,501 | 681.2 | 41 |
60 | Erie County, NY | 5,449 | 588.7 | 41 |
61 | Middlesex County, MA | 5,411 | 337.6 | 41 |
62 | Davidson County, TN | 5,372 | 777.2 | 42 |
63 | Monroe County, NY | 5,347 | 715.2 | 42 |
64 | Salt Lake County, UT | 5,286 | 465.5 | 42 |
65 | Guilford County, NC | 5,140 | 975.4 | 43 |
66 | Suffolk County, NY | 5,127 | 343.4 | 43 |
67 | Jefferson County, AL | 5,121 | 776.9 | 43 |
68 | Bernalillo County, NM | 5,050 | 746.2 | 43 |
69 | Orleans Parish, LA | 4,974 | 1,264.7 | 44 |
70 | Hartford County, CT | 4,858 | 542.6 | 44 |
* The top 70 counties and independent cities ranked in descending order by number of cases reported in 2018 then by rate are displayed.
NOTE: Relative rankings of counties may be impacted by completeness of the variable used to identify county. In 2018, the variable used to identify county was complete for ≤95% of cases in Connecticut, Georgia, Hawaii, and South Dakota. See Section A1.4 in the Appendix for more information.
Page last reviewed: August 20, 2019