In Florida , Lake Mary , population 13,922 , signed up for $ 5,000 a month in 2002 , joining the two nearby county governments , the local airport , the wastewater authority and the nearby towns of Sanford -LRB- population 49,252 -RRB- and Oviedo -LRB- population 30,800 -RRB- on Alcalde & Fay 's client list .