Facebooktwitterpinterestmail

The number and percentage of Illinois children birth through age 5 living in families above 200% FPL.

The most recent data for Economic Security is from 2014.

2014 Data

ILLINOIS 2013 2014 Percent Change*
Number of children birth through age 5 living in families above 200% FPL 549,361 541,715 -1.39%
Percentage of children through age 5 living in families above 200% FPL 56.44% 56.24% -0.35%
UNITED STATES 2013 2014 Percent Change*
Number of children through age 5 living in families above 200% FPL 12,482,102 12,379,706 -0.82%
Percentage of children through age 5 living in families above 200% FPL 52.48% 52.22% -0.5%
*See Methodology for an explanation of how we reached these numbers and real life examples.

Methodology

Math Refresher: Calculating percentage change between a variable’s values in time t and in time t-1

equation-econ-security

What does this really mean?
  1. Calculate the difference between the two values you are comparing.
  2. Divide the difference by the original number. Then, multiply the result by 100. Note that we are not calculating a percent point change, but a percent change. If you wanted a percent point change you would simply subtract and find the difference.
  3. A positive number indicates a percentage increase, while negative number indicates a percentage decrease.
  4. Values can be:
    • Natural numbers {1,2,3,…}
    • Rational numbers {0.25, 0.37, 0.56, …}
    • Percentage numbers (just another expression of rational numbers)
Two examples from real life:
Example 1

Your son in high school got 64.24% and 74.24% in his mid-test and final test, respectively. What is the percentage difference between the two tests?

Short answer: His final test score is 10 percentage points higher than his mid-test score. This is an example of a percent point change.

Insightful answer:
He made 15.6% improvement in his final. (Recall, calculation yields positive number that suggests a percentage increase). This is an example of a percent change.

Example 2

There were two defective guitars produced, out of a total of 100 guitars (hence, defect rate is 2%). Eddie Van Halen, as a production manager, has been trying to improve reliability. Now, there is one defective guitar produced, again, out of a total of 100 guitars (hence, defect rate is 1%). What is the difference in the defect rates?

Short answer: The difference in the defect rates is 1 percentage point. This is an example of a percent point change.

Insightful answer: Eddie Van Halen has helped to reduce the defect rates by 50%. (Recall, calculation yields negative number that suggests a percentage decrease). This is an example of a percent change.

Source of data: Data was gathered from the 2010-2015 ACS 5-year estimates. For more detailed methodology, visit our Data Releases & Methodology page.

Data Spreadsheets

The spreadsheets contain data from the U.S. Census Bureau. Users can access national, state, county, and school district data for the total number of children birth through age 5 as well as the number and percent of children birth through age 5 living in families with an income above 200% FPL.

Change over Time

These charts show how children’s economic security in individual Illinois counties compares over time with Cook County, the state of Illinois, and the United States. The bar chart shows the change in the percent of children birth through age 5 living in families with incomes above 200% FPL from 2013 to 2014. The next chart shows changes over time from 2009 to 2014.

Note: Cook County is included in each PDF.

Note: Each PDF has 2 pages of charts.

econ-factor-example2
Example: portion of a data chart