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Homeβ€ΊWashingtonβ€ΊKing Countyβ€ΊWeatherization Assistanceβ€ΊMercer Island
UTILITY β€” WA

🏚️ Weatherization Assistance in Mercer Island, King County, Washington β€” 2026

Eligibility, income limits, local offices and how to apply for Mercer Island residents

Avg $6,500 upgradesMax Benefit
1-877-337-3463Helpline
WAState
200% FPLFPL Threshold
πŸ“Š 2026 Income Limits β€” Mercer Island, Washington
Household SizeMonthly LimitAnnual Limit
1 person$1,632/mo$19,578/yr
2 people$2,215/mo$26,572/yr
3 people$2,798/mo$33,566/yr
4 people ← typical$3,482/mo$41,782/yr
5 people$4,065/mo$48,778/yr
6 people$4,648/mo$55,774/yr
7 people$5,231/mo$62,770/yr
8 people$5,814/mo$69,766/yr

Source: HHS Federal Poverty Guidelines 2026. Effective January 2026.

πŸ“ How to Apply β€” Mercer Island, Washington
1
Check Eligibility
Income at or below 200% FPL. Family of 4 in Mercer Island: $3,482/month in 2026.
2
Apply Online β€” Fastest
Visit www.energy.gov/eere/wap/contacts β€” available 24/7.
3
Apply by Phone β€” 1-877-337-3463
Call Mon–Fri business hours for Mercer Island residents.
4
Apply In-Person β€” King County Office
Visit offices near Mercer Island. Walk-ins accepted.
πŸ“‹ Documents Required β€” Mercer Island
  • Proof of income
  • Home ownership or landlord permission
  • Utility bills
❓ FAQs β€” Weatherization Assistance in Mercer Island
Who qualifies for Weatherization Assistance in Mercer Island, Washington?
Residents of Mercer Island, King County, Washington with income at or below 200% FPL. Family of 4: $3,482/month. Call 1-877-337-3463.
How to apply for Weatherization Assistance in Mercer Island?
Apply online at www.energy.gov/eere/wap/contacts, call 1-877-337-3463, or visit King County office.
Is there a Weatherization Assistance office in Mercer Island?
The nearest office is in King County. Visit office locator for exact address and hours.
πŸ”” Washington Alerts 2026
Free alerts when Weatherization Assistance changes in Washington.