Over three years ago HUD warned of "the worst rental affordability crisis ever," citing statistics that

About half of renters spend more than 30 percent of their income on rent, up from 18 percent a decade ago, according to newly released research by Harvard’s Joint Center for Housing Studies. Twenty-seven  percent of renters are paying more than half of their income on rent. 

This is a serious real-world issue. I have been tracking rental vacancies, construction, and rents ever since.  The Q2 2018 report on vacancies and rents was released last week, so let's take an updated look.

After stopping for a year, in the second quarter median asking rents zoomed up over 5% from $864 to $910.  Meanwhile, surprisingly weekly wages declined from $865 to $859.. The combined effect is that rent has become more unaffordable than ever.

The big jump in median asking rents in the second quarter can be easily seen in the below graph: 

Here is an updated look at real. inflation adjusted median asking rents, showing that after abating a bit for a year after Q1 2016, rent pressures on household budgets spiked in the second quarter:

Year	Median Asking Rent	Usual weekly earnings	Rent as % of earnings
1988	330	382	86
1992	401	437	92
1993	422	450	88
2000	478	568	84
2002	545	607	90
2004	599	629	95
2009	680	739	92
2012	717	768	93
2013	734	778	94
2014	762	791	96
2015	813	809	100
2016  H1	859	826	104
2016 H2	853	839	102
2018 Q1	864	865	100
2018 Q2	910	859	106

The big increase in unaffordability is a nasty surprise, eespecially since the vacancy rate appears to have bottomed over a year ago, so while apartment availability is still relatively tight,  the level of stress has decreased a little: 

It is worthwhile to note that the CPI for owner's equivalent rent, the major component of inflation, remains near the highest levels in a decade, although it has backed off a little this year: 

 There are two other median measures in addition to median asking rent from the HVS:   the American Community Survey and the Consumer Expenditure Survey.  Unfortunately both are only current through 2015.  The below table shows their YoY increases, compared with median asking rent:

2015  +0.9% (928)    +4.3%* +6.7% (813)

Finally , HUD recently premiered a Rental Affordability Index,, using the ACS data. Similar to my chart above, it compares median renter income with median asking rent. Please note, however, that this has only been updated through Q1 of this year: 

That gives us the "renatl affordability index" shown below:
.