STD Rates in St. Louis City, Missouri
2023 CDC surveillance data for St. Louis City, Missouri — chlamydia, gonorrhea, and syphilis rates with state comparisons.
St. Louis City has one of the higher STD burdens in Missouri, with a combined rate of 2,201.6 per 100,000 residents in 2023 — ranking 1st of 115 counties. Reported infections included chlamydia at 1340.9 per 100,000 (3,778 cases, 169% above the state rate), gonorrhea at 809.9 per 100,000 (2,282 cases, 301% above the state rate), syphilis at 50.8 per 100,000 (143 cases, 136% above the state rate). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across St. Louis City.
STD Trends in St. Louis City, 2000–2023
Reported cases per 100,000 residents each year, against the Missouri 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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St. Louis City vs Missouri and the US
| Infection | St. Louis City | Missouri | US | vs Missouri | vs US | Rank in Missouri |
|---|---|---|---|---|---|---|
| Chlamydia | 1340.93,778 cases | 498.6 | 490.7 | 168.9% above | 173.3% above | 1st of 115 |
| Gonorrhea | 809.92,282 cases | 201.9 | 178.2 | 301.1% above | 354.5% above | 1st of 115 |
| Syphilis (P&S) | 50.8143 cases | 21.5 | 15.8 | 136.3% above | 221.5% above | 5th of 115 |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Missouri’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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