STD Rates in Yakima County, Washington

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

Data Year: 2023 Source: CDC STI Surveillance Population: 256,628
Combined
935.6
per 100K
2nd / 39
Chlamydia
743.1
per 100K • 1,907 cases
US rate: 490.7
2nd of 39 in Washington
Higher than 91% of US counties
Gonorrhea
141.1
per 100K • 362 cases
US rate: 178.2
5th of 39 in Washington
Higher than 75% of US counties
Syphilis P&S
51.4
per 100K • 132 cases
US rate: 15.8
1st of 39 in Washington
Higher than 96% of US counties

Yakima County has one of the higher STD burdens in Washington, with a combined rate of 935.6 per 100,000 residents in 2023 — ranking 2nd of 39 counties. Reported infections included chlamydia at 743.1 per 100,000 (1,907 cases, 110% above the state rate), gonorrhea at 141.1 per 100,000 (362 cases, 9% above the state rate), syphilis at 51.4 per 100,000 (132 cases, 141% above the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Yakima County has confidential testing locations available.

STD Trends in Yakima County, 2000–2023

Reported cases per 100,000 residents each year, against the Washington 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
743.1
per 100K in 2023
362.9 in 2000
Peak 847.4 in 2019
Gonorrhea
141.1
per 100K in 2023
41.3 in 2000
Peak 263.5 in 2019
Syphilis (P&S)
51.4
per 100K in 2023
1.3 in 2000
Peak 92.2 in 2022

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

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Yakima County vs Washington and the US

Infection Yakima County Washington US vs Washington vs US Rank in Washington
Chlamydia 743.11,907 cases 354.4 490.7 109.7% above 51.4% above 2nd of 39
Gonorrhea 141.1362 cases 129.6 178.2 8.9% above 20.8% below 5th of 39
Syphilis (P&S) 51.4132 cases 21.3 15.8 141.3% above 225.3% above 1st of 39

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

Yakima County ranks 2nd of 39 Washington counties for combined STD rate in 2023, at 935.6 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Yakima County, with 1,907 cases at a rate of 743.1 per 100,000 residents.
STDTest.com lists confidential testing locations across Yakima County and Washington. 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.