Most of the inhabitants of Mladenovac are working in the industrial factories. The most prominent large companies are: Keramika, Progres, Minel trafo, Elektrošumadija, Cobest and Makovica. There is a game hunting ground "Varovnica" in the municipality. Other touristic attractions in the municipality include the nearby
Kosmaj mountain with its monasteries, monuments and excursion complexes, Selters Spa, lakes of Markovac and Rabrovac, and the ethno-village of Amerić. The following table gives a preview of total number of registered people employed in legal entities per their core activity (as of 2022):
Selters Spa The Selters Institute for Rehabilitation is located southeast from Belgrade, in the urban area of Mladenovac. The first water well with warm salty water was dug in 1893. After the water from the thermo-mineral spring was analyzed, it showed similarities with the waters from spas
Bad Ems in
Germany,
Royat in
France and
Luhačovice in
Bohemia, but it was most comparable to the
Selters Spa in Germany, so it was named the same way. Water was awarded with medals in Brussels (1906) and London (1907). The health resort was initially developed by Dr. Naum Atanasijević, who sold his inheritance, a
steam mill, and invested the money into the villa with 30 beds. Thermal water comes from two springs. The spa continued to develop during
Interbellum, when number of visitors exceeded Mladenovac's population. The modern complex was reconstructed and expanded in 1975, when state Institute for Occupational Medicine and Rehabilitation purchased the center. Rehabilitation center "Sokobanjska" was opened in 1989 in Belgrade itself, and later administratively became part of Selters. The water is beneficial for the patients with strokes, rheumatism, orthopedic problems and cerebral palsy. The institute also provides the mud healing therapies though it has no natural healing mud. It is made from the mixture of thermal water, clay and
zeolite, which matures in special pools and then is kept at . As of 2017, the complex has a floor area of with 300 beds, wellness and spa centers, a park of and 7,000 patients yearly. 4,468 in 1991, 5,094 in 2002 and 4,601 in 2011. ==Education==