NEW YORK, NY — Sausage costs twice as much in Manhattan as in Little Rock Conway, Arkansas. And toothpaste goes for three times as much as in Harlingen, Texas. That's because the borough is home to the nation's most expensive groceries, according to an analysis by the website CouponFollow.

The online coupon index used cost of living data from the Council for Community and Economic Research to list the highest, lowest and median prices for the 30 most-purchased grocery items across the United States. Manhattan ranked No. 1, with prices 140 percent above the nationwide median. Brooklynites pay 130 percent more than the median, enough to earn the borough a No. 3 ranking just below Seattle.

New Yorkers pay the highest prices for eight top grocery items, including margarine, lettuce and frozen meals. The most expensive, ground beef, goes for $5.38 in Manhattan — more than twice the nation's lowest price of $2.58 in Wichita Falls, Texas. Oakland and San Francisco, California round out the five most expensive cities. But the nation's most expensive gallon of milk can be found in Manchester, New Hampshire, at a cost of $3.56.