STD Rates in La Plata County, Colorado

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

Data Year: 2023 Source: CDC STI Surveillance Population: 56,412
Combined
397.1
per 100K
22nd / 61
Chlamydia
304.9
per 100K • 172 cases
US rate: 490.7
24th of 61 in Colorado
Higher than 54% of US counties
Gonorrhea
76.2
per 100K • 43 cases
US rate: 178.2
14th of 61 in Colorado
Higher than 56% of US counties
Syphilis P&S
16
per 100K • 9 cases
Based on 9 cases — interpret with care
US rate: 15.8

La Plata County reported a combined STD rate of 397.1 per 100,000 residents in 2023, placing it 22nd of 61 Colorado counties — in the upper half of the state. Reported infections included chlamydia at 304.9 per 100,000 (172 cases, 30% below the state rate), gonorrhea at 76.2 per 100,000 (43 cases, 41% below the state rate), syphilis at 16.0 per 100,000 (9 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 La Plata County.

STD Trends in La Plata 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
304.9
per 100K in 2023
0.0 in 2000
Peak 485.9 in 2017
Gonorrhea
76.2
per 100K in 2023
4.5 in 2000
Peak 102.4 in 2020
Syphilis (P&S)
16.0
per 100K in 2023
0.0 in 2000
Peak 26.5 in 2022

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

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La Plata County vs Colorado and the US

Infection La Plata County Colorado US vs Colorado vs US Rank in Colorado
Chlamydia 304.9172 cases 435.1 490.7 29.9% below 37.9% below 24th of 61
Gonorrhea 76.243 cases 128.7 178.2 40.8% below 57.2% below 14th of 61
Syphilis (P&S) 169 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

La Plata County ranks 22nd of 61 Colorado counties for combined STD rate in 2023, at 397.1 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in La Plata County, with 172 cases at a rate of 304.9 per 100,000 residents.
STDTest.com lists confidential testing locations across La Plata 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.