median age was 40.4 years. For every 100 females, there were 93.8 males. For every 100 females age 18 and over, there were 93.9 males. The median income for a household in the city was $40,778, and the median income for a family was $59,266. Males had a median income of $35,352 versus $20.479 for females. The per capita income for the city was $25,818. About 21.5% of the population was below the poverty line, including 40.0% of those under age 18 and 4.6% of those age 65 or over. Streator is a principal city of the Ottawa Micropolitan Statistical Area, which was the tenth-most populous Micropolitan Statistical Area in the United States as of 2009. The small Livingston County portion of Streator is part of the Pontiac Micropolitan Statistical Area. Historically, the population of LaSalle County has increased 75% between 1870 and 1990, while the statewide population has grown 350%. Economy Streator's economic history has been tied with its natural resources. Coal was the initial catalyst of the city's economy from 1866 until the late 1920s. As the community matured, silica deposits provided the resource for Streator's next industry leader: glass-container manufacturing. While the coal industry eventually died, glass manufacturing remains a presence in Streator. Agriculture and related agri-business in the farmlands of LaSalle County and nearby Livingston County are also a strong influence in Streator's economic engine. Though manufacturing provides the greatest share of earnings, the service industry now accounts for the largest share of jobs. Coal Coal production in LaSalle County and Illinois peaked in the 1910s. Wyoming's Powder River Basin coal reserves, which contain a much lower sulphur content, were discovered in 1889, with full scale mining beginning in the 1920s. Glass manufacturing Glassmaking and, more specifically, glass blowing was a highly skilled craft. Most of America's glassblowers came from Europe, or were trained there. Many of Streator's immigrant coal miners were trained in glass blowing. High-grade silica, the main ingredient in glass was in abundance in the Streator region and nearby Ottawa. The combination of silica, coal to fire the furnaces and skilled craftsmen were a perfect match for Streator's second major industry which began in 1887 with the Streator Bottle and Glass Company. Other companies like Thatcher Glass Manufacturing Corp (later Anchor Glass Containers) which began manufacturing milk bottles in 1909, the American Bottle Company in 1905, the Streator Cathedral Glass Company in 1890,