 The per capita income for the city was $23,988.About 4.8% of families and 6.1% of the population were below the poverty line, including 7.7% of those under age 18 and 16.6% of those age 65 or over.By the mid-2010s, Cibolo was one of the fastest growing small cities in the United States, experiencing a nearly 900% increase in population since 2000 and growing from 3,000 to the current estimate of about 30,000 residents.