STD Rates in Washington County, Pennsylvania

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

Data Year: 2023 Source: CDC STI Surveillance Population: 210,200
Combined
288.3
per 100K
28th / 67
Chlamydia
225.5
per 100K • 474 cases
US rate: 490.7
34th of 67 in Pennsylvania
Higher than 36% of US counties
Gonorrhea
62.3
per 100K • 131 cases
US rate: 178.2
18th of 67 in Pennsylvania
Higher than 48% of US counties
Syphilis P&S
0.5
per 100K • 1 cases
Based on 1 case — interpret with care
US rate: 15.8

Washington County reported a combined STD rate of 288.3 per 100,000 residents in 2023, placing it 28th of 67 Pennsylvania counties — in the upper half of the state. Reported infections included chlamydia at 225.5 per 100,000 (474 cases, 46% below the state rate), gonorrhea at 62.3 per 100,000 (131 cases, 57% below the state rate), syphilis at 0.5 per 100,000 (1 case, 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 Washington County.

STD Trends in Washington 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
225.5
per 100K in 2023
0.0 in 2000
Peak 308.7 in 2018
Gonorrhea
62.3
per 100K in 2023
0.0 in 2000
Peak 79.7 in 2012
Syphilis (P&S)
0.5
per 100K in 2023
0.0 in 2000
Peak 4.3 in 2018

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

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Washington County vs Pennsylvania and the US

Infection Washington County Pennsylvania US vs Pennsylvania vs US Rank in Pennsylvania
Chlamydia 225.5474 cases 421.2 490.7 46.5% below 54% below 34th of 67
Gonorrhea 62.3131 cases 144.7 178.2 56.9% below 65% below 18th of 67
Syphilis (P&S) 0.51 case 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

Washington County ranks 28th of 67 Pennsylvania counties for combined STD rate in 2023, at 288.3 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Washington County, with 474 cases at a rate of 225.5 per 100,000 residents.
STDTest.com lists confidential testing locations across Washington 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.