Population (1991): 15.6 millions, out of which Czechs 54.1%, Slovaks 31%, Moravians 8.7%, Hungarians 3.8%, Gypsies 0.7% (de-facto more – they are among the other nations, esp. the Hungarians), Silesians 0.3%, Ruthenes, Ukrainians, Germans, Poles. The Moravians are the Slavic inhabitants of modern Moravia, the easternmost part of the Czech Republic. ... The Rroma people (pronounced rahma, singular Rrom) along with the closely related Sinti people are commonly known as Gypsies. ... Please be advised that the factual accuracy of Wikipedia articles dealing with topics related to the Oder-Neisse Line is often disputed. ... Ruthenians is a name that has been applied to different ethnic groups at different times; for an explanation of the reasons for this, see Ruthenia. ...

Population growth rate 2.7% in 1985, 1.7% in 1990, decreasing tendency – more decreasing in the Czech Republic than in Slovakia. In 1989 life expectancy was 67.7 years for men and 75.3 years for women. About 23.1 percent of the population was under the age of 15, and 19 percent was over the age of 60. 1989 is a common year starting on Sunday of the Gregorian calendar. ... Life expectancy is the most likely number of years remaining for a living being (or the average for a class of living beings) of a given age to live. ...

Population density (1986): approximately 121 persons per square kilometer. The most densely settled geographic region was Moravia, which had about 154 persons per square kilometer. The figure for Bohemia was about 120, and for Slovakia about 106. The major cities and their estimated populations in January 1986 were as follows: Prague (CZ) 1.2 million; Bratislava (SK) 417,103, Brno (CZ) 385,684, Ostrava (CZ) 327,791, Kosice (SK) 222,175; and Plzen (CZ) 175,244. Czechoslovakia remained essentially a society of small cities and towns, in which about 65 percent of the population were classified as urban dwellers. Moravia (Czech: Morava, German: Mähren, Polish: Morawy, Hungarian: Morvaország) is the eastern part of the Czech Republic. ... Prague (Praha in Czech) is the capital and largest city of the Czech Republic. ... Bratislava is the capital of Slovakia and the countrys largest city, with a population of some 430,000. ... Brno  listen? (German: Brünn) is the second-largest city of the Czech Republic, located in the southeast of the country, at the confluence of the Svitava and Svratka rivers. ... Ostrava  listen (German: Ostrau, Polish: Ostrawa) is the third largest city in the Czech Republic and the administrative center of the Moravian-Silesian Region. ... Košice (German: Kaschau, Hungarian: Kassa) is Slovakias second largest city. ... The title given to this article is incorrect due to technical limitations. ...

Czechoslovakia's ethnic composition in 1987 offered a stark contrast to that of the First Republic (see History). The German population that made up the majority of the population in boder regions was forcebly expelled after World War II, and Carpatho-Ukraine (poor and overwhelmingly Ukrainian and Hungarian) had been ceded to the Soviet Union following World War II. Czechs and Slovaks, about two-thirds of the First Republic's populace in 1930, represented about 94 percent of the population by 1950. The aspirations of ethnic minorities had been the pivot on which the First Republic's politics turned. This was no longer the case in the 1980s. Nevertheless, ethnicity continued to be a pervasive issue and an integral part of Czechoslovak life. Although the country's ethnic composition had been simplified, the division between Czechs and Slovaks remained; each group had a distinct history and divergent aspirations. From 1950 through 1983, the Slovak share of the total population increased steadily. The Czech population as a portion of the total declined by about 4 percent, while the Slovak population increased by slightly more than that. The actual numbers were hardly such as to imperil a Czech majority; in 1983 there were still more than two Czechs for every Slovak. In the mid-1980s, the respective fertility rates were fairly close, but the Slovak fertility rate was declining more slowly.

For details on ethnic groups see also:

• Czechoslovakia: 1918 - 1938
• Czechoslovakia: 1969 - 1987