Massachusetts (USA) is 4.4 times larger than Harris County, Texas.
Massachusetts, officially the Commonwealth of Massachusetts, is a state in the New England region of the northeastern United States. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. Wikipedia
Area: 4,589 km2 calculated
Harris County is a county in the U.S. state of Texas. As of the 2010 census, the population was 4,092,459, making it the most populous county in Texas and the third-most populous in the United States. Wikipedia