For mortgages acquired by Fannie Mae and Freddie Mac, the conforming loan limit for a single-family home will remain at $417,000 next year for the majority of the country. In 46 counties, however, jumbo loan limits will rise, reflecting that these areas have seen home values rise by some of the largest amounts in the past year, says the Federal Housing Financing Agency.

The loan limits are calculated each year under the Housing and Economic Recovery Act of 2008, which sets a maximum loan limit based on median home values.

The Boston metro area, including the counties of Essex, Middlesex, Norfolk, Plymouth, Rockingham, Strafford, and Suffolk, will have the largest increase in the nation — by $47,150 — next year. Conforming loan limits in those counties will jump from $470,350 to $517,500.

Other metro areas that will see the largest increases in conforming loan limits in 2015 include:

  • Boulder County, Colo.: Conforming loan limits will rise by $39,500, going from $417,000 to $456,550.
  • Napa County, Calif.: Conforming loan limits will rise by $23,000, going from $592,250 to $615,250.
  • Baltimore (including the counties of Anne Arundel, Baltimore, and Carroll): Conforming loan limits will rise by $23,000, going from $494,500 to $517,500.

Additional metro areas that will see an increase to loan limits next year include Nashville, Tenn.; Seattle; San Diego; and Ventura, Calif.

Source: Federal Housing Finance Agency