STD Rates in Brown County, Indiana

2023 CDC surveillance data for Brown County, Indiana — chlamydia, gonorrhea, and syphilis rates with state comparisons.

Data Year: 2023 Source: CDC STI Surveillance Population: 15,660
Combined
134.1
per 100K
86th / 92
Chlamydia
89.4
per 100K • 14 cases
Based on 14 cases — interpret with care
US rate: 490.7
Gonorrhea
44.7
per 100K • 7 cases
Based on 7 cases — interpret with care
US rate: 178.2
Syphilis P&S
0.0
No cases reported

Brown County is among the lower-burden counties in Indiana, reporting a combined STD rate of 134.1 per 100,000 residents in 2023 — 86th of 92 counties. Reported infections included chlamydia at 89.4 per 100,000 (14 cases, too few for a reliable comparison), gonorrhea at 44.7 per 100,000 (7 cases, too few for a reliable comparison). No syphilis cases were reported in Brown County in 2023. Routine testing is the surest way to catch STDs early, since many produce no symptoms. Brown County has confidential testing locations available.

STD Trends in Brown 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.

Chlamydia
89.4
per 100K in 2023
0.0 in 2000
Peak 186.5 in 2021
Gonorrhea
44.7
per 100K in 2023
0.0 in 2000
Peak 70.7 in 2021
Syphilis (P&S)
0.0
per 100K in 2023
0.0 in 2000
Peak 19.3 in 2022

Source: CDC NCHHSTP AtlasPlus county surveillance, 2000–2023.

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Brown County vs Indiana and the US

Infection Brown County Indiana US vs Indiana vs US Rank in Indiana
Chlamydia 89.414 cases 491 490.7 Too few cases Too few cases –
Gonorrhea 44.77 cases 144 178.2 Too few cases Too few cases –
Syphilis (P&S) 00 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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FAQs

Brown County ranks 86th of 92 Indiana counties for combined STD rate in 2023, at 134.1 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Brown County, with 14 cases at a rate of 89.4 per 100,000 residents.
STDTest.com lists confidential testing locations across Brown County and Indiana. Many offer same-day appointments with results in 1–3 days.
Data sourced from the CDC's annual STI Surveillance Report. Rates are per 100,000 population and reflect reported cases only — actual prevalence is likely higher due to undiagnosed infections. While we strive for accuracy, STDTest.com makes no representations or warranties regarding the completeness or accuracy of this data and is not responsible for any errors or omissions. This page is for informational purposes only and does not constitute medical advice.