STD Rates in Hamilton County, Indiana
2023 CDC surveillance data for Hamilton County, Indiana — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Hamilton County recorded a combined STD rate of 280.5 per 100,000 residents in 2023, ranking 53rd of 92 counties in Indiana. Reported infections included chlamydia at 229.3 per 100,000 (852 cases, 53% below the state rate), gonorrhea at 47.4 per 100,000 (176 cases, 67% below the state rate), syphilis at 3.8 per 100,000 (14 cases, too few for a reliable comparison). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Hamilton County has confidential testing locations available.
STD Trends in Hamilton County, 2000–2023
Reported cases per 100,000 residents each year, against the Indiana 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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Hamilton County vs Indiana and the US
| Infection | Hamilton County | Indiana | US | vs Indiana | vs US | Rank in Indiana |
|---|---|---|---|---|---|---|
| Chlamydia | 229.3852 cases | 491 | 490.7 | 53.3% below | 53.3% below | 55th of 92 |
| Gonorrhea | 47.4176 cases | 144 | 178.2 | 67.1% below | 73.4% below | 44th of 92 |
| Syphilis (P&S) | 3.814 cases | 8.7 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Indiana’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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