STD Rates in Franklin County, Pennsylvania

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

Data Year: 2023 Source: CDC STI Surveillance Population: 157,848
Combined
261
per 100K
34th / 67
Chlamydia
226.8
per 100K • 358 cases
US rate: 490.7
31st of 67 in Pennsylvania
Higher than 37% of US counties
Gonorrhea
31
per 100K • 49 cases
US rate: 178.2
38th of 67 in Pennsylvania
Higher than 26% of US counties
Syphilis P&S
3.2
per 100K • 5 cases
Based on 5 cases — interpret with care
US rate: 15.8

Franklin County recorded a combined STD rate of 261.0 per 100,000 residents in 2023, ranking 34th of 67 counties in Pennsylvania. Reported infections included chlamydia at 226.8 per 100,000 (358 cases, 46% below the state rate), gonorrhea at 31.0 per 100,000 (49 cases, 79% below the state rate), syphilis at 3.2 per 100,000 (5 cases, too few for a reliable comparison). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Franklin County.

STD Trends in Franklin 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
226.8
per 100K in 2023
0.0 in 2000
Peak 323.8 in 2021
Gonorrhea
31.0
per 100K in 2023
0.0 in 2000
Peak 76.3 in 2020
Syphilis (P&S)
3.2
per 100K in 2023
0.0 in 2000
Peak 6.4 in 2022

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

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Franklin County vs Pennsylvania and the US

Infection Franklin County Pennsylvania US vs Pennsylvania vs US Rank in Pennsylvania
Chlamydia 226.8358 cases 421.2 490.7 46.2% below 53.8% below 31st of 67
Gonorrhea 3149 cases 144.7 178.2 78.6% below 82.6% below 38th of 67
Syphilis (P&S) 3.25 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

Franklin County ranks 34th of 67 Pennsylvania counties for combined STD rate in 2023, at 261.0 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Franklin County, with 358 cases at a rate of 226.8 per 100,000 residents.
STDTest.com lists confidential testing locations across Franklin 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.