*'''1865:''' The 1865 census for '''Helleland''' is available on microfilm at the [https://www.familysearch.org/search/catalog/256736 Family History Library] in Salt Lake City. It contains the persons name, residence, status in the family, occupation, sex, martial status, place of birth, religion if not a member of the state church, and other miscellaneous information. Each book usually contains one clerical district (prestegjeld). In some books there are two clerical districts recorded. The parishes and school districts in each clerical district are listed at the beginning of each book. Also available in a searchable database online at [https://www.digitalarkivet.no/en/census/search/1865/38200 Digitalarkivet] (Digital Archives).
*'''1910:''' The 1910 census for '''Helleland''' is available in a searchable database online at [https://www.digitalarkivet.no/en/census/search/1910/36624 Digitalarkivet] (Digital Archives).