Fire Station 12 was built in 1988. This area was in the growing stages and had not yet developed the population density it has today. The emergency call volume of station 12 has increased steadily throughout the years and is currently the second busiest fire station in the county. It has a very large and diverse response area that is residential, commercial and industrial. The response zone includes the St. Lucie Medical Center, Port St. Lucie City Center, two St. Lucie County Schools, professional medical buildings, nursing home facilities, six retirement communities, a mix of commercial buildings, 2,500 acres of the Savannas State Preserve, approximately 5 miles of Florida East Coast (FEC), Indian River Drive, as well as densely populated single-family residential areas. The station also covers a large section of North and South US Hwy 1.