Costco Part-Time Jobs in Diamond Bar, CA — Hiring Now

As of October 2026, there are 58 Costco part-time openings in Diamond Bar, CA. Local pay ranges from $16 to $34/hr. Listings are updated daily — benefits start Day 1 for most positions.

Costco

Just Posted:Loss Prevention Clerk-Part Time(Contract,Diamond Bar)

Diamond Bar, CA

$20 - $24

Costco

Meat Cutter (Part Time)

Diamond Bar, CA

$18 - $27

Costco

$20-$25/hr Receiving Clerk job in Diamond Bar | Hiring

Diamond Bar, CA

$20 - $25

Costco

Supplemental Income:Hearing Aid Specialist(Diamond Bar)

Diamond Bar, CA

$25 - $33

Costco

Flexible Part-Time:Warehouse Receiver-Diamond Bar

Diamond Bar, CA

$20 - $23

Costco

Optical Associate (Part Time)

Diamond Bar, CA

$20 - $26

Costco

Pallet Jack Operator-Part Time-Diamond Bar,CA | Hiring

Diamond Bar, CA

$18 - $24

Costco

Team Member needed in Diamond Bar(Apply Now)

Diamond Bar, CA

$18 - $24

Costco

Part Time Stock Clerk

Diamond Bar, CA

$17 - $20

Costco

Student Friendly:Inventory Associate(Diamond Bar)

Diamond Bar, CA

$18 - $24

Costco

Part Time Costco Job Openings

Diamond Bar, CA

$18 - $24

Costco

Part Time Warehouse Jobs

Diamond Bar, CA

$20 - $25

Costco Part-Time Jobs in Diamond Bar — FAQ

How many Costco part-time jobs are open in Diamond Bar, CA?
There are currently 58+ Costco part-time positions in Diamond Bar, CA. New part-time roles are added regularly — check this page for the latest openings.
How much do Costco part-time jobs pay in Diamond Bar?
Costco part-time pay in Diamond Bar varies by specific role and shift. Most positions include shift differentials for nights and weekends, plus benefits starting Day 1. Browse the listings above to see pay details for each opening.
Does Costco hire for part-time positions with no experience in Diamond Bar?
Many Costco part-time positions in Diamond Bar require no prior experience. Costco provides paid training for new hires. Check individual listings for specific requirements.
How do I apply for Costco part-time jobs in Diamond Bar?
Browse the 58+ part-time listings above, click on any position for full details including pay and shift times, then follow the application link. Most Costco positions have a 15–30 minute online application.

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Other Costco Jobs in Diamond Bar

Costco Weekend Jobs in Diamond Bar

13 open positions

Costco Grocery & Fresh Jobs in Diamond Bar

9 open positions

Costco Delivery Driver Jobs in Diamond Bar

6 open positions

Costco Fulfillment Center Jobs in Diamond Bar

6 open positions

Costco Overnight Jobs in Diamond Bar

3 open positions

Costco CDL Driver Jobs in Diamond Bar

2 open positions

Costco Pharmacy Jobs in Diamond Bar

2 open positions

Costco Customer Service Jobs in Diamond Bar

1 open positions

Last updated: October 30, 2026