STD Rates in Rio Grande County, Colorado

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

Data Year: 2023 Source: CDC STI Surveillance Population: 11,189
Combined
464.8
per 100K
12th / 61
Chlamydia
357.5
per 100K • 40 cases
US rate: 490.7
14th of 61 in Colorado
Higher than 63% of US counties
Gonorrhea
62.6
per 100K • 7 cases
Based on 7 cases — interpret with care
US rate: 178.2
Syphilis P&S
44.7
per 100K • 5 cases
Based on 5 cases — interpret with care
US rate: 15.8

Rio Grande County has one of the higher STD burdens in Colorado, with a combined rate of 464.8 per 100,000 residents in 2023 — ranking 12th of 61 counties. Reported infections included chlamydia at 357.5 per 100,000 (40 cases, 18% below the state rate), gonorrhea at 62.6 per 100,000 (7 cases, too few for a reliable comparison), syphilis at 44.7 per 100,000 (5 cases, too few for a reliable comparison). Confidential STD testing is available throughout Rio Grande County — knowing your status is the only way to catch infections that often show no symptoms.

STD Trends in Rio Grande 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
357.5
per 100K in 2023
0.0 in 2000
Peak 594.4 in 2018
Gonorrhea
62.6
per 100K in 2023
32.2 in 2000
Peak 132.8 in 2017
Syphilis (P&S)
44.7
per 100K in 2023
0.0 in 2000
Peak 44.7 in 2023

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

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Rio Grande County vs Colorado and the US

Infection Rio Grande County Colorado US vs Colorado vs US Rank in Colorado
Chlamydia 357.540 cases 435.1 490.7 17.8% below 27.1% below 14th of 61
Gonorrhea 62.67 cases 128.7 178.2 Too few cases Too few cases –
Syphilis (P&S) 44.75 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

Rio Grande County ranks 12th of 61 Colorado counties for combined STD rate in 2023, at 464.8 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Rio Grande County, with 40 cases at a rate of 357.5 per 100,000 residents.
STDTest.com lists confidential testing locations across Rio Grande 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.