STD Rates in Harford County, Maryland
2023 CDC surveillance data for Harford County, Maryland — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Harford County recorded a combined STD rate of 415.3 per 100,000 residents in 2023, ranking 14th of 24 counties in Maryland. Reported infections included chlamydia at 316.3 per 100,000 (837 cases, 45% below the state rate), gonorrhea at 90.3 per 100,000 (239 cases, 56% below the state rate), syphilis at 8.7 per 100,000 (23 cases, 39% below the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Harford County has confidential testing locations available.
STD Trends in Harford 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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Harford County vs Maryland and the US
| Infection | Harford County | Maryland | US | vs Maryland | vs US | Rank in Maryland |
|---|---|---|---|---|---|---|
| Chlamydia | 316.3837 cases | 579.8 | 490.7 | 45.4% below | 35.5% below | 14th of 24 |
| Gonorrhea | 90.3239 cases | 207.1 | 178.2 | 56.4% below | 49.3% below | 13th of 24 |
| Syphilis (P&S) | 8.723 cases | 14.2 | 15.8 | 38.7% below | 44.9% below | 10th of 24 |
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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