 About 1.1% of families and 1.7% of the population were below the poverty line, including none of those under age 18 and 5.4% of those age 65 or over.Jefferson Borough is served by the Jefferson Volunteer Fire Company (Station 47) as well as the surrounding mutual aid departments, including Spring Grove Fire Department, North Codorus Fire Department, Seven Valleys Fire Department, Porters Community Fire Company, and Lineboro Fire Department (MD).Jefferson is primarily covered by Spring Grove Ambulance service, which occasionally has Advanced Life Support (ALS) capabilities for EMS needs.