STD Rates in Frederick County, Maryland
2023 CDC surveillance data for Frederick County, Maryland — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Frederick County is among the lower-burden counties in Maryland, reporting a combined STD rate of 309.8 per 100,000 residents in 2023 — 20th of 24 counties. Reported infections included chlamydia at 259.7 per 100,000 (762 cases, 55% below the state rate), gonorrhea at 47.7 per 100,000 (140 cases, 77% below the state rate), syphilis at 2.4 per 100,000 (7 cases, too few for a reliable comparison). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Frederick County has confidential testing locations available.
STD Trends in Frederick County, 2000–2023
Reported cases per 100,000 residents each year, against the Maryland 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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Frederick County vs Maryland and the US
| Infection | Frederick County | Maryland | US | vs Maryland | vs US | Rank in Maryland |
|---|---|---|---|---|---|---|
| Chlamydia | 259.7762 cases | 579.8 | 490.7 | 55.2% below | 47.1% below | 19th of 24 |
| Gonorrhea | 47.7140 cases | 207.1 | 178.2 | 77% below | 73.2% below | 21st of 24 |
| Syphilis (P&S) | 2.47 cases | 14.2 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Maryland’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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