This thesis comprises research on social and economic circumstances in Križevci during the World War I based on authentic archive sources. Since the 12th century Križevci was an important administrative, cultural and economic centre which connected the area between Drava in the north and Sava in the south. The first major political blow hit Križevci in 1886,when it lost the status of the county centre. When it recovered from that blow and started the way of modernisation, World War I started. Due to war outbreak Križevci suffered new blows, primarily in social and economic sphere. The thesis analyses decline of the number of inhabitants which was attributed to consequences of World War I. After the census in 1910 the town had 4897 inhabitants, and after the census in 1921 it had 4698 inhabitants. It can not be stated with certainty how many inhabitants of Križevci were killed in World War I. Along with those losses, migration and the Spanish flu which hit Križevci in 1918 and 1919, in the period between the two censuses the town observed depopulation of 199 inhabitants. Should we ad the the lack of average increase of population in Križevci of the average 414 inhabitants in the census periods from 1857 – 1919, we get the number of 613 inhabitants less than expected for the period from 1910 to 1921. The thesis also thoroughly presents position of Križevci during World War I. Križevci was located in the Hungarian part of the Austrian-Hungarian Monarchy and were a part of Bjelovar-Križevci county and enjoyed the town status. The town was governed by the town council presided by the mayor Stjepan Pomper. Town council attempted to reduce social problems caused by the war by means of numerous hospital and orphanage subsidies, increase of war supplements and organisation of town aprovisation. The author concludes that the biggest problem regarding the town government was related to the overburdened town budget and lack of autonomy for bringing major political decisions. All major decisions of the town council had to be verified by the County council presided by the great county prefect. Due to such structure of the decision making process, especially in the two last war years, the town suffered frequent political crises that led to mayor's resignation at the end of 1917. It was not before the end of the war that the new mayor was elected, and during that period the town was run by the town captain who was elected by the great county prefect. Before the war started the town had a rich cultural and social life which was greatly disturbed by the war outbreak and proclamation of state of emergency. Regardless of their material, national or religious status, people of Križevci were to a great extent included in numerous humanitarian and collection actions with the objective to make the consequences of war easier for the most vulnerable groups of society (families of killed or injured soldiers, children, orphans, soldiers etc.). The thesis specifically emphasises the role of the Križevci branch of Red cross where injured soldiers were treated, as well as the action of helping the children from Istria and Primorje that were endangered by famine. In the subsequent part of the thesis the author researches the problems that occurred within the scope of work of the General public school in Križevci and the Royal Agriculture and Forestry College in Križevci. Numerous problems of educational institutions were: lack of finances, irregular attendance of students/participants, assigning one part of facilities to the army and the Red cross hospital, mobilisation of teachers and professors, but also partly of students of the Royal Agriculture and Forestry College. The main and perhaps the biggest consequence of World War I is the fact that economically and politically weakened town of Križevci was not able to retain the Royal Agriculture and Forestry College and it was moved to Zagreb in 1919 and merged with the faculty of Agronomy. The chapter entitled „Economic circumstances during World War I“ provides a detailed analysis of economy in Križevci. The authorgives an extensive outline of prices for agricultural and livestock products, together with prices and taxes related to town fair and products and services of the companies supervised by the town council. Besides the town companies, the author also analyses the work of other trade, craft, production and financial companies with business activity in Križevci during the war. In this thesis the author concludes that these companies earned and saved a part of the capital in Križevci savings institutions, but the war and uncertainty led to lack of investment in larger production facilities, so the town did not manage to achieve a significant level of industrialisation. In the last chapter the author researched to which troops of the Austrian-Hungarian army were the soldiers from Križevci most frequently recruited and on which battlefields they fought. Furthermore, the last part provides and overview of the people from Križevci who were, according to the available sources, killed in the war. The end of the thesis provides analysis of the situation at the end of the war and the activity of the green cadres in the town surroundings. Based on obtained results the author concludes that World War I as a global phenomenon to a large extent influenced social and economic circumstances in Križevci as a small local society with no immediate war activity.