STD Rates in Worcester County, Massachusetts
2023 CDC surveillance data for Worcester County, Massachusetts — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Worcester County recorded a combined STD rate of 416.4 per 100,000 residents in 2023, ranking 8th of 14 counties in Massachusetts. Reported infections included chlamydia at 329.1 per 100,000 (2,853 cases, 20% below the state rate), gonorrhea at 81.4 per 100,000 (706 cases, 42% below the state rate), syphilis at 5.9 per 100,000 (51 cases, 44% below the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Worcester County has confidential testing locations available.
STD Trends in Worcester County, 2000–2023
Reported cases per 100,000 residents each year, against the Massachusetts 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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Worcester County vs Massachusetts and the US
| Infection | Worcester County | Massachusetts | US | vs Massachusetts | vs US | Rank in Massachusetts |
|---|---|---|---|---|---|---|
| Chlamydia | 329.12,853 cases | 412.7 | 490.7 | 20.3% below | 32.9% below | 7th of 14 |
| Gonorrhea | 81.4706 cases | 139.8 | 178.2 | 41.8% below | 54.3% below | 9th of 14 |
| Syphilis (P&S) | 5.951 cases | 10.6 | 15.8 | 44.3% below | 62.7% below | 9th of 14 |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Massachusetts’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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