Administrative assistant jobs in Costa Mesa, CA and nearby (142 jobs)

Administrative assistant jobs within 25 miles of Costa Mesa, CA. Nearby towns and cities are included. Distances are straight-line, not driving distances.

Hiring at a glance

View jobs
Open jobs
142
Employers
106

Advertised starting pay

Average starting payUSD / hour
$24.19Across 60 listings

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

Where work happens

Remote
0%0 listings
Hybrid
1%2 listings
On-site
15%21 listings

Not specified: 84% (119 listings)

Employers hiring include Vaco (9), Elevated Resources Inc (6), JLM Strategic Talent Partners (5).

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 Costa Mesa, CA and nearby

Within 25 miles

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  • Administrative Assistant

    TAD PGS, Inc.

    Carson, CA

    • Up to $26 USD / hour

    We have an outstanding Contract position for an Administrative Assistant- Aviation/Aerospace Industry to join a leading Company located in the Carson, CA surrounding area.

  • Administrative Assistant I

    PDS Defense

    Carson, CA

    • $21 to $26 USD / hour

    PDS Defense, Inc. is seeking an Administrative Assistant I, in Carson, CA.

  • Administrative Assistant

    Vaco LLC

    Newport Beach, CA

    Our client, a well-established company in the real estate industry, is seeking a polished and professional Administrative Assistant to support their office and operations team. This is a…

  • Administrative Assistant for Speech Therapy Office

    Be Heard Speech Therapy

    LONG BEACH, CA

    Must have a flexible and positive attitude with a desire to learn

  • School Secretary II (Niguel Hills Middle School) **OPEN TO CURRENT CUSD EMPLOYEES ONLY**

    Capistrano Unified School District

    San Juan Capistrano, CA

    Laura Lyon Assistant Superintendent, Human Resource Services

  • Human Resources Administrator

    Curtin Maritime

    Long Beach, CA

    The Human Resources Administrator will provide administrative support to the People Services Department, ensuring smooth execution of onboarding, offboarding, employee relations, benefits,…

  • Senior Administrative Assistant

    Robert Half

    Irvine, CA

    • $31.35 to $36.3 USD / hour

    We are looking for a highly organized Senior Administrative Assistant to provide dedicated support to senior leadership in Irvine, California. This Long-term Contract position is ideal for…

  • Receptionist/Administrative Assistant

    VPM Management, Inc

    Irvine, CA

    • $26 to $30 USD / hour

    Must have outstanding communication skills and a good command of the English language, ensuring that all typing products are punctuated correctly · Must have a professional demeanor

  • Administrative Assistant

    Express Employment Professionals

    Anaheim, CA

    • $18 to $20 USD / hour

    Are you an organized, dependable self-starter with administrative experience? Join a growing company where you can put your office skills to work and support daily operations!

  • Sales Administrative Assistant

    Kawasaki Motors Corp., U.S.A.

    Foothill Ranch, CA

    • $26 to $29 USD / hour

    …Minimum two years related experience and/or training in an administrative support environment; or equivalent combination of education and…

  • School Administrative Assistant-High School Alternative Campus #33-27

    Newport-Mesa Unified School District

    Costa Mesa, CA

    • $5,756 to $6,996 USD / month

    There is currently one vacancy located at Early College High School (working 8 hours per day, 5 days per week, 11 months per year).*Spanish required

  • Administrative Assistant

    DMG Corp

    Orange, CA

    • $21 to $25 USD / hour

    The Office Assistant is responsible for supporting the day-to-day needs of the office by coordinating supplies, catering, meetings, building maintenance, and general office operations. This…

  • Escrow Administrative Assistant

    Integr8staff

    Tustin, CA

    • $20 to $23 USD / hour

    Must have 1 year of escrow experience

  • Receptionist/Administrative Assistant

    HDR

    Irvine, CA

    In the role of Receptionist/Administrative Assistant, we'll count on you to:

  • Commercial Property Management Administrative Assistant

    Red Tail Acquisitions

    Irvine, CA

    • $60,000 USD / year

    Job Title: Commercial Property Management Administrative Assistant

  • Staff Administrative Assistant

    Haley & Aldrich, Inc.

    Costa Mesa, CA

    • $29 to $36 USD / hour

    Must have experience working with large Word documents created from templates, applying styles, and table of contents · Must possess outstanding proofreading/technical editing skills

  • Administrative Assistant

    Premier Workspaces

    Rancho Santa Margarita, CA

    • $20 to $21 USD / hour

    Valid Driver License Required · Must have the ability to take general directions and apply to diverse and unique situations

  • Security Admin Assistant

    Allied Universal

    Seal Beach, CA

    • $29.99 USD / hour

    As a Security Admin Assistant, you will serve and safeguard clients in a range of industries such as Commercial Real Estate, Healthcare, Education, Government and more.

  • Marketing Administrative Assistant

    Boardwalk IG Management LLC

    Costa Mesa, CA

    We are seeking a highly organized, detail-oriented Marketing Administrative Assistant to support the Marketing team across Boardwalk’s portfolio.

  • Substitute Administrative Assistant

    Orange County Department of Education

    Costa Mesa, CA

    • $24 USD / hour

    …are interested in working on an on-call basis as Substitute Administrative Assistants for long-term assignments. These short-term and long-term assignments typically consist of a 7 to 8…

  • Administrative Assistant

    Think Academy US

    Irvine, CA

    • $20 USD / hour

    As a Front Desk / Administrative Assistant, you will play an essential role in supporting the daily operations of our campus and ensuring an excellent experience for students, parents,…

  • Administrative Assistant

    Yokohama Tire Corporation

    Santa Ana, CA

    The Administrative Assistant provides high-level administrative support to Human Resources and designated members of the executive leadership team, including the SVP of Human Resources,…

  • Legislative Administrative Assistant

    CSU, OFFICE OF THE CHANCELLOR

    Long Beach, CA

    • Up to $55,008 USD / year

    Legislative Administrative Assistant Apply now Job no: 562837 Work type: Staff Location: Chancellor's Office - Sacramento, Chancellor's Office Categories: Confidential, Administrative,…

  • Administrative Secretary

    Dignity Health

    Long Beach, CA

    • $25.25 to $35.67 USD / hour

    Associates Other in Administrative Assistant, Medical Administrative Assistant, Business, Office Administration, Health Science or related field and Minimum of three (3) years…

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