STD Rates in Carroll County, Maryland

2023 CDC surveillance data for Carroll County, Maryland — chlamydia, gonorrhea, and syphilis rates with state comparisons.

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Data Year: 2023 Source: CDC STI Surveillance Population: 176,704
Combined
155.7
per 100K
23rd / 24
Chlamydia
126.2
per 100K • 223 cases
Gonorrhea
25.5
per 100K • 45 cases
Syphilis P&S
4
per 100K • 7 cases

Carroll County is among the lower-burden counties in Maryland, reporting a combined STD rate of 155.7 per 100,000 residents in 2023 — 23rd of 24 counties. Reported infections included chlamydia at 126.2 per 100,000 (223 cases, 78% below the state rate), gonorrhea at 25.5 per 100,000 (45 cases, 88% below the state rate), syphilis at 4.0 per 100,000 (7 cases, 72% below the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Carroll County has confidential testing locations available.

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Carroll County vs Maryland Average

Infection Carroll County Maryland Rate Difference
Chlamydia 126.2 579.8 78% below
Gonorrhea 25.5 207.1 88% below
Syphilis (P&S) 4 14.2 72% below

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Largest cities in Carroll County, Maryland

Largest first, by Census population. Each city page lists nearby clinics, free and low-cost testing, and labs.

STD testing in Eldersburg, MD31,695 people → STD testing in Westminster, MD20,445 people → STD testing in Mount Airy, MD9,805 people →

Largest Counties in Maryland

Montgomery County → Prince George's County → Baltimore County → Anne Arundel County → Baltimore City → Howard County → Frederick County → Harford County → Charles County → Washington County →

All 24 Maryland counties → STD testing in Maryland →

FAQs

Carroll County ranks 23rd of 24 Maryland counties for combined STD rate in 2023, at 155.7 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Carroll County, with 223 cases at a rate of 126.2 per 100,000 residents.
STDTest.com lists confidential testing locations across Carroll County and Maryland. Many offer same-day appointments with results in 1–3 days.

Related Resources

STD Testing Window Periods How Soon After Sex to Test STD Symptoms Guide Testing Timeline Chart All Testing Clinics STD Statistics and Data
Data sourced from the CDC's annual STI Surveillance Report. Rates are per 100,000 population and reflect reported cases only — actual prevalence is likely higher due to undiagnosed infections. While we strive for accuracy, STDTest.com makes no representations or warranties regarding the completeness or accuracy of this data and is not responsible for any errors or omissions. This page is for informational purposes only and does not constitute medical advice.
Sources