Costco Wholesale – 4th Ave S Location (Seattle, WA)
Operating schedule, street address (4401 4th Ave S), direct phone line, and department hours for the 4th Ave S location in Seattle, Washington.
Seattle Metro Location Notice: Multiple Branches in Area
The Seattle metropolitan market is served by multiple Costco Wholesale facilities. This directory page specifically displays hours, phone lines, and department amenities for the 4401 4th Ave S (4th Ave S) branch.
4401 4th Ave S
Seattle, WA 98134
Connect directly with store customer service, prescription status, or store inventory confirmation during active hours.
Data Source: Based on Costco Wholesale official member schedule disclosures.
Timezone: America/Los_Angeles
Seattle Branch Operating Hours
America/Los_Angeles| Day | Opening Time | Closing Time | Special Notes |
|---|---|---|---|
| Sunday | 10:00 AM | 6:00 PM | Executive members enter at 9:00 AM; pharmacy closed |
| Monday | 10:00 AM | 8:30 PM | Executive members enter at 9:00 AM; gas station 6:00 AM–10:00 PM |
| Tuesday | 10:00 AM | 8:30 PM | Executive members enter at 9:00 AM; gas station 6:00 AM–10:00 PM |
| Wednesday | 10:00 AM | 8:30 PM | Executive members enter at 9:00 AM; gas station 6:00 AM–10:00 PM |
| Thursday | 10:00 AM | 8:30 PM | Executive members enter at 9:00 AM; gas station 6:00 AM–10:00 PM |
| Friday | 10:00 AM | 8:30 PM | Executive members enter at 9:00 AM; gas station 6:00 AM–10:00 PM |
| Saturday | 9:30 AM | 7:00 PM | Executive members enter at 9:00 AM; gas station 6:00 AM–8:30 PM |
Shopping Guide & Location Overview: Costco Wholesale in Seattle, WA
Serving the greater Seattle metropolitan area, this confirmed Costco Wholesale branch at 4401 4th Ave S provides convenient access for residents and commuters across Washington. Operating within the America/Los_Angeles time zone, the store adheres to standard regional retail cycles, maintaining a predictable weekly schedule designed to serve morning errands, lunchtime shoppers, and after-work visits.
When planning your visit, note that customer traffic peaks on Saturday afternoons and weekday evenings between 4:30 PM and 7:00 PM. Shoppers seeking rapid checkout times or specialized counter consultations (such as returns, bulk inquiries, or specialized department assistance) are encouraged to visit during the quietest operational window between 10:00 AM and 1:00 PM on Tuesday through Thursday.
Parking accommodations at this location feature dedicated customer parking bays, accessible stalls adjacent to main entrances, and convenient turnaround access for app-based pickup services. If you require assistance regarding item availability, specialized holiday schedules, or wheelchair accessibility, contacting the store front desk at (206) 622-1144 prior to departure will ensure a seamless shopping experience.