Sumy Oblast (), also known as Sumshchyna (), is an oblast (province) in northeast Ukraine. The oblast was created in its modern-day form, from the merging of raions from Kharkiv Oblast, Chernihiv Oblast, and Poltava Oblast in 1939 by the Presidium of the Supreme Soviet of the Soviet Union. The estimated population is

The administrative center of the oblast is the city of Sumy. Other important cities within the oblast include Konotop, Okhtyrka, Romny, and Shostka. The modern region combines territories of the historical Severia (northern part) and Sloboda Ukraine (southern part). On territory of the Sumy Oblast important centers of Ukrainian culture are located, such as the city of Hlukhiv which served as a hetman residence during the Cossack Hetmanate as well as the cities of Okhtyrka and Sumy which were regional centers of the Sloboda Ukraine.

The oblast has a heavy mix of agriculture and industry, with over 600 industrial locations. Among the most notable was the Soviet film stock manufacturer Svema in Shostka. Importantly, seven rivers pass through the oblast.

Geography The Sumy Oblast is situated in the northeastern part of Ukraine. In Ukraine it borders Chernihiv Oblast to its west, Poltava Oblast to the south, and Kharkiv Oblast to the southeast. Sumy Oblast also borders the Russian Federation, including Bryansk in the north, Kursk to the northeast, and Belgorod to the east. The length of the state border with the Russian Federation is . There are three railway border crossing (Volfine, Pushkarne, Zernove) and five highway border crossings (Bachivsk, Katerynivka, Ryzhivka, Yunakivka, Velyka Pysarivka). In regard to border crossings, since 2006 the city of Sumy has an airport which has an international checkpoint.

On its territory the Dnieper Lowland transitions east to the Central Russian Upland. The northern part of Sumy Oblast is part of the Polesie Lowland as its eastern region. The elevation of Sumy Oblast is between 110–240 m above sea level. Its area (23,800 km2) constitutes 3.95% of the country.

Seven main rivers flow through the oblast, with Desna River being the largest. All of them are transit because crossing the oblast flowing from the territory of the Russian Federation west towards Dnieper. All rivers in Sumy Oblast are part of the Dnieper River basin.

The Sumy Oblast contains 168 objects and territories of natural reserve. The oblast is rich in picturesque banks of numerous rivers, and sources of mineral waters. Major environmental problems are: soil erosion, pesticide pollution, air and water pollution. The city has a problem of garbage utilization.

History

The region was created on the ukase of Presidium of the Supreme Soviet of the Soviet Union on 10 January 1939 as part of the Ukrainian Soviet Socialist Republic. The newly created Sumy Oblast included 12 former raions of Kharkiv Oblast, 17 former raions of Chernihiv Oblast, and 2 former raions of Poltava Oblast.

During World War II in 1941–43, it was occupied by Nazi Germany under administration of the German Wehrmacht. After the German forces were driven out, the Soviet Union regained control of the region under jurisdiction of the Ukrainian Soviet Socialist Republic.

In 1965 one of former Chernihiv Oblast raions (Talalaivka Raion) was returned to Chernihiv Oblast.

During the 2022 Russian invasion of Ukraine the Sumy Oblast was one of the first regions where Russian and Ukrainian forces clashed. Parts of the oblast came under Russian occupation during the invasion. On 4 April 2022 Governor of Sumy Oblast Dmytro Zhyvytskyi stated that Russian troops no longer occupied any towns or villages in Sumy Oblast and had mostly withdrawn, while Ukrainian troops were working to push out the remaining units.Russian troops no longer hold any settlements in Ukraine's Sumy region, says governor, National Post (4 April 2022) On 8 April 2022 Zhyvytskyi stated that all Russian troops had left Sumy Oblast.Sumy region liberated from Russian troops, Ukrayinska Pravda (8 April 2022)

On 9 June 2024, amid Russian cross-border operations in neighboring Kharkiv Oblast, Russian forces claimed to have attacked and captured the border village of Ryzhivka, though this was denied by Ukrainian authorities.

Since the collapse of Ukraine's incursion into Kursk in early 2025, Russian forces have slowly reoccupied territories in northeastern Sumy Oblast. Several border settlements were captured, including Novenske, Basivka, and Veselivka. As of February 2026, combat continues in several settlements near the border, including Yunakivka and Kindrativka.

Demographics According to the 2001 Ukrainian census, ethnic Ukrainians accounted for 88.8% of the population of Sumy Oblast, and ethnic Russians for 9.4%. Етнічний склад населення України, 2001 рікБанк даних, перепис 2001 року

Language

Due to the Russification of Ukraine during the Soviet era, the share of Ukrainian speakers in the population of Sumy Oblast gradually decreased, while the share of Russian speakers increased. Native language of the population of Sumy Oblast according to the results of population censuses:Итоги Всесоюзной переписи населения 1959 года: Украинская ССР, стр. 168—193Численность и состав населения СССР: по данным Всесоюзной переписи населения 1979 года. Центральное статистическое управление СССР, 1984Чорний С. Національний склад населення України в ХХ сторіччі (2001)Итоги Всесоюзной переписи населения 1970 года. Том IV — М., Статистика, 1973 1959197019892001 Ukrainian82.0%80.7%78.1%83.3% Russian17.6%18.9%21.4%15.5% Other0.4%0.4%0.5%0.4%

Native language of the population of the raions, cities, and city councils of Sumy Oblast according to the 2001 Ukrainian census: UkrainianRussian Sumy Oblast 83.3%15.5% Sumy (city council) 77.4%20.2% Okhtyrka (city council) 87.1%10.0% Hlukhiv (city council) 83.3%16.4% Konotop (city council) 86.4%13.0% Lebedyn (city council) 93.3%6.5% Romny (city council) 94.0%5.7% City of Shostka 60.8%35.7% Okhtyrka Raion(in pre-2020 borders) 96.2%3.3% Bilopillia Raion 93.8%5.4% Buryn Raion 96.9%2.5% Velyka Pysarivka Raion 72.6%27.0% Hlukhiv Raion 78.1%21.7% Konotop Raion(in pre-2020 borders) 97.4%2.2% Krasnopillia Raion 93.0%6.5% Krolevets Raion 95.8%3.8% Lebedyn Raion 96.1%3.5% Lypova Dolyna Raion 97.7%1.9% Nedryhailiv Raion 97.7%1.9% Putyvl Raion 38.7%61.0% Romny Raion(in pre-2020 borders) 97.6%2.0% Seredyna-Buda Raion 20.8%79.1% Sumy Raion(in pre-2020 borders) 93.8%5.5% Trostianets Raion 86.1%13.3% Shostka Raion(in pre-2020 borders) 86.5%12.9% Yampil Raion 82.5%16.9%

Ukrainian is the only official language on the whole territory of Sumy Oblast.

According to a poll conducted by Rating from 16 November to 10 December 2018 as part of the project «Portraits of Regions», 60% of the residents of Sumy Oblast believed that the Ukrainian language should be the only state language on the entire territory of Ukraine. 22% believed that Ukrainian should be the only state language, while Russian should be the second official language in some regions of the country. 10% believed that Russian should become the second state language of the country. 8% found it difficult to answer.

On 26 April 2023, Sumy Oblast Military Administration approved the «Programme for the Development of the Ukrainian Language in All Spheres of Public Life in Sumy Oblast for 2023—2027», the main objective of which is to strengthen the positions of the Ukrainian language in various spheres of public life in the oblast.

According to the research of the Content Analysis Centre, conducted from 15 August to 15 September 2024, the topic of which was the ratio of Ukrainian and Russian languages in the Ukrainian segment of social media, 75.0% of posts from Sumy Oblast were written in Ukrainian (72.5% in 2023, 55.9% in 2022, 19.4% in 2020), while 25.0% were written in Russian (27.5% in 2023, 44.1% in 2022, 80.6% in 2020).

After Ukraine declared independence in 1991, Sumy Oblast, as well as Ukraine as a whole, experienced a gradual Ukrainization of the education system, which had been RussifiedBarbara A. Anderson and Brian D. Silver, "Equality, Efficiency, and Politics in Soviet Bilingual Education Policy, 1934-1980," American Political Science Review 78 (December 1984): 1019-1039. during the Soviet era. Dynamics of the ratio of the languages of instruction in general secondary education institutions in Sumy Oblast:«Статистичний щорічник України за 1998 рік» — К., 1999. — — Language of instruction, % of pupils 1991—1992 1992—1993 1993—1994 1994—1995 1995—1996 2000—2001 2005—2006 2007—2008 2010—2011 2012—2013 2015—2016 2018—2019 2021—2022 2022—2023 Ukrainian 48.5% 49.0% 55.8% 59.7% 63.0% 83.0% 93.0% 95.0% 96.0% 96.0% 96.0% 98.0% 99.88% 100.0% Russian 51.5% 51.0% 44.2% 40.3% 37.0% 17.0% 7.0% 5.0% 4.0% 4.0% 4.0% 2.0% 0.12% —

According to the State Statistics Service of Ukraine, in the 2023—2024 school year, all 91,513 pupils in general secondary education institutions in Sumy Oblast were studying in classes where Ukrainian was the language of instruction. —

Age structure 0-14 years: 12.7% (male 74,529/female 70,521) 15-64 years: 70.8% (male 386,250/female 422,077) 65 years and over: 16.5% (male 60,374/female 127,306) (2013 official)

Median age total: 42.0 years male: 38.6 years female: 45.4 years (2013 official)

Points of interest The following historic-cultural sited were nominated for the Seven Wonders of Ukraine. Monument to a Mammoth (Kulishivka) Kruhlyi dvir (Round court) Sofroniiv Monastery

Administrative divisions

It comprises 5 raions (districts) that are further subdivided into 51 territorial hromadas (communities).

The following data incorporates the number of each type of administrative divisions of the Sumy Oblast:

Administrative Center – 1 (Sumy); Raions – 5; Hromadas – 51.

The local administration of the oblast is controlled by the Sumy Oblast council. The governor of the oblast (chairman of state regional administration) is appointed by the President of Ukraine.

Districts +NameCoat of armsAdministrative centerPopulation (thousands) On the map Admin. structureKonotopskyKonotop204.2Admin. structureOkhtyrskyOkhtyrka125.6Admin. structureRomenskyRomny113.7Admin. structureSumskySumy449.4Admin. structureShostkinskyShostka188.5Admin. structure

Districts in cities No. District Entry 1 Zarichy city Sumy 2 Kovpakiv city Sumy

Liquidated districts More: Administrative divisions of Sumy Oblast

Economy

Industry

The main industrial activities of the oblast are: chemical mechanical engineering, pumping and energy mechanical engineering, agricultural machine-construction, instrument-making industry and radio electronics, technical equipment production for processing fields of agro-industrial complexes, mining and iron ore production industry, polygraph industry and medicine production, oil and gas processing, chemical production, film and photo material production (See: Svema), and chemical fertilizer production. In general, there are 273 large industry enterprises and 327 small industry enterprises.

Agriculture

In 1999, the gross grain yield was about 446,000 tons, sugar beets – 664,000 tons, sunflower seeds – 27,700 tons, potatoes – 343,600 tons. The region also produced 108,700 tons of meat, 517,800 tons of milk and 295,300,000 eggs. At the beginning of 1999, there were 781 registered farms in the oblast.

Notable people from Sumy Oblast Viktor Yushchenko – 3rd President of Ukraine (2005–2010); Khoruzhivka village Yevhen Adamtsevych – Ukrainian bandurist, the author of Zaporizhian March Ivan Bahrianyi – Ukrainian poet and a political leader in exile; Okhtyrka Oleksi Berest – one of the soldiers who hoisted the Victory Banner in Berlin and a posthumous Hero of Ukraine. Dmitry Bortniansky – Ukrainian composer; Hlukhiv Dmitry Chechulin – chief architect of Moscow; born in Shostka in 1901 Thomas de Hartmann – composer Volodymyr Holubnychy – race walker, Olympic gold medal; Sumy