STD Rates in Marion County, Illinois
2023 CDC surveillance data for Marion County, Illinois — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Marion County reported a combined STD rate of 455.4 per 100,000 residents in 2023, placing it 28th of 102 Illinois counties — in the upper half of the state. Reported infections included chlamydia at 368.1 per 100,000 (135 cases, 34% below the state rate), gonorrhea at 87.3 per 100,000 (32 cases, 57% below the state rate). No syphilis cases were reported in Marion County in 2023. Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Marion County.
STD Trends in Marion County, 2000–2023
Reported cases per 100,000 residents each year, against the Illinois 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.
Know your status — get tested today
Same-day testing at 4,500+ locations. No appointment needed. Results in 1–3 days.
Marion County vs Illinois and the US
| Infection | Marion County | Illinois | US | vs Illinois | vs US | Rank in Illinois |
|---|---|---|---|---|---|---|
| Chlamydia | 368.1135 cases | 557.7 | 490.7 | 34% below | 25% below | 28th of 102 |
| Gonorrhea | 87.332 cases | 202.3 | 178.2 | 56.8% below | 51% below | 38th of 102 |
| Syphilis (P&S) | 00 cases | 11.6 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Illinois’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.
Find a clinic near you
4,500+ testing locations nationwide. 100% confidential. Most insurance accepted.
