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Part Time Administrative Assistant Jobs in California

Tried & True Education

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Part-Time Administrative Assistant

Westlake Village, CA · On-site

$25/hr

Tried & True Education is looking for a dependable, detail-oriented Administrative Assistant to ... * Part-time: 16-20 hours per week * Starting pay: $25 per hour * In-person, office-based position ...

Salvation Army

Part-time Administrative Assistant

Hayward, CA · On-site

$20.75 - $27.75/hr

C. KNOWLEDGE, SKILLS, ABILITIES AND OTHER QUALIFICATIONS REQUIREMENTS 1. High School diploma or GED. 2. College degree preferred. 3. Life experience in Administrative Assistant work. 4. Ability to ...

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Part Time Administrative Assistant information

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How much do part time administrative assistant jobs pay per hour?

As of Aug 23, 2026, the average hourly pay for part time administrative assistant in California is $20.77, according to ZipRecruiter salary data. Most workers in this role earn between $17.07 and $23.03 per hour, depending on experience, location, and employer.

What is a part time administrative assistant?

A Part Time Administrative Assistant provides administrative and clerical support to a business or organization on a part-time basis. Responsibilities typically include managing emails, scheduling appointments, organizing files, and handling data entry. This role requires strong organizational and communication skills, as well as proficiency with office software. Part-time hours vary depending on the employer's needs, making it a flexible job option.

What are some typical responsibilities I can expect as a part time administrative assistant?

As a Part Time Administrative Assistant, you will likely handle tasks such as answering phones, scheduling appointments, managing correspondence, filing documents, and maintaining office supplies. You may also be asked to support projects by preparing reports, organizing meetings, or assisting team members with various administrative duties. The role often requires balancing multiple priorities in a short workweek, so being flexible and organized is key. This position is a great way to gain experience in office operations and build skills that are valued in a wide range of industries.

What are the key skills and qualifications needed to thrive as a part time administrative assistant?

To thrive as a Part Time Administrative Assistant, you should have strong organizational abilities, attention to detail, basic office administration knowledge, and typically at least a high school diploma or equivalent. Familiarity with office software like Microsoft Office Suite, Google Workspace, and sometimes customer management systems (CMS) is commonly expected. Excellent time management, clear verbal and written communication, and a proactive attitude help you stand out in this role. These skills ensure office tasks are handled efficiently, supporting smooth operations while allowing you to adapt to varying workloads and team needs.

How to stay organized as a part time administrative assistant?

A part time administrative assistant can stay organized by maintaining a prioritized to-do list, using digital tools like calendars and task management software, and setting specific times for checking emails and completing tasks. Consistent filing systems and clear communication also help ensure efficiency and reduce errors.

What is the going rate for a part-time administrative assistant?

The pay for a part-time administrative assistant typically ranges from $12 to $20 per hour, depending on experience, location, and the complexity of tasks. In some regions, rates may be higher for specialized skills such as proficiency in office software or bookkeeping.

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What cities in California are hiring for Part Time Administrative Assistant jobs?

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Part Time Administrative Assistant jobs near you
Infographic showing various Part Time Administrative Assistant job openings in California as of August 2026, with employment types broken down into 2% As Needed, 79% Full Time, 16% Part Time, 1% Temporary, and 2% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $43,195 per year, or $20.8 per hour.

Temporary, Part-Time Administrative Assistant

Helix Water District

La Mesa, CA

$31.74 - $40.52/hr

Full-time, Part-time, Temporary

Posted 14 days ago

Job description

The Position

PLEASE NOTE: Applications received after Wednesday, August 19, 2026, 

will only be considered if the position is not filled.

Are you ready to bring your "get-it-done" superpowers to a team that values professionalism and a good laugh? HELIX WATER DISTRICT is looking for a part-time, temporary (up to 9 months) Administrative Assistant who enjoys tackling a wide variety of tasks - from running errands to keeping supplies stocked - and thrives in a collaborative, service-oriented environment with a strong attention to detail. The successful candidate will support our Administrative Support team based out of our Administration Office in La Mesa.

THE DETAILS:

  • FLEXIBLE SCHEDULE: While Monday - Friday is preferred, it is not required. At minimum, candidates should be available Wednesday through Friday. Hours can be scheduled anytime between 8:30 a.m. and 5:00 p.m., with the expectation that the employee is consistently available for some time in the morning through at least 3:00 p.m.
  • SALARY: $31.74 - $40.52 / hour. Where our successful candidate starts in the pay range depends on their qualifications.
  • BENEFITS: Part-time employees receive 40 hours of paid sick leave once they reach their 90th day of employment.
Overview of Responsibilities

Our temporary, part-time Administrative Assistant helps keep daily operations running seamlessly. In this role, you’ll take care of the small but essential tasks that keep the office functioning—tracking inventory, ordering supplies, setting up meeting spaces and handling quick errands that support the team’s workflow.

You’ll also assist with coordination and communication by scheduling meetings, preparing basic arrangements, answering calls and routing questions to the right staff members. Your attention ensures everything and everyone stays connected. On the practical side, you’ll manage interoffice mail bags, keep printers and equipment stocked and maintain a steady supply of materials so the workspace stays ready for use. Administratively, you’ll help process invoices, claims and other routine paperwork, supporting smooth, timely operations. While you won’t lead major projects, you’ll play an important behind-the-scenes role that keeps the office organized, well-supplied and running without a hitch.

Qualifications

Qualified candidates must have the following: 

  • Training and experience substantially equivalent to graduation from high school or GED equivalent; 

  • Minimum of five years of progressively responsible office administrative experience.

  • Valid California driver's license and ability to maintain insurability under the district's vehicle insurance policy.

Our ideal candidate will be organized, dependable and comfortable juggling a variety of small tasks that keep an office running. They are detail-oriented, enjoy helping others and have a friendly, professional approach when interacting with staff and visitors. A strong candidate can follow instructions, stay flexible as needs shift throughout the day and isn't afraid to jump in wherever support is needed.

Application Process

To be considered for this temporary, part-time Administrative Assistant position, please select the APPLY button to complete the online application and supplemental questionnaire. Resumes are not accepted in lieu of an online application. For a complete list of job responsibilities, please visit our careers page.

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