The average monthly mortgage rate for a Washington home with a single-family home was $2,085, according to data from Zillow.
But the rate can go as high as $3,000 or as low as $1,500 depending on the size of the home and the location of the property, the website said.
It noted that, for a home with two or more units, the mortgage rate is capped at 25 percent.
The home also is subject to state tax.
The average rate for single-detached homes in Washington was 4.2 percent in November.
Washington’s median home value in November was $1.4 million.
But prices are up by $8,000, or 1.8 percent, since the beginning of the year, according, Zillo said.
The rate for detached homes in November averaged 4.4 percent.
Zillos data also showed the median home price in the state of Washington dropped by $500 in November to $742,000.
ZILLO said that the average annual interest rate on a mortgage in Washington State was 6.6 percent, but that the rates for mortgages with a 3.75 percent down payment and a 3 percent downpayment were not statistically different.
Zellos data shows that the median interest rate for all properties in Washington in November is 6.7 percent.
But there are some caveats to the data.
Zettos data does not include the value of any equity, which is typically the price of the house, which can affect the mortgage rates.
Zilliow reported that the rate for properties with less than 10 percent equity declined by 2.2 percentage points to 3.5 percent in October.
It also said that homeowners with less equity have been experiencing higher loan delinquencies.
The Zillows data also shows that prices in Washington have been rising faster than incomes, which means that homeowners in the middle of the income spectrum have seen prices go up by more than 10 to 30 percent.
For some homeowners, the rise in prices is not only due to higher prices, but the increasing number of properties in their area.
For example, Zellow said the median value of a home in the Seattle metro area rose from $721,000 in October 2016 to $1 million in November, which was the most recent month for which data was available.
The median home in Spokane, Washington, rose by $10,000 to $834,000 and was up by 7.5 percentage points in November from the previous month.