Key Center, WA ZIP Codes
3 ZIP codes serve Key Center, Washington: 98329, 98349 and 98394. Together they are home to 17,375 residents in 7,210 households. That is more than the 3,544 people counted inside Key Center Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $75,875 in 98349 to $110,316 in 98329.
Key Center Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 3,544 |
| Households | 1,441 |
| Median household income | $105,781 |
| Median home value | $613,200 |
| Median age | 45.9 |
| Median rent | $1,705 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 17,375 |
| Households (sum of ZIP codes) | 7,210 |
| Median household income, range across ZIP codes | $75,875 (98349) to $110,316 (98329) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $98,681 |
| Homeowners | 88.4% |
| Households with kids under 18 | 26.1% |
| Moved in the past year | 10.9% |
| Carrier routes in EDDM2GO's route library | 12 routes, 6,383 homes (3 of 3 ZIP codes) |
Top facts
- Highest median household income in Key Center: 98329 ($110,316)
- Most residents: 98329 (11,552 people)
- Highest homeownership: 98329 (89.2% own their home)
- Most households with kids: 98329 (31.6% of households)
- Most new movers: 98349 (20.8% moved in last year)
- Youngest median age: 98329 (42.9 years)
- Highest median home value: 98329 ($518,700)
Every ZIP code in Key Center
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 98329 | Gig Harbor | 11,552 | 4,518 | $110,316 | $518,700 | 89.2% | 31.6% | 7.2% | 6 | 4,125 | 27% of its land |
| 98349 | Lakebay | 4,931 | 2,305 | $75,875 | $370,200 | 87.4% | 16.5% | 20.8% | 5 | 1,934 | 14% of its land |
| 98394 | Vaughn | 892 | 387 | — | $572,400 | 85.3% | 18.9% | 4.5% | 1 | 398 | 88% of its land |
A ZIP code is listed for Key Center when at least 10% of its land lies inside the Key Center Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Key Center. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Key Center.
Counties
- Pierce County — 59 ZIP codes
Nearby cities sharing these ZIP codes
- Gig Harbor — 3 ZIP codes
Price a mailing to Key Center ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Key Center, WA?
- 98329, 98349 and 98394. A ZIP code is listed for Key Center when at least 10% of its land lies inside the Key Center Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Key Center.
- What is the population of Key Center, WA?
- The Census Bureau counts 3,544 residents inside Key Center Census-designated place (ACS 2020–2024). The 3 ZIP codes that serve Key Center hold 17,375 residents in all.
- What is the median household income in Key Center, WA?
- $105,781 inside Key Center Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $75,875 to $110,316.
- Which Key Center ZIP code has the highest median household income?
- 98329, at $110,316, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Key Center, WA?
- For the 3 of 3 ZIP codes in EDDM2GO's stored route library: 12 carrier routes reaching 6,383 residential and 74 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.