Side-by-side comparison of mortgage costs, property taxes, closing costs, and homeowners insurance between Idaho and Washington. Updated for 2026.
Idaho wins 4 of 6 cost categories, making it the more affordable state for homebuyers overall. With a median home price of $420K and lower overall costs, Idaho offers meaningful savings compared to Washington. Both states offer first-time buyer programs — explore the state pages for full details.
Estimated PITI payments assuming 10% down, 6.5% rate, 30-year fixed mortgage with PMI.
The monthly payment difference is $1,223/month — that’s $14,676/year or $440K over the life of a 30-year loan. Buying in Idaho is the more affordable option based on median home prices with identical loan terms.
Based on the 28% debt-to-income rule — your monthly housing payment should not exceed 28% of gross monthly income.
To afford the median home in Washington, you need a household income of approximately $177K/year. In Idaho, you need $124K/year — less by $52K/year. That $52K income gap means Idaho is accessible to a significantly wider range of households.
Idaho offers meaningfully lower home prices than Washington, with median prices running 28% less ($160K difference). This gap translates to both a smaller loan and lower monthly payments. First-time buyers priced out of Washington may find Idaho far more accessible, particularly when combined with local down payment assistance programs.
Idaho has a moderate property tax advantage at 0.63% versus Washington's 0.98%. While the rate gap of 0.35% may seem small, it translates to an annual difference of approximately $3,038 when applied to each state's median home price. Over a typical homeownership period of 7-10 years, that adds up to $24K in savings.
Both states offer down payment assistance for first-time buyers. Idaho's Idaho Housing DPA provides Up to 7% second mortgage, while Washington's WSHFC Home Advantage offers Up to $10,000 DPA. These programs can significantly reduce your upfront costs and make homeownership accessible even if you haven't saved a full 20% down payment. Check eligibility requirements on each state's housing finance agency website — income limits and purchase price caps apply.
The bottom line: Idaho and Washington are broadly similar in housing costs, with only $1,223/month separating them in total PITI payments. In cases like this, your decision should be driven by lifestyle preferences — job opportunities, climate, proximity to family, and quality of life — rather than pure cost savings. Either state offers a reasonable path to homeownership.