STD Rates in Brazos County, Texas

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

Data Year: 2023 Source: CDC STI Surveillance Population: 244,712
Combined
850.4
per 100K
15th / 247
Chlamydia
614.6
per 100K • 1,504 cases
US rate: 490.7
16th of 247 in Texas
Higher than 86% of US counties
Gonorrhea
223.1
per 100K • 546 cases
US rate: 178.2
11th of 247 in Texas
Higher than 87% of US counties
Syphilis P&S
12.7
per 100K • 31 cases
US rate: 15.8
76th of 247 in Texas
Higher than 68% of US counties

Brazos County has one of the higher STD burdens in Texas, with a combined rate of 850.4 per 100,000 residents in 2023 — ranking 15th of 247 counties. Reported infections included chlamydia at 614.6 per 100,000 (1,504 cases, 25% above the state rate), gonorrhea at 223.1 per 100,000 (546 cases, 26% above the state rate), syphilis at 12.7 per 100,000 (31 cases, 15% below the state rate). Confidential STD testing is available throughout Brazos County — knowing your status is the only way to catch infections that often show no symptoms.

STD Trends in Brazos County, 2000–2023

Reported cases per 100,000 residents each year, against the Texas 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
614.6
per 100K in 2023
378.6 in 2000
Peak 699.4 in 2017
Gonorrhea
223.1
per 100K in 2023
181.8 in 2000
Peak 253.3 in 2022
Syphilis (P&S)
12.7
per 100K in 2023
1.3 in 2000
Peak 12.8 in 2022

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

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Brazos County vs Texas and the US

Infection Brazos County Texas US vs Texas vs US Rank in Texas
Chlamydia 614.61,504 cases 491.9 490.7 24.9% above 25.2% above 16th of 247
Gonorrhea 223.1546 cases 176.4 178.2 26.5% above 25.2% above 11th of 247
Syphilis (P&S) 12.731 cases 15 15.8 15.3% below 19.6% below 76th of 247

Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Texas’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

Brazos County ranks 15th of 247 Texas counties for combined STD rate in 2023, at 850.4 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Brazos County, with 1,504 cases at a rate of 614.6 per 100,000 residents.
STDTest.com lists confidential testing locations across Brazos County and Texas. 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.