Quick Answer. The average human running speed is 12 to 15 miles per hour for short-distance sprinting and 5 to 8 mph for long-distance running. Running times vary based on training and overall fitness levels.
Attachment D - Demographic Information on Older Individuals. Population Served. According to the U.S. Census Bureau, in 2010 there were 3.8 million people in Texas age 60 and older; they made up approximately 15 percent of the total Texas population of 25 million.
In October 1990, the Census Bureau issued estimated U.S. population figures of approximately 254 million, based on a tracking of birth, death, and immigration records.