Department of Numbers

Seattle, Washington Home Affordability

The data below measures home affordability for the Seattle-Bellevue-Everett, Washington metropolitan area using price-to-income and price-to-rent metrics. The maximum affordable loan amount for the median household income is also calculated.

Seattle, Washington Home Price-to-Income Index

The current price-to-income ratio for Seattle is 4.55 as determined by March 2010 Realtor median sales prices. The chart below shows a history of the ratio as an index calculated from the Federal Housing Finance Agency's Seattle HPI series.1 Median household income data for Seattle is from the Census American Community Survey.2

Price-to-Income: FHFA

Note: Index set to 100 in Q1 of 2000

Seattle, Washington Home Price-to-Income Index History

Date FHFA
March 2010 120.5
December 2009 122.8
September 2009 124.1
June 2009 128.2
March 2009 134.1

Seattle, Washington Home Price-to-Rent Index

The current price-to-rent ratio for Seattle is 24.58 as determined by March 2010 Realtor median sales prices. This ratio is calculated using household size adjusted median contract rent for Seattle. The chart below shows an index of the rent ratio calculated from the metro FHFA HPI series and the Seattle median contract rent data from the Census ACS.

Price-to-Rent: FHFA

Note: Index set to 100 in Q1 of 2000

Seattle, Washington Home Price-to-Rent Index History

Date FHFA
March 2010 118.5
December 2009 120.8
September 2009 122.1
June 2009 126.1
March 2009 131.9

Seattle, Washington Inferred Affordable Mortgage

The inferred affordable mortgage is determined by taking the median household income for Seattle, Washington and calculating the mortgage 30% of that income could afford. Traditionally, 30% of income is the maximum amount a homeowner could use towards a home loan. Inferred affordable loan values are calculated from ACS median household income and average monthly mortgage rates.

Inferred Affordable Mortgage

Date Inferred Mortgage
May 2010 $313,443
April 2010 $306,036
March 2010 $310,590
February 2010 $309,882
January 2010 $308,475
December 2009 $312,011
November 2009 $313,803
October 2009 $311,299
September 2009 $307,426
August 2009 $302,943
July 2009 $301,923
June 2009 $295,253
May 2009 $314,524

1. Specifically, FHFA data is from the non seasonally adjusted, all-transactions quarterly series.

2. Income data for the previous year is carried into the following year prior to the release of new income data.