Mason County, WA ZIP Codes
10 ZIP codes cover all or part of Mason County, Washington. The Census Bureau counts 67,982 residents in the county, with a median household income of $83,270 and a median home value of $411,800. Median household income ranges from $61,975 in 98588 to $138,370 in 98592. Its largest communities include Shelton, Belfair, Allyn, Grapeview and Skokomish.
Mason County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 67,982 |
| Households | 26,029 |
| Median household income | $83,270 |
| Median home value | $411,800 |
| Median age | 44.7 |
| Median rent | $1,285 |
All 10 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 76,874 |
| Households (sum of ZIP codes) | 29,230 |
| Median household income, range across ZIP codes | $61,975 (98588) to $138,370 (98592) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $83,529 |
| Homeowners | 82.1% |
| Households with kids under 18 | 24.8% |
| Moved in the past year | 11.2% |
| Carrier routes in EDDM2GO's route library | 51 routes, 29,739 homes (10 of 10 ZIP codes) |
Top facts
- Highest median household income in Mason County: 98592 ($138,370)
- Most residents: 98584 (40,606 people)
- Highest homeownership: 98524 (94.6% own their home)
- Most households with kids: 98528 (29.1% of households)
- Most new movers: 98592 (22.2% moved in last year)
- Youngest median age: 98584 (41.3 years)
- Highest median home value: 98592 ($558,400)
Every ZIP code in Mason County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 98584 | Shelton | 40,606 | 14,870 | $78,610 | $393,000 | 79.8% | 26.7% | 10.8% | 23 | 16,517 | 100% of its land |
| 98528 | Belfair | 11,940 | 4,412 | $91,058 | $430,200 | 80.6% | 29.1% | 12.6% | 8 | 4,538 | 100% of its land |
| 98541 | Elma | 10,810 | 3,870 | $78,816 | $390,000 | 78.7% | 29.0% | 9.8% | 8 | 3,877 | 41% of its land |
| 98524 | Allyn | 4,300 | 1,738 | $99,483 | $526,800 | 94.6% | 18.3% | 10.0% | 2 | 1,327 | 100% of its land |
| 98546 | Grapeview | 2,430 | 1,145 | $97,159 | $494,500 | 93.9% | 11.0% | 15.4% | 3 | 1,473 | 100% of its land |
| 98548 | Hoodsport | 2,177 | 1,122 | $68,452 | $315,000 | 91.6% | 9.2% | 7.1% | 1 | 566 | 100% of its land |
| 98588 | Tahuya | 2,114 | 873 | $61,975 | $336,300 | 91.2% | 24.5% | 10.4% | 2 | 974 | 100% of its land |
| 98592 | Union | 2,059 | 922 | $138,370 | $558,400 | 83.3% | 8.7% | 22.2% | 2 | 936 | 100% of its land |
| 98555 | Lilliwaup | 324 | 233 | — | $462,500 | 76.4% | 0.0% | 0.0% | 1 | 386 | 100% of its land |
| 98560 | Mason County | 114 | 45 | $72,596 | $526,300 | 75.6% | 42.2% | 0.0% | 1 | 46 | 100% of its land |
A ZIP code is listed for Mason County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Shelton — 10,612 residents · 1 ZIP code
- Belfair — 4,557 residents · 1 ZIP code
- Allyn — 2,404 residents · 1 ZIP code
- Grapeview — 1,088 residents · 2 ZIP codes
- Skokomish — 560 residents · 1 ZIP code
- Union — 457 residents · 1 ZIP code
- Hoodsport — 216 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Mason County — 8 ZIP codes ranked
- ZIP codes with the highest home values in Mason County — 8 ZIP codes ranked
- ZIP codes with the highest homeownership in Mason County — 8 ZIP codes ranked
- ZIP codes with the most families with kids in Mason County — 8 ZIP codes ranked
- ZIP codes with the most new movers in Mason County — 8 ZIP codes ranked
- Youngest ZIP codes in Mason County — 8 ZIP codes ranked
- Oldest ZIP codes in Mason County — 8 ZIP codes ranked
- Fastest-growing ZIP codes in Mason County — 8 ZIP codes ranked
Price a mailing to Mason County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Mason County, WA?
- 98584, 98528, 98541, 98524, 98546, 98548, 98588, 98592, 98555 and 98560. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Mason County?
- 67,982 residents in 26,029 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Mason County?
- $83,270 for the county as a whole. Its ZIP codes range from $61,975 (98588) to $138,370 (98592).
- Which Mason County ZIP code has the highest median household income?
- 98592, at $138,370, among ZIP codes with at least 1,000 residents. See the full ranking of Mason County ZIP codes by income.
- How many carrier routes and mailboxes are in Mason County?
- For the 10 of 10 ZIP codes in EDDM2GO's stored route library: 51 carrier routes reaching 29,739 residential and 901 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.