Administrative assistant jobs in Diamond Bar, CA and nearby
Administrative assistant jobs within 25 miles of Diamond Bar, CA. Nearby towns and cities are included. Distances are straight-line, not driving distances.
Counted
Hiring at a glance
View jobs- Open jobs
- 235
- Employers
- 153
Advertised starting pay
- Average starting payUSD / hour
- $24.42Across 117 listings
- Average starting payUSD / year
- $63,730Across 14 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
- 11%25 listings
Not specified: 89% (208 listings)
Employers hiring include JLM Strategic Talent Partners (12), Vaco LLC (7), Express Employment Professionals (6).
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
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Office Administrative Assistant (Bilingual in Chinese)
TransGlobal
The Administrative Assistant is the first point of contact for visitors and callers and plays a key role in maintaining a smooth and professional front office environment. This position is…
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Administrative Assistant
Robert Half
We are looking for an Administrative Assistant to support a fast-paced, well-organized environment in Los Angeles, California. This contract opportunity with potential for a permanent…
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Senior Administrative Assistant
Robert Half
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…
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Receptionist/Administrative Assistant
VPM Management, Inc
The Administrative Assistant will be performing receptionist and office management duties, which includes answering and routing telephone calls, greeting and assisting guests, ordering…
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HR Administrative Assistant
Epic Healthcare
We are seeking a highly organized and detail-oriented HR Administrative Assistant who
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Administrative Assistant (Remote)
Vortex Group of Companies
Vortex Group is hiring an Administrative Assistant (Remote) in Los Angeles, CA. Earn $24–$28 per hour. No experience required. Full-time and part-time options available. Remote work for…
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Administrative Assistant
Express Employment Professionals
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!
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Administrative Assistant II
Southern California Regional Rail Authority
The Administrative Assistant II will deliver professional support services, including, but not limited to, data entry, proofreading of documents and deliverables, distributing reports to…
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Administrative Assistant-Santa Fe Springs
Express Employment Professionals
Administrative Assistant – Santa Fe Springs, CA
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Senior Administrative Support Assistant (Seasonal/Temporary)
INFORMATION AND REFERRAL FEDERATION OF LOS ANGELES COUNTY
Position: Senior Administrative Support Assistant (Seasonal/Temporary)
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Roving Administrative Assistant - Meier
The John Stewart Company
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ADMINISTRATIVE ASSISTANT III / Emergency Appointment Fire
County of Los Angeles
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Administrative Assistant
Toro Aire INC
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Administrative Assistant - Manufacturing & Accounting
Express Employment Professionals
Administrative Assistant – Manufacturing & Accounting Support
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Administrative Assistant
Staffmark
If you’re all about keeping things organized and people happy, this Administrative Assistant role in Riverside is your sweet spot. You’ll handle the details, keep the team on track, and…
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Administrative Assistant I/II/III
City of Pomona
…Pomona's Development Services - Code Compliance division as an Administrative Assistant…
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ADMINISTRATIVE ASSISTANT II/CORRECTIONAL HEALTH
County of Los Angeles
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ADMINISTRATIVE ASSISTANT III/CORRECTIONAL HEALTH
County of Los Angeles
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Finance/Accounting Financial Administrative Assistant
Aya Healthcare
Aya Healthcare has an immediate opening for a Travel Finance/Accounting Financial Administrative Assistant job in Los Angeles, California paying $527.00 to $756.00 weekly. This is a 13-week…
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Administrative Assistant
BakeMark
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Administrative Assistant III
Randstad USA
Are you an organized administrative professional looking for a dynamic role with hybrid flexibility? A prominent investment management organization in Los Angeles is seeking an…
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Administrative Assistant Reception
TEKsystems
The Administrative Assistant serves as the first point of contact for clients and callers, creating a welcoming and professional office environment. This role provides administrative and…
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Admin Assistant 3
University of California, Irvine
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Escrow Administrative Assistant
Integr8staff
Job Summary of the Escrow Administrative Assistant position