The unique historical data of Population Censuses now available also in visual form


Historical data of Population and Housing Censuses on the time period from 1925 till the latest Census in 2011 on the Central Statistical Bureau (CSB) website now are available in transparent and easy-to-use form. So called “population tree” was developed with an aim to ensure that everybody is able to find the number of Latvia residents in each Census year in a fast and easy way.

„We have preserved a unique historical heritage from the Population and Housing Censuses organised during the independent Latvia and afterwards - in Soviet times. Because of their uniqueness, the historical data should be used widely and with ease. Therefore we decided to depict this valuable information in a form of so called "population tree" that is the best presentation of population number and dynamics thereof in breakdown by age group,” explains Director of Information, Publishing and Printing Department Uldis Ainārs.

In Latvia Population and Housing Censuses were conduced in 1920, 1925, 1930, 1935, 1959, 1970, 1979, 1989, 2000 and 2011. This visualisation includes information on all Population Censuses, except the first one in 1920, because the data acquired within it were not published in a separate data collection. Everybody can find out the population number in corresponding year, byselecting one necessary age group or all of them up to the age of 90. The data are depicted by separating genders – indicating number of males by green and female number – by red colour.

Section “Analysis” next to the “population tree” contains also short analysis of facts characterising population number in the corresponding year. Whereas section “Events” reveals an event that in the CSB opinion was significant at that time or still is, e.g., resident fleeing during the World War I or legendary Russian Federation ice hockey team capitulation to the Latvia players in the Men’s World Ice Hockey Championship 2000.

This visualisation method is called “population tree” because, when presenting the data in visual form, the population number dynamics in breakdown by age group looks like a Christmas tree. Guidelines on the use of "population tree" are available under the data visualisation tool.

Similar visualisation of the latest Population and Housing Census - the one conducted in 2011 – is available on the CSB website. Section Statistics of the 1920s-1930s in the CSB database contains historical statistics on economy, industry and trade, transport and communications, agriculture, population and social processes.

CSB is working also on digitalisation of the whole information acquired within the framework of the Population and Housing Censuses. Currently section e-publications of the CSB website includes digitalised results of 2nd and 3rd Latvian Population Census of 1925 and 1930 as well as data from the Latvian SSR Population and Housing Census 1989.

Currently visualisation has been developed only in Latvian, (access it by -> Statistikas tēma „Tautas skaitīšana” -> Datu vizualizācija), while English version will be available at the end of summer.


Sanda Rieksta
CSB Public Relations Manager
67366621; 27880666
sanda [dot] rieksta [at] csb [dot] gov [dot] lv 
Twitter: @CSP_Latvija