Department of Numbers

Decatur, Illinois Home Affordability

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

Decatur, Illinois Home Price-to-Income Index

The chart below shows a history of the ratio as an index calculated from the Federal Housing Finance Agency's Decatur HPI series.1 Median household income data for Decatur is from the Census American Community Survey.2

Price-to-Income: FHFA

Note: Index set to 100 in Q1 of 2000

Decatur, Illinois Home Price-to-Income Index History

Date FHFA
June 2010 106.9
March 2010 105.3
December 2009 106.6
September 2009 108.2
June 2009 108.3

Decatur, Illinois Home Price-to-Rent Index

The chart below shows an index of the rent ratio calculated from the metro FHFA HPI series and the Decatur median contract rent data from the Census ACS.

Price-to-Rent: FHFA

Note: Index set to 100 in Q1 of 2000

Decatur, Illinois Home Price-to-Rent Index History

Date FHFA
June 2010 100.9
March 2010 99.4
December 2009 100.6
September 2009 102.1
June 2009 102.1

Decatur, Illinois Inferred Affordable Mortgage

The inferred affordable mortgage is determined by taking the median household income for Decatur, Illinois 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
July 2010 $223,657
June 2010 $219,026
May 2010 $215,277
April 2010 $210,189
March 2010 $213,317
February 2010 $212,831
January 2010 $211,865
December 2009 $214,293
November 2009 $215,524
October 2009 $213,804
September 2009 $211,144
August 2009 $208,065
July 2009 $207,364

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.