Over the last 30 years, the disparity between prices in the 20 most expensive and 20 least expensive housing markets has only continued to grow. Trulia's Blog staffer Ralph McLaughlin takes a look at the divergence occurring in the housing market as the least expensive markets fall further behind the most expensive markets.

One of the site's findings is that since 1986 the price difference between the most and least expensive metros has risen from 144% to 319%:

In 1986, the average price of a home in the most expensive metros was $127,058, or 144% more expensive than the average price of $52,022 in the least expensive. By 2016, the most expensive metros grew to an average price of $493,504, or 319% more expensive that the average price of $117,827 in the least expensive metros

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