As Hub housing prices skyrocket, poverty tightens its grip on hundreds of Boston families who are pushed out and further down the economic ?ladder, advocates say.

“There is not enough affordable housing,” said Liza Hirsch of Massachusetts Advocates for Children.

“Rents are so high in Boston right now even middle class families are struggling to afford rent. The private market is unaffordable and there is not enough supply of affordable housing. Families are just trying to survive.”

Between 2010 and 2016, single-family rental home prices have steadily climbed in Boston, jumping from $1,500 in November 2010 to over $2,500 in June 2016, according to data provided by Action for Boston Community Development.

“Boston now has a huge run-up of $30 million condos,” said John Drew, ?president of ABCD.

“It’s the whole business of inequality and racism. People don’t have the skills to compete. There is huge gentrification in Boston and prices are skyrocketing.”

Gov. Charlie Baker’s ?office says his administration is trying to stem the tide statewide. The Baker administration has created a five-year housing plan that includes millions of dollars in investment in supportive housing for homeless families, affordable housing preservation, mixed-income housing development and aid for local public housing authorities.

But Drew says Boston’s expensive market reflects a lack of national policy to address housing.

“Congress is sitting on its hands and doing nothing. It’s a national problem,” Drew continued. “We are allowing this implosion to take place.

“The end game is more and more families will be priced out and more youth will have no place to stay,” Drew said. “Are they going to sleep under bridges?”