STD Rates in Jefferson County, Pennsylvania

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

Data Year: 2023 Source: CDC STI Surveillance Population: 43,611
Combined
110.1
per 100K
61st / 67
Chlamydia
98.6
per 100K • 43 cases
US rate: 490.7
59th of 67 in Pennsylvania
Higher than 5% of US counties
Gonorrhea
11.5
per 100K • 5 cases
Based on 5 cases — interpret with care
US rate: 178.2
Syphilis P&S
0.0
No cases reported

Jefferson County is among the lower-burden counties in Pennsylvania, reporting a combined STD rate of 110.1 per 100,000 residents in 2023 — 61st of 67 counties. Reported infections included chlamydia at 98.6 per 100,000 (43 cases, 77% below the state rate), gonorrhea at 11.5 per 100,000 (5 cases, too few for a reliable comparison). No syphilis cases were reported in Jefferson County in 2023. Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Jefferson County.

STD Trends in Jefferson County, 2000–2023

Reported cases per 100,000 residents each year, against the Pennsylvania 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
98.6
per 100K in 2023
0.0 in 2000
Peak 182.7 in 2013
Gonorrhea
11.5
per 100K in 2023
0.0 in 2000
Peak 18.3 in 2017
Syphilis (P&S)
0.0
per 100K in 2023
0.0 in 2000
Peak 4.6 in 2017

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

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Jefferson County vs Pennsylvania and the US

Infection Jefferson County Pennsylvania US vs Pennsylvania vs US Rank in Pennsylvania
Chlamydia 98.643 cases 421.2 490.7 76.6% below 79.9% below 59th of 67
Gonorrhea 11.55 cases 144.7 178.2 Too few cases Too few cases –
Syphilis (P&S) 00 cases 9.1 15.8 Too few cases Too few cases –

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

Jefferson County ranks 61st of 67 Pennsylvania counties for combined STD rate in 2023, at 110.1 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Jefferson County, with 43 cases at a rate of 98.6 per 100,000 residents.
STDTest.com lists confidential testing locations across Jefferson County and Pennsylvania. 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.