ZIP Code 98555 - Lilliwaup Washington
Overview
ZIP Code 98555 is located in Lilliwaup Washington. 98555 is entirely within Mason County. Regionally, 98555 is located in Metro Seattle-Tacoma.
ZIP Code 98555 Quick Stats
| ZIP Code Name | Lilliwaup |
| Primary County | Mason County |
| ZIP Code Type | Standard |
| Population (2022) | 238 |
| Area Code(s) | 360 / 564 |
| Current Time | PDT |
ZIP Code 98555 Map
98555 Demographics
The majority race/ethnicity residing in 98555 is White. The current unemployment level in 98555 is 5.1%.
| Population | 238 |
| Population Growth Rate | -16.47% |
| Population Density | 2 People per Square Mile |
| Total Households | 147 |
| Average Adjusted Gross Income (2021) | $378,600 |
| Current Unemployment Rate (May 2026) | 5.1% |
| Sales Tax Rate (2025) | 9.2% |
| Majority Race/Ethnicity | White - 93.93% |
98555 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 294 | 93.93% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 19 | 6.07% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
98555 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 16 | 6.75% |
| Bachelor Degree | 13 | 5.49% |
| High School Diploma | 65 | 27.43% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 23 | 9.7% |
| 1 or More Years of College | 75 | 31.65% |
| Associates Degree | 0 | 0% |
| Masters Degree | 45 | 18.99% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
98555 Geography
| Coordinates | 47.5521698, -123.18854523 |
| Adjacent ZIP Codes | |
| Region | Metro Seattle-Tacoma |
| Metropolitan/Micropolitan Stat Area | Shelton, WA |
| Time Zone | Pacific Daylight Time |
| IANA Timezone | America/Los_Angeles |
| Area | 123 Square Miles |
98555 Schools
| School Districts in 98555 |
98555 Weather and Climate Data
| Plant Hardiness Zone | Zone 7b: 5F to 10F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | November 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Csb - Warm-Summer Mediterranean Climate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 1d - Volcanics | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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