STD Rates in Bay County, Michigan
2023 CDC surveillance data for Bay County, Michigan — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Bay County reported a combined STD rate of 292.7 per 100,000 residents in 2023, placing it 26th of 83 Michigan counties — in the upper half of the state. Reported infections included chlamydia at 246.8 per 100,000 (253 cases, 43% below the state rate), gonorrhea at 42.0 per 100,000 (43 cases, 72% below the state rate), syphilis at 3.9 per 100,000 (4 cases, too few for a reliable comparison). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Bay County has confidential testing locations available.
STD Trends in Bay 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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Bay County vs Michigan and the US
| Infection | Bay County | Michigan | US | vs Michigan | vs US | Rank in Michigan |
|---|---|---|---|---|---|---|
| Chlamydia | 246.8253 cases | 429.5 | 490.7 | 42.5% below | 49.7% below | 23rd of 83 |
| Gonorrhea | 4243 cases | 152.2 | 178.2 | 72.4% below | 76.4% below | 33rd of 83 |
| Syphilis (P&S) | 3.94 cases | 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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