Administrative assistant jobs in O'Fallon, MO and nearby

Administrative assistant jobs within 25 miles of O'Fallon, MO. Nearby towns and cities are included. Distances are straight-line, not driving distances.

Hiring at a glance

View jobs
Open jobs
24
Employers
17

Advertised starting pay

Average starting payUSD / hour
$18.28Across 12 listings

Employer-advertised starting pay, not employee salaries. Currencies and pay periods stay separate.

Where work happens

Remote
0%0 listings
Hybrid
0%0 listings
On-site
25%6 listings

Not specified: 75% (18 listings)

Employers hiring include Rockwood R-6 School District (6), ST CHARLES COUNTY GOVERNMENT (2), Torah Prep (2).

Sources & calculation notes

These figures describe the listings on this role page at the date shown, not the whole job market. Listings can change.

Employer-listed minimums from at least 10 listings per currency and pay period. These are advertised starting amounts, not employee salaries. Jobs without a minimum and unusual amounts are excluded.

Hybrid and on-site classifications may be inferred from descriptions. Check the original ad. How we count

About these jobs

Before you apply

Compare the office software, language skills and clerical experience requested in each ad. Job Bank lists secondary school and administrative training or previous clerical experience as typical requirements. Individual employers set their own criteria. Job Bank / Guichet-Emplois.

Guidance reviewed on September 16, 2026.

Based on the dated count above. Listings can change. How we count

Administrative assistant jobs in O'Fallon, MO and nearby

Within 25 miles

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  • Administrative Assistant 1 - 176 School Day

    Rockwood R-6 School District

    Chesterfield, MO

    • From $15 USD / hour
  • Administrative Assistant Sr

    USS

    Pacific, MO

    Provides superior support by handling a wide variety of administrative functions within a functional area. May be responsible for performing office tasks such as filing and/or maintaining…

  • Administrative Assistant 5 - Benefits/Wellness

    Rockwood R-6 School District

    Eureka, MO

    • From $19.39 USD / hour

    Administrative Assistant 5- Benefits/Wellness

  • Administrative Assistant 4

    Rockwood R-6 School District

    Wildwood, MO

    • From $18.19 USD / hour
  • Administrative Assistant to Content Leaders

    Francis Howell School District

    O'Fallon, MO

    The Administrative Assistant – Content Leaders provides administrative support to Content Leaders and the Academic Division. This position performs a variety of clerical, accounting,…

  • Administrative Assistant

    Southwest Foodservice Excellence, LLC

    Jennings, MO

  • Administrative Assistant - Intermediate

    ST CHARLES COUNTY GOVERNMENT

    Saint Charles, MO

    …Collector. · Relieves Collector and other department staff of administrative details. · Provides principal clerical support for Collector and other staff. · Greets, screens, and assists all…

  • Administrative Assistant 2 - 185 Day

    Rockwood R-6 School District

    Eureka, MO

    • From $16.47 USD / hour
  • Administrative Assistant Early Childhood

    Torah Prep

    University City, MO

    Torah Prep Day School is seeking an administrative assistant who is a self-starter, creative, good at problem solving, organized, and who is a team player to help coordinate operations for…

  • Administrative Assistant

    Torah Prep

    University City, MO

  • Administrative Assistant - Intermediate

    ST CHARLES COUNTY GOVERNMENT

    Saint Charles, MO

    Relieves Collector and other department staff of administrative details.

  • Administrative Assistant

    Acumen Consulting

    Richmond Heights, MO

    • $16 to $20 USD / hour

    Step into an exciting opportunity with Acumen Consulting as a Full Time Administrative Assistant in Richmond Heights, MO! This is your chance to be at the heart of a dynamic consulting…

  • Administrative Assistant

    Invenergy Services LLC

    Warrenton, MO

  • Administrative Assistant II - Finance

    City of University City

    University City, MO

    • From $50,338 USD / year

    This position provides intermediate-level administrative and clerical support to the department, including financial processing duties, by performing a variety of routine and semi-routine…

  • Administrative Assistant 2 - 185 Day

    Rockwood R-6 School District

    Eureka, MO

    • From $16.47 USD / hour
  • Administrative Assistant 2 - 188 Day

    Rockwood R-6 School District

    Chesterfield, MO

    • From $16.47 USD / hour
  • Administrative Assistant

    Sears

    Bridgeton, MO

  • Activities and Athletics Administrative Assistant

    Wright City R-2 School District

    Wright City, MO

    • $17.68 to $32.44 USD / hour

    JOB SUMMARY: The Administrative Assistant supports the efficient operation of the Activities and Athletics office by performing a wide range of clerical and administrative tasks. This role…

  • Administrative Assistant II - Primary

    Parkway School District

    Chesterfield, MO

    • $19.15 USD / hour

    …responsibility. We're looking for an amazing candidate to serve as our Administrative Assistant…

  • Administrative Assistant

    Leonardo DRS, Inc.

    Bridgeton, MO

    • $49,624 to $64,511 USD / year

    Leonardo DRS is seeking multiple highly skilled, proactive, and experienced Administrative Assistants to provide comprehensive support to Senior Leadership. This position is based out of…

  • Human Resources Administrator

    Refresco Brand

    Maryland Heights, MO

  • Administrative Assistant - University Advancement

    Washington University in St Louis

    Clayton, MO

    • $19.29 to $29.91 USD / hour
  • Administrative Assistant – Mayor’s Office

    City of St. Charles, MO

    St Charles, MO

    • From $27.27 USD / hour

    The purpose of this position is to perform a variety of clerical, executive, administrative support and office management tasks while maintaining confidentiality.

  • Administrative Assistant

    Roto-Rooter Services Company

    Hazelwood, MO

    • $18 to $22 USD / hour

    …internal growth, we have an excellent opportunity available for an Administrative Assistant at our St. Louis branch located in Hazelwood, MO. The primary role of the Branch Administrative…

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