By Lisa Beilfuss 

Standard & Poor's Ratings Services on Friday raised its outlook on the Netherlands to positive from stable, citing a broadening economic recovery.

S&P affirmed the country's double-A-plus rating, which is one step below triple-A.

The credit ratings firm said the positive outlook reflects a one-in-three probability that it could raise its ratings on the Netherlands within the next 24 months if economic growth prospects improve further.

S&P said it expects the Dutch economy to expand by about 1.7% annually through 2017, up from 0.9% growth last year and more than the firm predicted six months ago. The European Commission has projected 1.6% growth this year and 1.7% growth next year.

The firming of the eurozone's growth prospects will continue to support demand for Dutch goods and services, S&P said, adding that demand from trading partners outside the eurozone should be supported by euro depreciation.

S&P expects domestic demand to recover as a result of increases in real disposable income--driven by the decline in oil that has led to an improving job market and lower inflation. Capital spending, supported by accommodative central-bank policy, will rise and a recovering housing market will help lift consumption, the firm said.

At the end of 2013, S&P stripped the Netherlands of its triple-A rating, as consumer spending slid, in part a result of a weak housing market, and dragged down economic growth.

Write to Lisa Beilfuss at l isa.beilfuss@wsj.com