STD Rates in Lehigh County, Pennsylvania
2023 CDC surveillance data for Lehigh County, Pennsylvania — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Lehigh County has one of the higher STD burdens in Pennsylvania, with a combined rate of 617.8 per 100,000 residents in 2023 — ranking 7th of 67 counties. Reported infections included chlamydia at 491.6 per 100,000 (1,857 cases, 17% above the state rate), gonorrhea at 121.2 per 100,000 (458 cases, 16% below the state rate), syphilis at 5.0 per 100,000 (19 cases, too few for a reliable comparison). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Lehigh County.
STD Trends in Lehigh County, 2000–2023
Reported cases per 100,000 residents each year, against the Pennsylvania 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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Lehigh County vs Pennsylvania and the US
| Infection | Lehigh County | Pennsylvania | US | vs Pennsylvania | vs US | Rank in Pennsylvania |
|---|---|---|---|---|---|---|
| Chlamydia | 491.61,857 cases | 421.2 | 490.7 | 16.7% above | 0.2% above | 5th of 67 |
| Gonorrhea | 121.2458 cases | 144.7 | 178.2 | 16.2% below | 32% below | 8th of 67 |
| Syphilis (P&S) | 519 cases | 9.1 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Pennsylvania’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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