| City: | Seattle, Washington |
| City Alias: | Tukwila |
| County: | King County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 10:14:20 AM |
| Population: | No Population Data |
| Area Codes: | 206 / 425 |
| Classification: | PO Box |
| Coordinates: | 47.6064, -122.3308 |
| Quick Link: |
ZIP code 98138 serves as a PO Box facility in the Seattle-Tukwila area of King County, Washington. The postal designation covers just one street address for carrier delivery: W Andover Park, which has 92 recorded delivery points with unit designations. However, the facility's primary function is providing 401 PO Boxes to customers, with 265 business boxes among them.
This isn't a residential community. The ZIP operates within the Tukwila Urban Center neighborhood, but it doesn't serve typical household delivery. There's no recorded population living at addresses assigned to 98138, and the land area is effectively zero. Instead, the facility functions as a postal service point embedded within the larger 98188 ZIP code area. Customers using these boxes likely reside or operate businesses elsewhere in the greater Seattle metropolitan area, choosing this location for mail convenience or business purposes.
The single street address, W Andover Park, indicates this is a focused postal facility serving one specific location or building complex in the Tukwila area.
ZIP Code 98138 supports both business and residential activity. According to the Business Census (2024), there are 11 business establishments, employing about 77 people with an annual payroll of $5,247,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 1,180Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 11Source: CBP |
| 1st Quarter Payroll: | $1,502,000Source: CBP |
| Annual Payroll: | $5,247,000Source: CBP |
| # of Employees: | 77Source: CBP |
ZIP Code 98138 is located in King County, Washington, within the Seattle-Tacoma-Bellevue, WA Metropolitan Statistical Area (CBSA 42660) and Washington's 9th Congressional District. This Metro area has a population of 3,439,809 people, about 0.00% of whom live in ZIP Code 98138, and is subdivided into the Seattle-Bellevue-Kent, WA division. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Seattle-Tacoma-Bellevue, WASource: Census |
| CBSA Number: | 42660Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Seattle-Bellevue-Kent, WA (CBSA Div 42644)Source: Census |
| CBSA Population: | 3,439,809Source: Census |
| MSA: | Seattle-Tacoma-Bremerton, WA CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 09Source: USPS |
| Congressional Land Area: | 183.43 sq miSource: Census |
| PMSA: | Seattle-Bellevue-Everett, WA PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 5363000Source: Census |
| Place Name: | Seattle city; WashingtonSource: Census |
We could not locate which school district 98138 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.