A county fair pulling 2,000 people over a weekend needs roughly 10 standard units under OSHA 1926.51(c) ratios, plus at least one ADA unit per ADA Standards 213.2. St. Louis Porta Pros builds fair restroom counts around your gate estimate, not a guess.
Start with attendance, not gut feeling. OSHA 1926.51(c) sets the construction-site ratio at 1 toilet per 20 workers, and while a fair crowd isn't a labor force, fair organizers in St. Louis use the same math as a baseline for public events: figure one unit per 200 to 250 attendees for a multi-hour event, more if beer is served. A three-day fair with midway rides, livestock barns and a grandstand stretches people across a big footprint, so St. Louis Porta Pros usually recommends splitting units between the entry gate, the midway and the barn area instead of clustering them all in one lot. Under ADA Standards 213.2, at least 5 percent of any cluster of single-user units has to be accessible, never fewer than one. That means a bank of ten units needs at least one ADA accessible porta potty with the wider door and turning space required by ADA Standards 304.3.1's 60 inch turning circle. For a fair with a beer garden or a headline concert on the grounds, pair standard units with a restroom trailer rental near the grandstand, since trailers move volume faster during intermission rushes. If you are not sure where your headcount lands, our how many porta potties do I need guide walks through the math event by event, and our event restroom rental page covers the broader planning checklist.
Fair pricing depends on unit mix, days on site and how far the grounds sit from our yard. A standard porta potty rental runs an event rate for multi-day fairs, and a deluxe flushable porta potty costs more per day but handles heavier traffic better near food vendors. Delivery adds a flat fee on top, and service visits during the fair keep tanks from filling past capacity, since a standard tank holds 60 to 70 gallons per ANSI/PSAI Z4.3 baseline service intervals.
| unit | duration | typical price |
|---|---|---|
| standard | event (multi-day) | $400 |
| standard | weekend | $250 |
| ada | weekend | $240 |
| deluxe | day | $300 |
| delivery fee | day | $150 |
Fairs near University City, 7.9 miles northwest of St. Louis, or out toward Chesterfield, 19.2 miles west, pay similar unit rates but may see delivery fees shift with distance. Check our porta potty rental cost page for the full breakdown, or the porta potty rental per day page if your fair is a single-day event rather than a weekend run. For anything longer than a week, our monthly porta potty rental rates apply instead of daily or weekly ones.
Yes, especially near food booths and livestock barns. 29 CFR 1910.141(d)(2) requires washing facilities to have soap and towels or a hand-drying device, since hand sanitizer alone doesn't satisfy that standard. A handwashing station rental placed outside the food court and another near the animal barns covers both zones. If your fair includes a spray-paint booth, a 4-H craft area using coatings, or any pesticide application near the barns, OSHA 1926.51(f)(1) requires washing facilities specifically for workers handling paints, coatings or insecticides, which is a separate requirement from general sanitation. A portable sink rental works well for vendor rows, and a hand sanitizer station rental is a fine supplement between the sinks, not a replacement for them. Grounds with existing septic tied to a barn or concession building sometimes need a pump-out before a big fair weekend; our septic pumping service and grease trap pumping pages cover that side if your fairgrounds run permanent plumbing that needs clearing before the crowds arrive. Fair sites in Belleville, 18.8 miles southeast of St. Louis, and Florissant, 15.4 miles north, both come with the same handwashing math regardless of which side of the river they sit on.
Book six to eight weeks out if your fair falls on a busy summer weekend, since event-season demand in St. Louis fills delivery slots fast. Shorter notice works for smaller fairs. Call our contact page or submit a request a quote form with your headcount and dates.
Yes, and most larger fairs do exactly that. Standard units cover the midway and barns cheaply, while a 4 stall restroom trailer or 8 stall restroom trailer handles the grandstand crowd during peak hours without long lines.
Tell us before delivery day. A roll-off or trailer delivery needs about 60 feet of straight clearance behind the truck, and grass or gravel lots sometimes need a different placement plan, which our porta potty placement guide explains in detail.
Yes, daily service is standard for anything past a single day. Our how often are porta potties cleaned page explains the service interval, and multi-day fairs typically get a mid-event service call to handle heavier traffic.
If the fair is open to the public, yes. ADA Standards 213.2 requires at least one accessible unit per cluster, and our ADA restroom requirements page breaks down clearance and door width specs in full.
Yes. St. Louis Porta Pros delivers county fair restrooms across St. Louis and the surrounding metro, with same-day and next-day drop-off available on most orders.
Pricing depends on the unit and how long you need it. See our cost breakdown and request a free quote for an exact figure.
Standard rentals include scheduled service — a pump-out, a clean, a restock and fresh deodorizer. Busy or hot-weather sites can be serviced more often.
Call now or request a free quote — clean units, on-time delivery, transparent pricing.
