STD Rates in Chaffee County, Colorado

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

Data Year: 2023 Source: CDC STI Surveillance Population: 20,608
Combined
131
per 100K
53rd / 61
Chlamydia
101.9
per 100K • 21 cases
US rate: 490.7
53rd of 61 in Colorado
Higher than 5% of US counties
Gonorrhea
9.7
per 100K • 2 cases
Based on 2 cases — interpret with care
US rate: 178.2
Syphilis P&S
19.4
per 100K • 4 cases
Based on 4 cases — interpret with care
US rate: 15.8

Chaffee County is among the lower-burden counties in Colorado, reporting a combined STD rate of 131.0 per 100,000 residents in 2023 — 53rd of 61 counties. Reported infections included chlamydia at 101.9 per 100,000 (21 cases, 77% below the state rate), gonorrhea at 9.7 per 100,000 (2 cases, too few for a reliable comparison), syphilis at 19.4 per 100,000 (4 cases, too few for a reliable comparison). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Chaffee County has confidential testing locations available.

STD Trends in Chaffee County, 2000–2023

Reported cases per 100,000 residents each year, against the Colorado 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
101.9
per 100K in 2023
0.0 in 2000
Peak 236.9 in 2012
Gonorrhea
9.7
per 100K in 2023
0.0 in 2000
Peak 64.8 in 2021
Syphilis (P&S)
19.4
per 100K in 2023
0.0 in 2000
Peak 19.4 in 2023

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

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Chaffee County vs Colorado and the US

Infection Chaffee County Colorado US vs Colorado vs US Rank in Colorado
Chlamydia 101.921 cases 435.1 490.7 76.6% below 79.2% below 53rd of 61
Gonorrhea 9.72 cases 128.7 178.2 Too few cases Too few cases –
Syphilis (P&S) 19.44 cases 16 15.8 Too few cases Too few cases –

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

Chaffee County ranks 53rd of 61 Colorado counties for combined STD rate in 2023, at 131.0 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Chaffee County, with 21 cases at a rate of 101.9 per 100,000 residents.
STDTest.com lists confidential testing locations across Chaffee County and Colorado. 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.