What to know about St. Helens
The Columbia County Courthouse stands in St. Helens with a view toward Mount St. Helens. Source: sos.oregon.gov.
For a permitted gathering around St. Helens's courthouse area, estimate temporary restroom demand from attendance, duration, accessible routes, and servicing access.
St. Helens at a glance
- Population
- 14,552
- County
- Columbia
- Incorporated
- 1889-02-25
- Elevation
- 42 ft
The population is Portland State University’s July 1, 2025 certified estimate, published by the League of Oregon Cities. It is an estimate, not a current headcount. Certified city populations · City profile.
Plan temporary restrooms for the actual site
For temporary restrooms, estimate users by shift or event period and check fixture layout, accessible routes, water, wastewater and servicing access. The local context above helps frame the questions; the exact equipment depends on the project address and operating plan.

Prepare a useful St. Helens site brief
- Address and access. Share the exact site, placement surface, clearance, turning route and unloading point.
- Operations. State the dates, staffing or visitor pattern, daily volume and any restrictions on deliveries or servicing.
- Utilities. Document available power, potable water, wastewater arrangements and who will approve connections.
- Equipment fit. Describe the function, capacity and workflow so the team can check a proposed unit rather than relying on a category name alone.
