STD Rates in Cascade County, Montana
2023 CDC surveillance data for Cascade County, Montana — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Cascade County has one of the higher STD burdens in Montana, with a combined rate of 462.9 per 100,000 residents in 2023 — ranking 7th of 51 counties. Reported infections included chlamydia at 372.2 per 100,000 (316 cases, 15% above the state rate), gonorrhea at 66.0 per 100,000 (56 cases, 3% below the state rate), syphilis at 24.7 per 100,000 (21 cases, 10% below the state rate). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Cascade County.
STD Trends in Cascade 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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Cascade County vs Montana and the US
| Infection | Cascade County | Montana | US | vs Montana | vs US | Rank in Montana |
|---|---|---|---|---|---|---|
| Chlamydia | 372.2316 cases | 322.6 | 490.7 | 15.4% above | 24.1% below | 9th of 51 |
| Gonorrhea | 6656 cases | 67.7 | 178.2 | 2.5% below | 63% below | 11th of 51 |
| Syphilis (P&S) | 24.721 cases | 27.5 | 15.8 | 10.2% below | 56.3% above | 9th of 51 |
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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