STD Rates in Glenn County, California

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

Data Year: 2023 Source: CDC STI Surveillance Population: 28,130
Combined
398.1
per 100K
38th / 58
Chlamydia
323.5
per 100K • 91 cases
US rate: 490.7
32nd of 58 in California
Higher than 57% of US counties
Gonorrhea
53.3
per 100K • 15 cases
Based on 15 cases — interpret with care
US rate: 178.2
Syphilis P&S
21.3
per 100K • 6 cases
Based on 6 cases — interpret with care
US rate: 15.8

Glenn County recorded a combined STD rate of 398.1 per 100,000 residents in 2023, ranking 38th of 58 counties in California. Reported infections included chlamydia at 323.5 per 100,000 (91 cases, 34% below the state rate), gonorrhea at 53.3 per 100,000 (15 cases, too few for a reliable comparison), syphilis at 21.3 per 100,000 (6 cases, too few for a reliable comparison). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Glenn County has confidential testing locations available.

STD Trends in Glenn County, 2000–2023

Reported cases per 100,000 residents each year, against the California 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
323.5
per 100K in 2023
0.0 in 2000
Peak 433.2 in 2019
Gonorrhea
53.3
per 100K in 2023
0.0 in 2000
Peak 116.4 in 2022
Syphilis (P&S)
21.3
per 100K in 2023
0.0 in 2000
Peak 21.3 in 2023

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

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Glenn County vs California and the US

Infection Glenn County California US vs California vs US Rank in California
Chlamydia 323.591 cases 491.1 490.7 34.1% below 34.1% below 32nd of 58
Gonorrhea 53.315 cases 190.2 178.2 Too few cases Too few cases
Syphilis (P&S) 21.36 cases 16.3 15.8 Too few cases Too few cases

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

Glenn County ranks 38th of 58 California counties for combined STD rate in 2023, at 398.1 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Glenn County, with 91 cases at a rate of 323.5 per 100,000 residents.
STDTest.com lists confidential testing locations across Glenn County and California. 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.