2.1 but above the country average of 1.38. As of the 2011 national census, education breakdown among 15-year-olds and older was as follows: 17,919 (15.8%) had a college degree, 35,709 (31.6%) had a high school diploma, 36,249 (32%) had a vocational school diploma, and 21,265 (20.6%) did not have a high school or vocational school diploma. Nationality, language and religion According to the 2011 census, 85.2% of Rybnik citizens declared Polish nationality, while 28.6% declared nationality other than Polish (since 2011, in the Polish census, one can declare up to two nationalities). Silesians were the largest national minority, at 28.6% (40,311 people), followed by Germans at 0.5% (707). Polish was the most-common language spoken at home, with 94.5% inhabitants declaring it. 24,372 people (17.3%) declared they speak Silesian at home. Since the 2011 census, Poland has experienced a significant influx of immigrants, particularly from the Ukraine. In Rybnik, the city hall estimates the Ukrainian immigrant population at around 10,000 as of 2021. Catholicism was the largest religious denomination in Rybnik according to the 2011 census, with 127,809 adherents (90.69% of all inhabitants). The only other denomination with more than 300 adherents were Jehovah's Witnesses, at 434 adherents (0.31%). 2,270 (1.61%) people declared they had no religion, while 6,785 (4.81%) refused to answer the question and for 2,790 (1.98%) people the question could not be answered. Other religions with places of worship in Rybnik include: Buddhists, Seventh Day Adventists, Lutherans (with a parish since 1742, and a church from 1853), and Pentecostals. Neighborhoods Rybnik is divided into 27 neighborhoods that are considered auxiliary administrative units. Most of them are suburban areas, including: Chwałęcice, Golejów, Gotartowice, Grabownia, Kamień, Kłokocin, Ligota-Ligocka Kuźnia, Meksyk, Ochojec, Orzepowice, Popielów, Radziejów, Rybnicka Kuźnia, Rybnik – Północ, Stodoły, Wielopole, Zamysłów and Zebrzydowice. There are also four former towns that have been merged with Rybnik: Boguszowice Stare, Chwałowice, Niedobczyce and Niewiadom. Two districts (Boguszowice Osiedle and Maroko-Nowiny) are typical Polish housing estates, with large blocks of flats and supporting buildings (such as shops and schools) built in communist time. The remaining three districts, Smolna, Śródmieście and Paruszowiec-Piaski formed the pre-war town of Rybnik. Those areas are densely built-up, with old town, city hall, most of schools, offices and shopping malls in Śródmieście (literally: city centre in Polish) and 19th century factories and houses in Paruszowiec. Government and politics Local politics Since the 1999 administrative reform, Rybnik is a consolidated