STD Rates in Addison County, Vermont

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

Data Year: 2023 Source: CDC STI Surveillance Population: 37,722
Combined
167.1
per 100K
10th / 14
Chlamydia
140.5
per 100K • 53 cases
US rate: 490.7
12th of 14 in Vermont
Higher than 12% of US counties
Gonorrhea
23.9
per 100K • 9 cases
Based on 9 cases — interpret with care
US rate: 178.2
Syphilis P&S
2.7
per 100K • 1 cases
Based on 1 case — interpret with care
US rate: 15.8

Addison County recorded a combined STD rate of 167.1 per 100,000 residents in 2023, ranking 10th of 14 counties in Vermont. Reported infections included chlamydia at 140.5 per 100,000 (53 cases, 30% below the state rate), gonorrhea at 23.9 per 100,000 (9 cases, too few for a reliable comparison), syphilis at 2.7 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 Addison County.

STD Trends in Addison County, 2000–2023

Reported cases per 100,000 residents each year, against the Vermont 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
140.5
per 100K in 2023
88.9 in 2000
Peak 299.1 in 2019
Gonorrhea
23.9
per 100K in 2023
8.3 in 2000
Peak 38.0 in 2018
Syphilis (P&S)
2.7
per 100K in 2023
0.0 in 2000
Peak 5.4 in 2008

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

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Addison County vs Vermont and the US

Infection Addison County Vermont US vs Vermont vs US Rank in Vermont
Chlamydia 140.553 cases 201.9 490.7 30.4% below 71.4% below 12th of 14
Gonorrhea 23.99 cases 34 178.2 Too few cases Too few cases
Syphilis (P&S) 2.71 case 0.5 15.8 Too few cases Too few cases

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

Addison County ranks 10th of 14 Vermont counties for combined STD rate in 2023, at 167.1 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Addison County, with 53 cases at a rate of 140.5 per 100,000 residents.
STDTest.com lists confidential testing locations across Addison County and Vermont. 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.