STD Rates in Weld County, Colorado
2023 CDC surveillance data for Weld County, Colorado — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Weld County reported a combined STD rate of 415.9 per 100,000 residents in 2023, placing it 19th of 61 Colorado counties — in the upper half of the state. Reported infections included chlamydia at 343.3 per 100,000 (1,234 cases, 21% below the state rate), gonorrhea at 66.5 per 100,000 (239 cases, 48% below the state rate), syphilis at 6.1 per 100,000 (22 cases, 62% 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 Weld County.
STD Trends in Weld County, 2000–2023
Reported cases per 100,000 residents each year, against the Colorado 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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Weld County vs Colorado and the US
| Infection | Weld County | Colorado | US | vs Colorado | vs US | Rank in Colorado |
|---|---|---|---|---|---|---|
| Chlamydia | 343.31,234 cases | 435.1 | 490.7 | 21.1% below | 30% below | 17th of 61 |
| Gonorrhea | 66.5239 cases | 128.7 | 178.2 | 48.3% below | 62.7% below | 20th of 61 |
| Syphilis (P&S) | 6.122 cases | 16 | 15.8 | 61.9% below | 61.4% below | 27th of 61 |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Colorado’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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