STD Rates in Knox County, Maine
2023 CDC surveillance data for Knox County, Maine — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Knox County recorded a combined STD rate of 166.0 per 100,000 residents in 2023, ranking 12th of 16 counties in Maine. Reported infections included chlamydia at 148.9 per 100,000 (61 cases, 32% below the state rate), gonorrhea at 12.2 per 100,000 (5 cases, too few for a reliable comparison), syphilis at 4.9 per 100,000 (2 cases, too few for a reliable comparison). Confidential STD testing is available throughout Knox County — knowing your status is the only way to catch infections that often show no symptoms.
STD Trends in Knox County, 2000–2023
Reported cases per 100,000 residents each year, against the Maine 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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Knox County vs Maine and the US
| Infection | Knox County | Maine | US | vs Maine | vs US | Rank in Maine |
|---|---|---|---|---|---|---|
| Chlamydia | 148.961 cases | 217.4 | 490.7 | 31.5% below | 69.7% below | 11th of 16 |
| Gonorrhea | 12.25 cases | 44.4 | 178.2 | Too few cases | Too few cases | – |
| Syphilis (P&S) | 4.92 cases | 5.3 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Maine’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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