FY 2020 Income Limits Documentation System
Median Family Income Calculation Methodology
Estimates of median family income for metropolitan and nonmetropolitan areas are developed as follows:
 The U.S. Census Bureau's 20132017 ACS median family income estimates are used as a basis for calculating HUD's FY2020 MFIs. In areas where the 2017 5year ACS estimate is smaller than the reported margin of error, the state nonmetro estimate of median family income is used.
 In areas where there is a 2017 1year ACS estimate of median family income that exceeds its margin of error, the 1year ACS estimate becomes the basis for median family income.
 Once the appropriate 2017 ACS data has been selected, an inflation factor based on the CBO forecast of the national CPI is calculated to inflate the estimate from mid2012 to April, 2020 (or mid FY2020).
$inputname$ does not have published local area 1year 2017 ACS Survey results.
MFI Step by Step Calculation for $inputname$
 The following are the 2017 American Community Survey 5year median income estimate and margin of error for , :
Area 
ACS_{2017} 5Year Median Income 
ACS_{2017} 5Year Margin of Error 
Ratio 
Result 
, 


/ =

< 1
Use ACS_{2017} , Median Income 
 Since there is no ACS_{2017} 1year estimate available, the ACS_{2017} 5year value is used for the estimate of median income and the ACS update factor is set to 1.0
 The calculation of the CPI Inflation Factor is as follows:
Area 
FY2020 CPI 
2017 Annual CPI 
CPI Inflation Factor 
, 
241.64 
229.599 
(241.64 / 229.599) = 1.05244 
 The FY 2020 median family income is estimated as follows:
Area 
ACS_{2017} 5Year Estimate 
CPI Inflation Factor 
FY 2020 Area MFI Estimate 
, 

1.05244 
( * 1.05244) = $1 
 In keeping with HUD policy, the median family income estimate is rounded to the nearest $100:
Area 
Unrounded FY 2020 MFI Estimate 
Rounded FY 2020 MFI Estimate 
, 
$1 
$0 
NOTE: Due to differences in the computing platforms used to generate the official FY 2020 MFI estimates, and this
web system, the calculated value of $0 is different that the official value of
because of rounding.
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