The California Association of Realtors said San Bernardino County saw the largest increase in the region — six percent — followed by Orange and Los Angeles counties.
The City Council's Planning and Land Use Management Committee voted unanimously to support a fee on developers to help pay for affordable housing.
The push is on in L.A. to find help with rent for tens of thousands of homeless people the county has pledged to house over the next few years.
In their final weeks of work this year, Gov. Jerry Brown and legislators have promised to tackle the state's affordable housing crisis
A higher percentage of renters in L.A. are planning on settling down elsewhere compared to the national average, according to Apartment List, a rental listing site.