STD Rates in Lake County, Indiana
2023 CDC surveillance data for Lake County, Indiana — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Lake County has one of the higher STD burdens in Indiana, with a combined rate of 738.9 per 100,000 residents in 2023 — ranking 6th of 92 counties. Reported infections included chlamydia at 567.7 per 100,000 (2,842 cases, 16% above the state rate), gonorrhea at 163.4 per 100,000 (818 cases, 13% above the state rate), syphilis at 7.8 per 100,000 (39 cases, 10% below the state rate). Confidential STD testing is available throughout Lake County — knowing your status is the only way to catch infections that often show no symptoms.
STD Trends in Lake 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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Lake County vs Indiana and the US
| Infection | Lake County | Indiana | US | vs Indiana | vs US | Rank in Indiana |
|---|---|---|---|---|---|---|
| Chlamydia | 567.72,842 cases | 491 | 490.7 | 15.6% above | 15.7% above | 6th of 92 |
| Gonorrhea | 163.4818 cases | 144 | 178.2 | 13.5% above | 8.3% below | 7th of 92 |
| Syphilis (P&S) | 7.839 cases | 8.7 | 15.8 | 10.3% below | 50.6% below | 17th of 92 |
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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