Public toilets and restrooms in O'Fallon, MO

O'Fallon has 19 restrooms on the map: 1 open to the public and 18 in businesses for customers. 3 are open 24 hours.

Highest-rated first. Updated November 5, 2026. All of Missouri

Public restrooms

• Fort Zumwalt Park restroom

  Park restroom · No ratings yet

  O'Fallon, MO

  Partly accessible

Customers-only restrooms

Stores, cafés, and restaurants that usually let customers use the restroom. Buy something or ask staff first.

• Chick-fil-A

  Business (ask staff) · No ratings yet

  2106 Highway K, O'Fallon, MO 63368

  Customers only

  Mo-Sa 06:30-22:00; Su off

• Chick-fil-A

  Business (ask staff) · No ratings yet

  8280 Old Route N, O'Fallon, MO 63367

  Customers only

• Cracker Barrel

  Business (ask staff) · No ratings yet

  O'Fallon, MO

  Customers only

• Culver's

  Business (ask staff) · No ratings yet

  8500 Mexico Road, O'Fallon, MO 63366

  Customers only

  Mo-Su 10:30-22:00

• Culver's

  Business (ask staff) · No ratings yet

  4351 Highway K, O'Fallon, MO 63368

  Customers only

  Mo-Su 10:00-22:00

• Lowe's

  Business (ask staff) · No ratings yet

  8501 Mexico Road, O'Fallon, MO 63376

  Customers only

  Mo-Sa 06:00-22:00; Su 07:00-20:00

• McDonald's

  Business (ask staff) · No ratings yet

  2915 Highway K, O'Fallon, MO 63368

  Customers only

  24/7

• McDonald's

  Business (ask staff) · No ratings yet

  4001 Crusher Drive, O'Fallon, MO 63368

  Customers only

  Mo-Fr 05:00-23:00; Sa-Su 06:00-23:00

• McDonald's

  Business (ask staff) · No ratings yet

  1001 North Main Street, O'Fallon, MO 63366

  Customers only

  07:00-22:00

• McDonald's

  Business (ask staff) · No ratings yet

  101 McDonald Lane, O'Fallon, MO 63366

  Customers only

  Mo-Sa 07:00-22:00; Su 07:00-19:00

• Panera Bread

  Business (ask staff) · No ratings yet

  1300 Highway K, O'Fallon, MO 63366

  Customers only

  06:00-21:00

• QuikTrip

  Business (ask staff) · No ratings yet

  O'Fallon, MO

  Customers only

• QuikTrip

  Business (ask staff) · No ratings yet

  801 Belleau Creek Road, O'Fallon, MO 63366

  Customers only

• QuikTrip

  Business (ask staff) · No ratings yet

  8601 Mexico Road, O'Fallon, MO 63366

  Customers only

• QuikTrip

  Business (ask staff) · No ratings yet

  O'Fallon, MO

  Customers only

  24/7

• Target

  Business (ask staff) · No ratings yet

  2300 Highway K, O'Fallon, MO 63368

  Customers only

  Su-Th 08:00-22:00; Fr,Sa 08:00-23:00

• The Home Depot

  Business (ask staff) · No ratings yet

  1525 Highway K, O'Fallon, MO 63366

  Customers only

  Mo-Sa 06:00-22:00; Su 07:00-20:00

• Walmart Supercenter

  Business (ask staff) · No ratings yet

  1307 Highway K, O'Fallon, MO 63366

  Customers only

  24/7

Nearby cities

St. Peters (13) St. Charles County (50) Wentzville (5) Chesterfield (3) St. Charles (16) Maryland Heights (15) Wildwood (25) Bridgeton (4)