Chart assignment

Charts to read and discuss

Read each chart, then answer its questions. Every chart shows its source and date; open it for a table of the numbers and the data to download.

  1. How much have U.S. home prices risen since 1975?
  2. What is the typical household income in each state?

Chart 1 of 2 · Housing

How much have U.S. home prices risen since 1975?

The interactive chart needs JavaScript. The numbers are on the chart's page.

In the second quarter of 2026, FHFA's index of U.S. home prices reached 720, about 12 times its level in early 1975 (the index is 100 in the first quarter of 1980). Prices fell about 19% from their early-2007 peak to mid-2012 in the housing bust, then rose about 37% in just over two years from early 2020. The index follows repeat sales and refinance appraisals of the same single-family houses with mortgages backed by Fannie Mae or Freddie Mac, and it is not adjusted for inflation.

Questions to discuss

  1. In one sentence of your own, what does this chart show?
  2. Find the biggest change or difference in the chart. What might explain it?
  3. Who collected these numbers, and how recent are they? What else would you want to know before drawing a conclusion?

Source: Federal Housing Finance Agency (FHFA), House Price Index, all-transactions index for the U.S. (Public domain (U.S. government work; FHFA)) · Data as of Jun 30, 2026

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Chart 2 of 2 · Income and poverty

What is the typical household income in each state?

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In the Census Bureau's 5-year survey ending in 2024, the typical household in District of Columbia earned $109,870 a year, the most, followed by Massachusetts ($103,960) and Maryland ($103,678). Mississippi was lowest at $56,447, and the U.S. median was $80,734. These are 5-year estimates in 2024 dollars, each with a margin of error.

How to read this chart

Each bar is the median household income in a state: half of households earn more and half earn less. The dashed line is the whole U.S., for comparison. These are survey estimates, and each has a margin of error: the true value is likely within that range, so states with overlapping ranges may not really differ.

Questions to discuss

  1. Find your state. Is it above or below the U.S. median, and by about how much?
  2. Why do statisticians often use the median instead of the average (mean) for income?
  3. Housing and groceries cost more in some states. What would you need to know to compare what these incomes can buy?

Source: U.S. Census Bureau, American Community Survey 5-year estimates (Public domain (U.S. government work). This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.) · Data as of Dec 31, 2024

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