Administrative Assistant Jobs in Clayton, CA

1-15 of 84 Jobs

Part-Time Office Assistant (20 Hours) - Onsite Only

  • Hayward, CA (19 miles from Clayton, CA)
  • 8 hours ago
  • Hayward, CA (19 miles from Clayton, CA)
  • 8 hours ago

Office Assistant Onsite Only (Part-time 20 hours - Mon-Fri) JOB SUMMARY: Our security system installation business is growing and expanding to other areas of sales and eCommerce. The successful...

In Person Part Time

Administrative Assistant

  • Suncrest Health Services
  • Fremont, CA (23 miles from Clayton, CA)
  • 10 hours ago
  • Fremont, CA (23 miles from Clayton, CA)
  • 10 hours ago

Assistant will handle various administrative tasks in our front office area by reporting to and assisting the Office Manager....

In Person

Business Office Assistant

  • Park Regency Retirement Center
  • Pittsburg, CA (8 miles from Clayton, CA)
  • 12 hours ago
  • Pittsburg, CA (8 miles from Clayton, CA)
  • 12 hours ago

TITLE Business Office Assistant EOE STATEMENT We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color,...

In Person

Secretary II - Bristow Middle School

  • Brentwood Union Elementary
  • Brentwood, CA (7 miles from Clayton, CA)
  • 17 hours ago
  • Brentwood, CA (7 miles from Clayton, CA)
  • 17 hours ago

Secretary II - Bristow Middle School JobID: 833 Position Type: Classified/School Secretary II Date Posted: 12/8/2025 Location: Bristow Middle School Closing Date: 12/14/2025 Additional...

In Person

Administrative Assistant

  • AppleOne
  • Walnut Creek, CA (10 miles from Clayton, CA)
  • 1 day ago
  • Walnut Creek, CA (10 miles from Clayton, CA)
  • 1 day ago

Apply for this great position as an Administrative Assistant today!...

In Person

Administrative Services Assistant - HR

  • Triune Infomatics Inc
  • Martinez, CA (16 miles from Clayton, CA)
  • 1 day ago
  • Martinez, CA (16 miles from Clayton, CA)
  • 1 day ago

Role: Administrative Services Assistant Location: Martinez, CA Duration: 3 6 Months Overview: We are seeking a detail-oriented and highly organized Administrative Services Assistant with strong...

In Person

Office Assistant

  • Oakland, CA (20 miles from Clayton, CA)
  • 1 day ago
  • Oakland, CA (20 miles from Clayton, CA)
  • 1 day ago

Part-Time or Full-Time opening available for Office Assistant in CPA firm conveniently located near the Oakland Bart Station. Our firm provides accounting, bookkeeping and tax service to...

In Person

Medical Receptionist - PN Specialty Suite-Berkeley - Full Time - 8 Hour - Days

  • John Muir Health
  • Berkeley, CA (21 miles from Clayton, CA)
  • 1 day ago
  • Berkeley, CA (21 miles from Clayton, CA)
  • 1 day ago

Greets and directs patients and visitors in the medical office reception area, as well as accepts, screens and routes incoming calls. Collects payments and is responsible for demographic updates...

In Person Full Time

Medical Receptionist - PN Gastroenterology-San Ramon - Full Time - 8 Hour - Days

  • John Muir Health
  • San Ramon, CA (11 miles from Clayton, CA)
  • 1 day ago
  • San Ramon, CA (11 miles from Clayton, CA)
  • 1 day ago

Greets and directs patients and visitors in the medical office reception area, as well as accepts, screens and routes incoming calls. Collects payments and is responsible for demographic updates...

In Person Full Time

Work Remotely! Excellent WC Legal Assistant Needed!

  • Michael Sullivan & Assoc
  • Oakland, CA (20 miles from Clayton, CA)
  • 1 day ago
  • Oakland, CA (20 miles from Clayton, CA)
  • 1 day ago

Michael Sullivan & Associates LLP is seeking a full-time Legal Assistant with workers' compensation experience to join our team in Oakland (Remote). The Legal Assistant maintains a close...

Remote

Litigation Paralegal/Legal Assistant

  • gpac
  • Walnut Creek, CA (10 miles from Clayton, CA)
  • 1 day ago
  • Walnut Creek, CA (10 miles from Clayton, CA)
  • 1 day ago

Paralegals/Legal Assistants that are looking for a great team at a great boutique firm, please reach out to me to learn about this position! You won't find a better environment to work in than at...

In Person

Medical Receptionist

  • Golden State Dermatology
  • Berkeley, CA (21 miles from Clayton, CA)
  • 1 day ago
  • Berkeley, CA (21 miles from Clayton, CA)
  • 1 day ago

Golden State Dermatology is a physician-led and owned dermatology group rapidly expanding across California, with over 37 locations. We are a leading medical, surgical, and cosmetic dermatology...

In Person

Legal Assistant BI/UM

  • United Services Automobile Association (USAA)
  • Walnut Creek, CA (10 miles from Clayton, CA)
  • 1 day ago
  • Walnut Creek, CA (10 miles from Clayton, CA)
  • 1 day ago

Why USAA? At USAA, our mission is to empower our members to achieve financial security through highly competitive products, exceptional service and trusted advice. We seek to be the #1 choice for...

In Person

Secretary I (Part-time, Temporary)

  • City of Antioch (CA)
  • Antioch, CA (7 miles from Clayton, CA)
  • 1 day ago
  • Antioch, CA (7 miles from Clayton, CA)
  • 1 day ago

Description Under general supervision, performs a variety of routine to difficult clerical support services to the Public Works Department, which may include receptionist duties, typing, word...

In Person Part Time

Medical Receptionist - PN Pediatrics-Alamo - Part Time - 8 Hour - Days

  • John Muir Health
  • Alamo, CA (7 miles from Clayton, CA)
  • 2 days ago
  • Alamo, CA (7 miles from Clayton, CA)
  • 2 days ago

Greets and directs patients and visitors in the medical office reception area, as well as accepts, screens and routes incoming calls. Collects payments and is responsible for demographic updates...

In Person Part Time

Demographic Data for Clayton, CA

Moving to Clayton, CA? Find some basic demographic data about Clayton, CA below.


Local
National
12,525
189
Medium/Sm

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Salary for Administrative Assistant Jobs in Clayton, CA

Estimated salary range based on data from US Bureau of Labor Statistics (BLS) and iHire research efforts.

Licensing / Certification

Required or preferred licenses and certifications for Administrative Assistant positions.



Highest Education Level

Administrative Assistants in Clayton, CA offer the following education background
Bachelor's Degree
36.3%
High School or GED
18.4%
Associate's Degree
16.1%
Vocational Degree or Certification
14.9%
Master's Degree
8.9%
Some College
3.7%
Doctorate Degree
1.2%
Some High School
0.5%

Average Work Experience
Here's a breakdown of the number of years' experience offered by Administrative Assistants in Clayton, CA
1-2 years
44.2%
Less than 1 year
30.3%
None
13.6%
2-4 years
10.1%
4-6 years
1.9%