STD Rates in Johnson County, Indiana
2023 CDC surveillance data for Johnson County, Indiana — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Johnson County reported a combined STD rate of 372.5 per 100,000 residents in 2023, placing it 32nd of 92 Indiana counties — in the upper half of the state. Reported infections included chlamydia at 307.5 per 100,000 (516 cases, 37% below the state rate), gonorrhea at 60.2 per 100,000 (101 cases, 58% below the state rate), syphilis at 4.8 per 100,000 (8 cases, too few for a reliable comparison). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Johnson County has confidential testing locations available.
STD Trends in Johnson 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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Johnson County vs Indiana and the US
| Infection | Johnson County | Indiana | US | vs Indiana | vs US | Rank in Indiana |
|---|---|---|---|---|---|---|
| Chlamydia | 307.5516 cases | 491 | 490.7 | 37.4% below | 37.3% below | 34th of 92 |
| Gonorrhea | 60.2101 cases | 144 | 178.2 | 58.2% below | 66.2% below | 32nd of 92 |
| Syphilis (P&S) | 4.88 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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