STD Rates in Chittenden County, Vermont
2023 CDC surveillance data for Chittenden County, Vermont — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Chittenden County has one of the higher STD burdens in Vermont, with a combined rate of 343.4 per 100,000 residents in 2023 — ranking 2nd of 14 counties. Reported infections included chlamydia at 275.5 per 100,000 (467 cases, 36% above the state rate), gonorrhea at 67.3 per 100,000 (114 cases, 98% above the state rate), syphilis at 0.6 per 100,000 (1 case, too few for a reliable comparison). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Chittenden County has confidential testing locations available.
STD Trends in Chittenden County, 2000–2023
Reported cases per 100,000 residents each year, against the Vermont 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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Chittenden County vs Vermont and the US
| Infection | Chittenden County | Vermont | US | vs Vermont | vs US | Rank in Vermont |
|---|---|---|---|---|---|---|
| Chlamydia | 275.5467 cases | 201.9 | 490.7 | 36.5% above | 43.9% below | 2nd of 14 |
| Gonorrhea | 67.3114 cases | 34 | 178.2 | 97.9% above | 62.2% below | 1st of 14 |
| Syphilis (P&S) | 0.61 case | 0.5 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Vermont’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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