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.
In general, the majority of Oahu's population consists of families, and the 900,000 inhabitants are divided into thousands of households. The growth of Oahu's population is more intense compared with the other islands of Hawaii. The number of people in Oahu alone propelled Hawaii to become recognized as one of the 20 largest states in the United States. Perhaps a result of the island's romantic atmosphere, almost half of the population of Oahu is married.