Washington County, Idaho home prices
Typical home $386,307 · +2.3% in a year · property tax 0.49%
The typical home in Washington County is worth $386,307, 19% less than the Idaho typical home ($476,754). Values changed +2.3% in the past year and +20.4% over five years. Homeowners here pay a median 0.49% of their home's value in property tax each year ($1,904 on the typical home), versus 0.42% statewide.
Mortgage on the typical Washington County home
| Down payment | Cash down | Loan | Principal + interest | PMI / MIP | Tax + insurance | Total / month | Income needed |
|---|---|---|---|---|---|---|---|
| 20% down | $77,261 | $309,046 | $2,079 | $0 | $352 | $2,431 | $104,200 |
| 10% down | $38,631 | $347,677 | $2,339 | $145 | $352 | $2,836 | $121,500 |
| 5% down | $19,315 | $366,992 | $2,469 | $153 | $352 | $2,974 | $127,400 |
| 3.5% down (FHA) | $13,521 | $379,310 | $2,552 | $171 | $352 | $3,074 | $131,800 |
Assumes a 30-year fixed loan at 7.11%, property tax of 0.49% of the home value a year, homeowners insurance of 0.6% a year, PMI of 0.5% of the loan a year when the down payment is under 20%, and FHA mortgage insurance of 0.55% a year plus a 1.75% upfront premium added to the loan. Your rate, taxes and insurance will differ.
What it takes: see what you can afford by salary in Idaho.
Idaho counties with similar prices
| County | Typical home | 1-yr change | Tax rate |
|---|---|---|---|
| Lemhi County | $387,464 | +6.9% | 0.35% |
| Bingham County | $384,891 | +3.6% | 0.5% |
| Nez Perce County | $390,046 | +2.5% | 0.78% |
| Twin Falls County | $380,622 | +3.3% | 0.61% |
| Custer County | $394,611 | +10.9% | 0.29% |
| Camas County | $376,032 | +8.4% | 0.37% |
| Bonneville County | $400,373 | +1.6% | 0.5% |
| Jerome County | $400,477 | +3.2% | 0.63% |
| Bear Lake County | $402,207 | +2.8% | 0.41% |
| Payette County | $412,388 | +3.8% | 0.4% |
Frequently asked questions
What is the average home price in Washington County, ID?
The typical home value in Washington County is $386,307 (Zillow Home Value Index, September 2026).
How much do you need to earn to buy a house in Washington County?
About $104,200 a year for the typical home with 20% down at a 7.11% 30-year rate.
What is the property tax rate in Washington County?
The median effective rate is 0.49% of home value a year (Census ACS 2024 5-year estimates).