STD Rates in San Juan County, New Mexico

2023 CDC surveillance data for San Juan County, New Mexico — chlamydia, gonorrhea, and syphilis rates with state comparisons.

Data Year: 2023 Source: CDC STI Surveillance Population: 120,669
Combined
1074
per 100K
1st / 32
Chlamydia
747.5
per 100K • 902 cases
US rate: 490.7
1st of 32 in New Mexico
Higher than 91% of US counties
Gonorrhea
248.6
per 100K • 300 cases
US rate: 178.2
2nd of 32 in New Mexico
Higher than 89% of US counties
Syphilis P&S
77.9
per 100K • 94 cases
US rate: 15.8
1st of 32 in New Mexico
Higher than 98% of US counties

San Juan County has one of the higher STD burdens in New Mexico, with a combined rate of 1,074.0 per 100,000 residents in 2023 — ranking 1st of 32 counties. Reported infections included chlamydia at 747.5 per 100,000 (902 cases, 43% above the state rate), gonorrhea at 248.6 per 100,000 (300 cases, 47% above the state rate), syphilis at 77.9 per 100,000 (94 cases, 113% above the state rate). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across San Juan County.

STD Trends in San Juan County, 2000–2023

Reported cases per 100,000 residents each year, against the New Mexico 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
747.5
per 100K in 2023
329.7 in 2000
Peak 887.7 in 2018
Gonorrhea
248.6
per 100K in 2023
25.4 in 2000
Peak 417.4 in 2021
Syphilis (P&S)
77.9
per 100K in 2023
1.8 in 2000
Peak 77.9 in 2023

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

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San Juan County vs New Mexico and the US

Infection San Juan County New Mexico US vs New Mexico vs US Rank in New Mexico
Chlamydia 747.5902 cases 523.6 490.7 42.8% above 52.3% above 1st of 32
Gonorrhea 248.6300 cases 169 178.2 47.1% above 39.5% above 2nd of 32
Syphilis (P&S) 77.994 cases 36.6 15.8 112.8% above 393% above 1st of 32

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

San Juan County ranks 1st of 32 New Mexico counties for combined STD rate in 2023, at 1,074.0 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in San Juan County, with 902 cases at a rate of 747.5 per 100,000 residents.
STDTest.com lists confidential testing locations across San Juan County and New Mexico. 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.