STD Rates in Cass County, Michigan
2023 CDC surveillance data for Cass County, Michigan — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Cass County has one of the higher STD burdens in Michigan, with a combined rate of 358.2 per 100,000 residents in 2023 — ranking 19th of 83 counties. Reported infections included chlamydia at 304.0 per 100,000 (157 cases, 29% below the state rate), gonorrhea at 52.3 per 100,000 (27 cases, 66% below the state rate), syphilis at 1.9 per 100,000 (1 case, too few for a reliable comparison). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Cass County.
STD Trends in Cass County, 2000–2023
Reported cases per 100,000 residents each year, against the Michigan rate (dashed). In a county this size a handful of cases moves the rate a long way, so read the shape rather than any single year.
Source: CDC NCHHSTP AtlasPlus county surveillance, 2000–2023.
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Cass County vs Michigan and the US
| Infection | Cass County | Michigan | US | vs Michigan | vs US | Rank in Michigan |
|---|---|---|---|---|---|---|
| Chlamydia | 304157 cases | 429.5 | 490.7 | 29.2% below | 38% below | 17th of 83 |
| Gonorrhea | 52.327 cases | 152.2 | 178.2 | 65.6% below | 70.7% below | 26th of 83 |
| Syphilis (P&S) | 1.91 case | 8.4 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Michigan’s counties. The US rate is all 50 states combined. Comparisons are left out where fewer than 20 cases were reported, because a rate built on so few cases can swing widely from one year to the next.
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