ZIP 99346 · Plymouth
Who lives in ZIP code 99346 (Plymouth, WA): age, income, housing, education and work.
Source: uszips 2026 (ACS-based ZIP file)
2026 ZIP profile
Plymouth, WA · Benton County
uszips 2026
People198
Median age55.8
Household income$50,865
Home value$228,102
Median rent—
Poverty8.6%
College degree+16.7%
Commute20 min
Place
- Metro area
- Kennewick-Richland, WA
- Wider region
- Kennewick-Richland-Walla Walla, WA
- Time zone
- Pacific
- Density
- 1 / sq mi
- Housing units
- 75
County
Share of the ZIP's people in each county.
Age mix
32.8% are 65 or older; 91.4% are adults.
Household income
24.0% of households earn $100K+. Median per person: $25,592.
Education (adults 25+)
12.5% of degrees are in STEM fields.
Race
33.8% Hispanic or Latino (of any race).
Households & family
- Married
- 47.1%
- Never married
- 38.1%
- Divorced
- 6.9%
- Widowed
- 7.9%
- Family size
- 3.13
- Dual-income families
- 52.5%
Housing
- Own their home
- 94.7%
- Rent burden
- —
- Men / women
- 67% / 33%
Work
- In labor force
- 55.6%
- Unemployment
- 0.0%
- Self-employed
- 0.0%
- Farmers
- 0.0%
Community
- Charitable givers
- 0.0%
- Veterans
- 12.2%
- With a disability
- 24.2%
- No health insurance
- 14.6%
- Limited English
- 6.7%
Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.