Gainesville, Virginia. Homefacts City Report. Gainesville is located in Prince William County, VA. The population is 11,225. There are 5 public schools in Gainesville with an average Homefacts rating of A. The total crime rate for Gainesville is very low, and there are 21 registered sex offenders residing in the city.
On average, northern cardinals live for 3 years in the wild although several individuals have had life spans of 13 to 15 years. The longevity record for a captive northern cardinal is 28 Â½ years!
Cardinals are omnivorous. Their diet is up to 90 percent fruits,  grains, and weed seeds. They also eat berries, beetles, snails,  oats, corn, sunflower seeds, grasshoppers,â¦ and cicadas. They will  also suck sap out of maple trees.