Federal Reserve Economic Data

Table Data - 90% Confidence Interval Upper Bound of Estimate of Median Household Income for Williamson County, IL

Title 90% Confidence Interval Upper Bound of Estimate of Median Household Income for Williamson County, IL
Series ID MHICIUBIL17199A052NCEN
Source U.S. Census Bureau
Release Small Area Income and Poverty Estimates
Seasonal Adjustment Not Seasonally Adjusted
Frequency Annual
Units Dollars
Date Range 1989-01-01 to 2022-01-01
Last Updated 2023-12-14 1:10 PM CST
Notes The U.S. Census Bureau provides annual estimates of income and poverty statistics for all school districts, counties, and states through the Small Area Income and Poverty Estimates (SAIPE) program. The bureau's main objective with this program is to provide estimates of income and poverty for the administration of federal programs and the allocation of federal funds to local jurisdictions. In addition to these federal programs, state and local programs use the income and poverty estimates for distributing funds and managing programs.

Household income includes income of the householder and all other people 15 years and older in the household, whether or not they are related to the householder. Median is the point that divides the household income distributions into two halves: one-half with income above the median and the other with income below the median. The median is based on the income distribution of all households, including those with no income.

A confidence interval is a range of values, from the lower bound to the respective upper bound, that describes the uncertainty surrounding an estimate. A confidence interval is also itself an estimate. It is made using a model of how sampling, interviewing, measuring, and modeling contribute to uncertainty about the relation between the true value of the quantity we are estimating and our estimate of that value. The "90%" in the confidence interval listed above represents a level of certainty about our estimate. If we were to repeatedly make new estimates using exactly the same procedure (by drawing a new sample, conducting new interviews, calculating new estimates and new confidence intervals), the confidence intervals would contain the average of all the estimates 90% of the time. For more details about the confidence intervals and their interpretation, see this explanation.
DATE VALUE
1989-01-01 25558
1990-01-01 .
1991-01-01 .
1992-01-01 .
1993-01-01 28519
1994-01-01 .
1995-01-01 32724
1996-01-01 .
1997-01-01 34213
1998-01-01 35530
1999-01-01 34443
2000-01-01 36085
2001-01-01 35295
2002-01-01 36100
2003-01-01 37019
2004-01-01 38611
2005-01-01 38089
2006-01-01 39320
2007-01-01 41138
2008-01-01 41611
2009-01-01 42108
2010-01-01 45075
2011-01-01 44052
2012-01-01 43131
2013-01-01 46609
2014-01-01 50044
2015-01-01 51023
2016-01-01 50955
2017-01-01 53774
2018-01-01 49597
2019-01-01 60250
2020-01-01 63716
2021-01-01 60929
2022-01-01 69464

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