Housing affordability indexes are generally not very meaningful in absolute terms, because they make unrealistic assumptions. But they are useful for comparing trends in relative housing affordability over time and in comparing relative housing affordability in different markets.
The chart below looks at housing affordability nationwide in the United States over the last fifteen years or so, which is a baseline against which local real estate market can be compared.
warns of widespread evictions and foreclosures once federal, state, and local pandemic protections come to an end, absent additional public and private action.
Over 11 million families are behind on their rent or mortgage payments: 2.1 million families are behind at least three months on mortgage payments, while 8.8 million are behind on rent. Homeowners alone are estimated to owe almost $90 billion in missed payments. The last time this many families were behind on their mortgages was during the Great Recession.
According to the Mortgage Bankers Association, 2.6 million mortgages (5.23% of the total) are currently in forbearance plans.
Housing prices are the dominant source of differences in cost of living between different geographic areas within the U.S., and the non-housing differences in cost of living are strongly correlated with differences in housing prices.
Median housing prices basically track the desirability of a location, which in most, but not all cases, tracks the job market for people with college degrees, some college, or a skilled trade, who make up the lion's share of the roughly two-thirds of Americans who own their own homes. Much of the U.S. has fairly affordable housing due to weak economies or other factors that make those locations undesirable.
Median housing values by state (in absolute terms) are summarized in the following map:
Regional Variation In Income
Inequality in the United States has an important spatial component. More-skilled workers tend to live in larger cities where they earn higher wages. Less-skilled workers make lower wages and do not experience similar gains even when they live in those cities. This dynamic implies that larger cities are also more unequal. These relationships appear to have become more pronounced as inequality has increased.
Republicans do well in rural areas and small towns, places with lower population density, places with lower rates of educational attainment, and places with lower housing costs, all of which are associated with lower wages and less economic inequality.
Regional Housing Price Trends And Politics
The correlation isn't perfect, but upward trends in housing costs in an area tend to be associated with local political shifts towards the Democrats, while downward trends in housing costs (and stagnant housing costs) in an area tend to be associated with local political shifts towards the Republicans.
Zillow median home price data has been compiled to show larger regional trends over the last twenty years.
The national average used as a benchmark below is 103.4% growth in home prices from January 2000 to August 2020 which is a 3.68% annualized growth rate compared to a consumer price index growth of 50.3%, implying an inflation adjusted annualized rate of 2.19%, and compared to nominal per capita U.S. GDP growth of 79.6% (the national home price increase rate was 141.4% from January 1996 to August 2020 which is a 3.79% annualized growth rate compared to a consumer price index growth of 65.0% implying an inflation adjusted annualized rate of 2.43% and compared to and nominal per capita U.S. GDP growth of 117.9%). So, home prices have also grown faster than per capita GDP and sucking up some of that economic growth.
The state by state picture (relying on the data source below) that I have compiled is as follows:
The urban areas in California, Oregon, Washington and Hawaii have seen housing prices rise much faster than the national average over the last two decades:
Meanwhile, according to the same source, housing prices in Rust Belt cities have lagged behind the nation as a whole:
Of the top 20 U.S. metros, Detroit and Chicago saw the slowest price growth over the past two decades. Flint, Michigan, was the only city in the country to see a price decline.At the state level, Illinois, Michigan, and Ohio were the bottom three in terms of home price appreciation.
Every city in New Mexico, Louisiana, Mississippi, Alabama, Georgia, South Carolina, Arkansas, Kansas, Missouri, Kentucky, Indiana, Ohio, Michigan, Wisconsin, Illinois, Iowa and Alaska lags behind the national average in housing price increases.
In Oklahoma, only three small cities out of twenty cities tracked in the state outpace the national average and those cities only do so by modest margins.
In Nebraska, only Columbus outpaced the national average, while four other cities including Omaha, lagged.
In West Virginia, eight of of nine cities lagged, while the small city of Logan had housing prices grow slightly faster than the national average.
Nashville and two smaller cities in Tennessee are have had housing prices grow slightly faster than the national average, while twenty-two more cities have lagged the national average, with Memphis at the bottom of the pack.
In Nevada, Reno and Carson City are seeing faster than average increase in housing prices, while Las Vegas has lagged significantly behind the national average.
In Florida, most big cities and their surburbs are seeing faster than average housing price growth, while Tallahassee and rural Florida is seeing housing price growth at rates below the national average.
No Texas city has seen housing prices rise significantly faster than the national average and most lag well below it.
Every Arizona city except Tuscon and Yuma has housing prices that are growing significantly faster than the national average.
Regional Disparities in Property Taxation
A Tax Foundation property tax map by state adds some additional insight:
For states, the top three are Texas, Nebraska, and Wisconsin and the lowest three are Louisiana, Hawaii, and Alabama.
The top county in the country is Orleans County, New York; the lowest, St. John the Baptist Parish, Louisiana.