HIV & STI Statistics

STI & HIV Cases Reported in Washtenaw County Residents 2012 to 2023

STI / HIV
 2012 2013 2014 2015 2016 2017
 2018 2019 2020 2021 2022* 2023*
Chlamydia 1426 1368 1437 1643 1773 1701 1718 1785 1563 1464 1371 772
Gonorrhea 297
 227
 265
 338
 423
 560
 522 562 625 533 439 230
Syphilis (Total)  21
 39
 42
 52
 49 43 53 74 60 72 113 85
Syphilis
(Primary & Secondary)		 9 22 24 27 17 27 25 24 30 35 41 19
HIV (Newly diagnosed) (2) 24 33 28 27 27 15 29 N/A N/A N/A N/A N/A

Data Source: Washtenaw County Health Department and Michigan Disease Surveillance System

1. Syphilis (Total) includes Primary & Secondary, Congenital, and Latent disease
2. Includes confidential and anonymous cases; HIV cases exclude persons in prison

*Number of cases reported as of 10/2/2023. Reports from 2022 and 2023 are preliminary and subject to change.

Related Links

Related Documents

  1. Hepatitis C Trends in Washtenaw 2018 (PDF)
  2. HIV trends and risk factors in Washtenaw County 2012-2018 (PDF)

Maps of Chlamydia & Gonorrhea Cases in Washtenaw Teens

  1. Maps of Chlamydia and Gonorrhea Cases in Washtenaw Teens 2008 - 2010 (PDF)
  2. Maps of Chlamydia and Gonorrhea Cases in Washtenaw Teens 2011 - 2013 (PDF)
  3. Maps of Chlamydia and Gonorrhea Cases in Washtenaw Teens 2014 - 2016 (PDF)

Maps of Chlamydia & Gonorrhea Cases in Ypsilanti Teens

  1. Maps of Chlamydia and Gonorrhea Cases in Ypsilanti Teens 2008 - 2010 (PDF)
  2. Maps of Chlamydia and Gonorrhea Cases in Ypsilanti Teens 2011 - 2013 (PDF)
  3. Maps of Chlamydia and Gonorrhea Cases in Ypsilanti Teens 2014 - 2016 (PDF)

Maps of Chlamydia Cases in Washtenaw County

  1. Maps of Chlamydia Cases in Washtenaw County 2008 - 2010 (PDF)
  2. Maps of Chlamydia Cases in Washtenaw County 2011 - 2013 (PDF)
  3. Maps of Chlamydia Cases in Washtenaw County 2014 - 2016 (PDF)

Maps of Gonorrhea Cases in Washtenaw County

  1. Maps of Gonorrhea Cases in Washtenaw County 2008 - 2010 (PDF)
  2. Maps of Gonorrhea Cases in Washtenaw County 2011 - 2013 (PDF)
  3. Maps of Gonorrhea Cases in Washtenaw County 2014 - 2016 (PDF)

Maps of Chlamydia and Gonorrhea Cases in Ann Arbor and Ypsilanti

  1. Chlamydia 2014 - 2016 (PDF)
  2. Gonorrhea 2014 - 2016 (PDF)