Costco Part-Time Jobs in Ontario, CA — Start This Week

As of September 2026, there are 17 Costco part-time openings in Ontario, CA. Local pay ranges from $18 to $33/hr. Listings are updated daily — benefits start Day 1 for most positions.

Costco

Meat Wrapper

Ontario, CA

$19 - $26

Costco

Office Assistant(Part-Time)-Ontario

Ontario, CA

$20 - $25

Costco

Administrative Jobs

Ontario, CA

$24 - $32

Costco

Ontario Hiring:Part-Time Employment Opportunities

Ontario, CA

$20 - $32

Costco

Maintenance & Security

Ontario, CA

$21 - $27

Costco

Flexible Part-Time:Warehouse Associate-Ontario

Ontario, CA

$21 - $28

Costco

Part Time(Gig)-Ontario

Ontario, CA

$18 - $25

Costco

Ontario Job:Optical Associate(Part-Time)

Ontario, CA

$21 - $30

Costco

HR Clerk

Ontario, CA

$20 - $22

Costco

Stocking Associate

Ontario, CA

$20 - $23

Costco

Urgent Hire:Data Entry Clerk(Flexible,Ontario)

Ontario, CA

$20 - $25

Costco

Urgent Hire:Accounts Payable Clerk(Flexible,Ontario)

Ontario, CA

$20 - $29

Costco Part-Time Jobs in Ontario — FAQ

How many Costco part-time jobs are open in Ontario, CA?
There are currently 17+ Costco part-time positions in Ontario, CA. New part-time roles are added regularly — check this page for the latest openings.
How much do Costco part-time jobs pay in Ontario?
Costco part-time pay in Ontario 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 Ontario?
Many Costco part-time positions in Ontario 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 Ontario?
Browse the 17+ 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.

Costco Part-Time Jobs in Other Cities

Costco Part-Time Jobs in Springfield

94 open positions

Costco Part-Time Jobs in Lakewood

76 open positions

Costco Part-Time Jobs in Columbia

70 open positions

Costco Part-Time Jobs in Columbus

63 open positions

Costco Part-Time Jobs in Bloomington

63 open positions

Costco Part-Time Jobs in Pomona

55 open positions

Costco Part-Time Jobs in Anaheim

54 open positions

Costco Part-Time Jobs in Greenville

52 open positions

Costco Part-Time Jobs in San Jose

51 open positions

Costco Part-Time Jobs in Long Beach

50 open positions

Other Costco Jobs in Ontario

Costco Warehouse Jobs in Ontario

43 open positions

Costco Grocery & Fresh Jobs in Ontario

11 open positions

Costco Fulfillment Center Jobs in Ontario

9 open positions

Costco Delivery Driver Jobs in Ontario

3 open positions

Costco Weekend Jobs in Ontario

3 open positions

Costco Overnight Jobs in Ontario

2 open positions

Costco CDL Driver Jobs in Ontario

1 open positions

Costco Pharmacy Jobs in Ontario

1 open positions

Last updated: September 15, 2026