COVID Levels in Oregon
In the week ending 10 October 2026, wastewater virus levels in Oregon were High or Very High for COVID-19 at 5 of 5 sites, Flu A at 3 of 5 sites, RSV at 2 of 19 sites. COVID-19 was High or Very High at 100% of the state's sampling sites. Source: CDC wastewater surveillance.
Very High High Moderate Low Very Low
Sampling sites in Oregon 19
| Counties served | People served | COVID-19 | Flu A | RSV |
|---|---|---|---|---|
| Multnomah, Washington | 662,235 | — | — | Moderate |
| Lane | 235,155 | — | — | High |
| Marion | 229,000 | — | — | Very Low |
| Benton | 58,856 | Very High | Moderate | Very Low |
| Linn | 57,785 | — | — | Very Low |
| Clackamas, Multnomah, Washington | 40,000 | — | — | High |
| Yamhill | 34,615 | — | — | Very Low |
| Douglas | 30,000 | — | — | Very Low |
| Tillamook | 27,748 | — | — | Low |
| Clackamas, Washington | 26,597 | Very High | High | Very Low |
| Jackson | 21,105 | — | — | Very Low |
| Klamath | 20,840 | Very High | Very High | Very Low |
| Clackamas | 14,206 | — | — | Very Low |
| Columbia | 13,739 | — | — | Low |
| Malheur | 12,000 | High | High | Very Low |
| Marion | 10,840 | — | — | Very Low |
| Lincoln | 10,400 | — | — | Moderate |
| Lane | 8,925 | Very High | Moderate | Moderate |
| Lincoln | 8,865 | — | — | Very Low |
When levels are high where you live
- Stay current on vaccines for COVID-19 and flu, and RSV if you are 75+, 50–74 with risk factors, pregnant, or have an infant.
- Test if you have symptoms; antivirals for COVID-19 and flu work best in the first days and are meant for people at higher risk.
- A well-fitting mask in crowded indoor places and better ventilation cut the risk for you and for people around you.
- Stay home when sick. Outbreak news is in our epidemic record.
What this page shows, and what it misses
CDC's weekly wastewater viral activity level for each sampling site — a treatment plant or a point upstream — compared with that site's own baseline, in five categories from Very Low to Very High. State rows count sites; CDC's own state level, on its map, weighs sites differently and can differ from what these counts suggest. Places not on a sewer system, and sites that did not report this week, are not covered. Wastewater shows community spread, not the number of cases.
Data: Centers for Disease Control and Prevention, National Wastewater Surveillance System, "CDC Wastewater Viral Activity Level for SARS-CoV-2, Influenza A and RSV" (data.cdc.gov) — public domain U.S. Government work.