STD Rates in Johnson County, Texas

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

Data Year: 2023 Source: CDC STI Surveillance Population: 202,887
Combined
330.2
per 100K
149th / 247
Chlamydia
256.3
per 100K • 520 cases
US rate: 490.7
155th of 247 in Texas
Higher than 44% of US counties
Gonorrhea
69
per 100K • 140 cases
US rate: 178.2
135th of 247 in Texas
Higher than 52% of US counties
Syphilis P&S
4.9
per 100K • 10 cases
Based on 10 cases — interpret with care
US rate: 15.8

Johnson County recorded a combined STD rate of 330.2 per 100,000 residents in 2023, ranking 149th of 247 counties in Texas. Reported infections included chlamydia at 256.3 per 100,000 (520 cases, 48% below the state rate), gonorrhea at 69.0 per 100,000 (140 cases, 61% below the state rate), syphilis at 4.9 per 100,000 (10 cases, too few for a reliable comparison). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Johnson County has confidential testing locations available.

STD Trends in Johnson 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
256.3
per 100K in 2023
151.8 in 2000
Peak 353.3 in 2015
Gonorrhea
69.0
per 100K in 2023
54.8 in 2000
Peak 117.8 in 2020
Syphilis (P&S)
4.9
per 100K in 2023
1.6 in 2000
Peak 5.1 in 2022

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

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Johnson County vs Texas and the US

Infection Johnson County Texas US vs Texas vs US Rank in Texas
Chlamydia 256.3520 cases 491.9 490.7 47.9% below 47.8% below 155th of 247
Gonorrhea 69140 cases 176.4 178.2 60.9% below 61.3% below 135th of 247
Syphilis (P&S) 4.910 cases 15 15.8 Too few cases Too few cases –

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

Johnson County ranks 149th of 247 Texas counties for combined STD rate in 2023, at 330.2 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Johnson County, with 520 cases at a rate of 256.3 per 100,000 residents.
STDTest.com lists confidential testing locations across Johnson 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.