The area a part-circle sprinkler irrigates, expressed in degrees of a circle. For example, a 90 degree arc provides quarter-circle coverage, while an 180 degree arc provides half-circle coverage.
The United States Census Bureau estimates the population of Hawaii was 1,431,603 on July 1, 2015; an increase of 5.24% since the 2010 United States Census. As of 2014, Hawaii had an estimated population of 1,431,603; an increase of 12,042 from the previous year and an increase of 71,302 (5.24%) since 2010. This includes a natural increase of 48,111 (96,028 births minus 47,917 deaths) and an increase due to net migration of 16,956 people into the state.
The United States is estimated to have a population of 326,326,020 as of November 25, 2017, making it the third most populous country in the world. It is very urbanized, with 81% residing in cities and suburbs as of 2014 (the worldwide urban rate is 54%).