1900-1930 Census--The Family History Library has the U.S. federal censuses of Hawaii for 1900, 1910, 1920, and 1930.
United States Censuses 1900 and 1920—Free Internet census indexes and images to the 1900, and 1920 (partial index only) can be viewed on the FamilySearch Record Search. These indexes show every name listed on the census, and except for 1920, are also linked to census images including information about each person’s residence, age, birthplace, occupation, other family members, and neighbors.
1900--The Territory of Hawaii was established.
1959--Hawaii attained statehood.
Soundex--Soundex or phonetic indexes are available for the 1900, 1920, and 1930 censuses. The 1910 Federal Census has been published (Family History Library book 996.9 X22h 1910).
Ancestry--All census records for Hawaii have been indexed at Ancestry.
Colonial censuses exist for some portions of Hawaii for 1866, 1878, 1890, and 1896. The 1878 census is for Hilo only, and the 1896 is for the island of Oahu only. The 1890 and 1896 censuses are the most complete. They give the name, age, sex, and birthplace of every person. The 1878, 1890, and 1896 censuses are available at the Hawaii State Archives and the Family History Library (Family History Library films 1010681-88).
The Hawaii State Archives also has two "census files," 1840 to 1866 and 1847 to 1866, which contain miscellaneous records such as school census, population lists, and vital record summaries (Family History Library film 1009896 item 1-2 has records for 1840-1866).
State and Territorial Censuses
The federal census records 1900-1930 for Hawaii are territorial censuses, since Hawaii was not a state until 1959. For state census records, refer to Colonial census records under Special Censuses.
FamilySearch Record Search has free census indexes and images for 1900; but indexes only for 1920.
Heritage Quest Online: http://www.heritagequestonline.com
Census Online: http://www.census-online.com/links/HI/
Genealogy Today: http://dir.genealogytoday.com/usa/hi/census.html
Access Genealogy: http://www.accessgenealogy.com/census/hawaii.htm
Hawaii Research Outline. Salt Lake City, Utah: Intellectual Reserve, Inc. Family History Department, 1998, 2001.