As of 2010, the district has an estimated population of 100,526 and a density of 78.5 persons per km2. The total area was 1281.05 km2. In terms of national politics, the district is represented in the Diet of Japan's House of Representatives as a part of the Aomori 1st district and the Aomori 2nd district.
Towns and villages
Kamikita District was part of ancient Kita County (北郡, Kita-gun), established by the Northern Fujiwara. During the Edo period, the area was part of the Morioka han feudal domain of the Nanbu clan, with daikansho located in Noheji and Shichinohe.
The Nanbu clan sided with the Ōuetsu Reppan Dōmei during the Boshin War of the Meiji Restoration and were punished by the new Meiji government by loss of their northern territories. In November 1869, Kita-gun and neighboring Sannohe District became part of the newly created Tonami Domain (斗南藩, Tonami-han), a 30,000 koku holding created to resettle the dispossessed Matsudaira clan from Aizu-Wakamatsu. In July 1871, with the abolition of the han system, Tonami Domain became Tonami Prefecture, and was merged into the newly created Aomori Prefecture in September 1871.
During the early Meiji period administrative reorganization of Japan on July 22, 1878, Kamikita and Shimokita were divided from former Kita County, and Kamikita was divided into 50 villages. In the cadastral reform of April 1, 1889, the number of villages was reduced through consolidations and mergers to sixteen.
- On September 27, 1897 the village of Noheji was elevated to town status.
- On September 1, 1902 the village of Shichinohe was elevated to town status.
- On September 1, 1910 the village of Sanbongi was elevated to town status.
- On April 20, 1929 the village of Momoishi was elevated to town status.
- On February 1, 1948 several villages or portions of villages were merged to create the town of Omisawa.
- On February 1, 1956 the town of Sanbongi was elevated to city status.
- On April 1, 1956 the village of Towada was elevated to town status.
- On October 1, 1957 the village of Rokunohe was elevated to town status.
- On April 1, 1958 the village of Yokohama was elevated to town status.
- On September 1, 1958 the town of Omisawa was elevated to city status and became the city of Misawa.
- On September 1, 1958 the village of Uranodate was elevated to town status and became the town of Kamikita.
- On August 1, 1969 the village of Shimoda was elevated to town status.
- On April 1, 1975 the town of Towada was renamed as the town of Towadako.
- On January 1, 2005 the town of Towadako was merged into the city of Tiowada.
- On March 1, 2005 the towns of Shimoda and Momishi were merged to create the town of Oirase.
|pre-1889||April 1, 1889||1889–1949||1950–1989||1989–present||present|
|Yokohama village||Yokohama village||Yokohama village||April 1, 1958
|Yokohama Town||Yokohama Town||Yokohama|
|Noheji Village||September 27, 1897
|Noheji Town||Noheji Town||Noheji Town||Noheji Town||Noheji|
|Uranodate Village||Uranodate Village||Uranodate Village||September 1, 1958
renamed Kamikita Town
|Kamikita Town||March 31, 2005
|Kachiji Village||Kachiji Village||Kachiji Village||November 1, 1963 renamed
|Shichinohe Village||September 1, 1902
|Shichinohe Town||Shichinohe Town||Shichinohe Town||March 31, 2005
|Tenmabayashi Village||Tenmabayashi Village||Tenmabayashi Village||Tenmabayashi Village||Tenmabayashi Village|
|Sanbongi Village||September 1, 1910
|Sanbongi Town||February 1, 1955
October 10, 1956
|Towada City||January 1, 2005
|Ofukanai Village||Ofukanai Village||Ofukanai Village|
|Fujisaka Village||Fujisaka Village||Fujisaka Village|
|Yotsuwa Village||Yotsuwa Village||Yotsuwa Village||March 1, 1956|
merged with Misawa City
|Hookusawa Village||September 7, 1931 merged
|Towada Village||April 1, 1956
|April 1, 1976|
renamed Towadako Town
|Rokkasho Village||Rokkasho Village||Rokkasho Village||Rokkasho Village||Rokkasho Village||Rokkasho Village||Rokkasho|
|Misawa Village||Misawa Village||February 1, 1948
part of Rokunohe, Shimoda
Uranodate merged| September 1, 1958 renamed
|Misawa City||Misawa City||Misawa|
|Momoishi Village||April 20, 1929
|Momoishi Town||Momoishi Town||Momoishi Town||March 1, 2005
|Shimoda Village||Shimoda Village||Shimoda Village||Shimoda Village||August 1, 1969|
|Rokunohe Village||Rokunohe Village||Rokunohe Village||October 1, 1957
|Rokunohe Town||Rokunohe Town||Rokunohe|
- "青森県の衆議院小選挙区の区割りについて(平成29年以降)" [About the division of Aomori Prefecture's House of Representatives single-member constituency (2017-)] (in Japanese). Retrieved 7 May 2020.