Arizona home prices rose 16.6 percent in July, the biggest year-to-year gain in the nation, a real estate analytics and tracking company reported Tuesday.

CoreLogic also reported a 3.8 percent increase in home prices nationally.

The report was made on CoreLogic's website in a press release.

“The housing market continues its positive trajectory with significant price gains in July and our expectation of a further increase in August,” CoreLogic chief economist Mark Fleming said in the press release. “While the pace of growth is moderating as we transition to the off-season for home buying, we expect a positive gain in price levels for the full year.”

CoreLogic, based in Santa Ana, Calif., gathers its data by tracking the changing prices of the same homes over time in a majority of the country's ZIP codes.