Lilliwaup, WA · standard
ZIP Code 98555
Mason County, Washington - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 599
- 11/sq mi
- $462,500
- Median home value
- 36.3%
- Bachelor's or higher
The verdict
Lilliwaup pairs upper-quartile home values, in a rural, homeowner-dominated area.
- Top 15%
- home value, US ZIPs
- 11
- people per sq mi
- 76%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 98555 against every reporting US ZIP.
ZIP code 98555 is a sparsely populated ZIP (a standard USPS delivery area) in Lilliwaup, Mason County, Washington, home to just 599 residents across 53.0 square miles, a density of 11 people per square mile, in the Los Angeles time zone.
Median household income is not on file for ZIP 98555, but per-capita income is $55,077. 16.7% of residents live below the poverty line, and the unemployment rate reads 0.0%. Median home value sits at $462,500 (10% below the state average), median rent at - a month, and owner-occupancy at 76.4%.
A solid share of residents have a four-year degree: 36.3% of adults hold a bachelor's degree or higher, the median age is 67.2, and the average commute is -. To put 98555 in local context, 1 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Mason County, for a geography-aware comparison.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 98555, Lilliwaup, WA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
599
Population
53.0
Area (sq mi)
11
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 98555?
67.2
Median Age
70.4%
Male
29.6%
Female
0.0%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$55,077
Per Capita Income
16.7%
Poverty Rate
0.0%
Unemployment Rate
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
793
Total Housing Units
233
Occupied Units
560
Vacant Units
1.39
Avg Household Size
Occupancy Type
$462,500
Median Home Value
-10% vs state
1981
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 9 business establishments in ZIP 98555, employing approximately 121 people with a combined annual payroll of $6,062,000.
9
Businesses
121
Employees
$6.1M
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Other services (except public administration) | 3 | 33.3% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 98555 vs 98588 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 98588 | Tahuya, WA | 1,829 | 6.6 mi |
More ZIP Codes in Mason County
Related Areas
Frequently Asked Questions
What county is ZIP code 98555 in? ▼
What is the population of ZIP code 98555? ▼
What is the average home value in ZIP 98555? ▼
What is the demographic makeup of ZIP 98555? ▼
How many businesses are in ZIP code 98555? ▼
What is the education level in ZIP code 98555? ▼
What percentage of residents own vs. rent in ZIP 98555? ▼
What is the poverty rate in ZIP code 98555? ▼
Read our methodology to see how this data is sourced, computed, and verified.