STD Rates in Miami County, Ohio

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

Data Year: 2023 Source: CDC STI Surveillance Population: 110,877
Combined
299.4
per 100K
40th / 88
Chlamydia
237.2
per 100K • 263 cases
US rate: 490.7
43rd of 88 in Ohio
Higher than 39% of US counties
Gonorrhea
61.3
per 100K • 68 cases
US rate: 178.2
27th of 88 in Ohio
Higher than 48% of US counties
Syphilis P&S
0.9
per 100K • 1 cases
Based on 1 case — interpret with care
US rate: 15.8

Miami County reported a combined STD rate of 299.4 per 100,000 residents in 2023, placing it 40th of 88 Ohio counties — in the upper half of the state. Reported infections included chlamydia at 237.2 per 100,000 (263 cases, 49% below the state rate), gonorrhea at 61.3 per 100,000 (68 cases, 64% below the state rate), syphilis at 0.9 per 100,000 (1 case, 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 Miami County.

STD Trends in Miami County, 2000–2023

Reported cases per 100,000 residents each year, against the Ohio 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.

Chlamydia
237.2
per 100K in 2023
82.8 in 2000
Peak 325.3 in 2019
Gonorrhea
61.3
per 100K in 2023
14.1 in 2000
Peak 90.1 in 2020
Syphilis (P&S)
0.9
per 100K in 2023
1.0 in 2000
Peak 6.3 in 2022

Source: CDC NCHHSTP AtlasPlus county surveillance, 2000–2023.

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Miami County vs Ohio and the US

Infection Miami County Ohio US vs Ohio vs US Rank in Ohio
Chlamydia 237.2263 cases 461.7 490.7 48.6% below 51.7% below 43rd of 88
Gonorrhea 61.368 cases 168 178.2 63.5% below 65.6% below 27th of 88
Syphilis (P&S) 0.91 case 16.3 15.8 Too few cases Too few cases –

Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Ohio’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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FAQs

Miami County ranks 40th of 88 Ohio counties for combined STD rate in 2023, at 299.4 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Miami County, with 263 cases at a rate of 237.2 per 100,000 residents.
STDTest.com lists confidential testing locations across Miami County and Ohio. Many offer same-day appointments with results in 1–3 days.
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.