STD Rates in Gem County, Idaho

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

Data Year: 2023 Source: CDC STI Surveillance Population: 21,076
Combined
199.3
per 100K
26th / 43
Chlamydia
180.3
per 100K • 38 cases
US rate: 490.7
24th of 43 in Idaho
Higher than 23% of US counties
Gonorrhea
19
per 100K • 4 cases
Based on 4 cases — interpret with care
US rate: 178.2
Syphilis P&S
0.0
No cases reported

Gem County recorded a combined STD rate of 199.3 per 100,000 residents in 2023, ranking 26th of 43 counties in Idaho. Reported infections included chlamydia at 180.3 per 100,000 (38 cases, 39% below the state rate), gonorrhea at 19.0 per 100,000 (4 cases, too few for a reliable comparison). No syphilis cases were reported in Gem County in 2023. Routine testing is the surest way to catch STDs early, since many produce no symptoms. Gem County has confidential testing locations available.

STD Trends in Gem County, 2000–2023

Reported cases per 100,000 residents each year, against the Idaho 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
180.3
per 100K in 2023
92.1 in 2000
Peak 379.1 in 2009
Gonorrhea
19.0
per 100K in 2023
6.6 in 2000
Peak 125.5 in 2020
Syphilis (P&S)
0.0
per 100K in 2023
0.0 in 2000
Peak 5.1 in 2021

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

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Gem County vs Idaho and the US

Infection Gem County Idaho US vs Idaho vs US Rank in Idaho
Chlamydia 180.338 cases 294.9 490.7 38.9% below 63.3% below 24th of 43
Gonorrhea 194 cases 39.6 178.2 Too few cases Too few cases –
Syphilis (P&S) 00 cases 3.8 15.8 Too few cases Too few cases –

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

Gem County ranks 26th of 43 Idaho counties for combined STD rate in 2023, at 199.3 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Gem County, with 38 cases at a rate of 180.3 per 100,000 residents.
STDTest.com lists confidential testing locations across Gem County and Idaho. 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.