Porta Potty Rental in Union, MO
Union is an incorporated city in Franklin County, Missouri, and we take portable toilet rental calls for any address in it. Call (888) 417-6737, answered 24/7, and we connect you with a provider that serves the site. Freezing weather is the main planning factor: about 105 nights a year reach 32°F (NOAA normals), which matters for any unit that carries water.
Updated 2026-10-13

- 1Call with the site address, dates and headcount.
- 2We connect you with a provider that serves the site.
- 3The provider confirms units, price, delivery, servicing and pickup.
Union at a Glance
Climate figures: NOAA 1991–2020 normals from the St Louis Sprt Of S L Ap, MO station, about 24 miles away. Conditions on your site can differ from the station's.
Planning Around the Weather
The closest NOAA climate-normals station, St. Louis Sprt Of S L Airport, MO, is about 24 miles from Union's Census point, far enough that conditions on your site can differ; treat the 1991–2020 normals below as a guide. DOE's Building America map puts Franklin County in the Mixed-Humid climate region (IECC 2021 zone 4A, PNNL county guide). This region gets both a real summer and a real winter, so a July rental and a January rental need different planning.
Freezing Nights
About 105 nights a year reach 32°F or below, more than most U.S. places in our data, mostly between late fall and early spring. Water-carrying units need a plan from late fall into spring: give your dates when you call and ask how hand-wash water and flush tanks are kept from freezing.
Summer Hot Spells
About 44 days a year reach 90°F, more than most U.S. places in our data; hot spells come and go rather than lasting all summer. If your dates land in a hot spell, ask for an extra service visit on multi-day rentals and keep hand-wash stations topped up.
Job Sites and Home Projects
New Housing
About 18.6% of Union's housing units were built in 2010 or later (ACS 2020–2024), above the U.S. share of 11.4% and higher than three in four U.S. places in our data: newer construction sits alongside older stock, so job sites range from new homes to additions and repairs.
Housing Mix
The most common housing type is detached houses, about 64% of units (lower than most U.S. places in our data), followed by two- to four-unit buildings at about 11% (ACS 2020–2024). Detached houses usually have a driveway or yard where a crew's unit can stand within reach of the service truck. In small multi-unit buildings where tenants stay in place during work, put the crew's unit where it does not block a shared entrance. About 39% of occupied homes are rented (owner share lower than most U.S. places in our data), so check who controls the property before a unit goes on it.
OSHA 29 CFR 1926.51 sets the floor: one toilet for up to 20 workers, then a seat and a urinal per 40 (per 50 at 200 or more). More on sizing: construction rentals in Missouri.
Events, Weddings and Parties
An all-day festival for 5,000 people over six hours needs 38 units on the PSAI event chart, or 42 to 46 with alcohol (PSAI adds 10–20%). Every cluster of restrooms needs at least 5% accessible units, rounded up, so even a two-unit cluster includes an ADA unit.
Cold, not heat, limits the outdoor season: from late fall into spring, ask for a heated restroom trailer or units that do not depend on running water. More: event rentals in Missouri and wedding restrooms in Missouri.
Who to Ask About Local Rules
Union is an incorporated city with its own municipal government. For an event on public land, or a unit that will stand on a street, sidewalk or in a park, ask the Union city government before you book what applies.
Rental Types Available
Tell us the units you want; the provider serving your site confirms what's available.
Event Porta Potty Rental
Festivals, fairs, races, parties and community events of any size.
Construction Porta Potty Rental
Job-site units sized to OSHA's construction toilet requirements.
Wedding Restroom Rental
Restroom trailers and deluxe units for outdoor ceremonies and receptions.
Restroom Trailer Rental
Flushing toilets, running water and climate control in a towable trailer.
Hand-Washing Station Rental
Freestanding sinks with fresh water and soap for events and job sites.
Nearby Locations
- Washington, MO 8 mi
- Pacific, MO 14 mi
- Sullivan, MO 18 mi
- Eureka, MO 19 mi
- Wildwood, MO 20 mi
- Ellisville, MO 24 mi
Straight-line distances between Census place points; not a service-area or travel-time claim. All Missouri locations.
Questions About Renting in Union
Can I rent porta potties in Union, MO?
Yes. Call (888) 417-6737, answered 24/7, with the Union address and dates; we connect you with a provider that serves the site, and the provider confirms units, price, delivery, servicing and pickup.
What weather should I plan for in Union?
NOAA 1991–2020 normals from the St. Louis Sprt Of S L Airport, MO station, about 24 miles away: about 44 days a year at or above 90°F, 105 nights at or below 32°F and 40 inches of precipitation. The station is more than 15 miles away, so your site can differ. Plan for freezing first: water-carrying units need winterizing or heat.
Is the weather data for Union measured in Union?
No. The nearest NOAA normals station, St. Louis Sprt Of S L Airport, MO, is about 24 miles away, so your site can be warmer, colder or wetter. Use the figures as a guide and tell us your dates.
Can I get a unit for a mobile-home setup in Union?
Yes; a setup or repair crew of up to 20 needs one toilet under OSHA 1926.51. About 8% of Union's housing units are mobile homes (ACS); in a manufactured-home community, ask management where it can stand.
Who do I ask about a permit for an event or a unit on the street in Union?
Ask the Union city government. Its special-events or street-use office can say what applies to your date.
What affects the price of a porta potty rental?
Unit type, number of units, rental length, servicing frequency and how easy the site is to reach. The provider quotes before you book.

Don't know where to start?
Call now and tell us about your event or job site. We will help you work out the units you need and connect you with a provider that serves your location.
(888) 417-6737Phones answered 24 hours a day, 7 days a week.
