STD Rates in Lake County, Montana
2023 CDC surveillance data for Lake County, Montana — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Lake County has one of the higher STD burdens in Montana, with a combined rate of 393.0 per 100,000 residents in 2023 — ranking 12th of 51 counties. Reported infections included chlamydia at 342.0 per 100,000 (114 cases, 6% above the state rate), gonorrhea at 48.0 per 100,000 (16 cases, too few for a reliable comparison), syphilis at 3.0 per 100,000 (1 case, too few for a reliable comparison). Confidential STD testing is available throughout Lake County — knowing your status is the only way to catch infections that often show no symptoms.
STD Trends in Lake County, 2000–2023
Reported cases per 100,000 residents each year, against the Montana 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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Lake County vs Montana and the US
| Infection | Lake County | Montana | US | vs Montana | vs US | Rank in Montana |
|---|---|---|---|---|---|---|
| Chlamydia | 342114 cases | 322.6 | 490.7 | 6% above | 30.3% below | 11th of 51 |
| Gonorrhea | 4816 cases | 67.7 | 178.2 | Too few cases | Too few cases | – |
| Syphilis (P&S) | 31 case | 27.5 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Montana’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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