is a town located in Ibaraki Prefecture, Japan. , the town had an estimated population of 31,596 in 12,052 households and a population density of . The percentage of the population aged over 65 was 34.9%. The total area of the town is .
Located in central Ibaraki Prefecture, south of prefectural capital of Mito, Ibaraki is located in the flatlands near the Pacific Ocean, and almost encompasses Lake Hinuma, the 30th largest body of freshwater in Japan.
Ibaraki has a humid continental climate (Köppen Cfa) characterized by warm summers and cold winters with light snowfall. The average annual temperature in Ibaraki is 13.9 ðC. The average annual rainfall is 1367 mm with September as the wettest month. The temperatures are highest on average in August, at around 25.7 ðC, and lowest in January, at around 3.1 ðC.
Per Japanese census data, the population of Ibaraki has remained relatively steadily for the past 40 years.
The villages of Nagaoka, Kawane, Kaminoai and Ishizaki were created within Higashiibaraki District and the village of Numasaki was created within Kashima District with the establishment of the modern municipalities system on April 1, 1889. Nagaoka was elevated to town status on February 11, 1955, and merged with Kawane and Kaminoai to form the town of Ibaraki the same day. Ibaraki annexed neighboring Ishizaki on March 5, 1958. The town was set to merge with Mito, on December 8, 2007, but following the election of a new mayor in April 2007, these plans were abandoned.
Ibaraki has a mayor-council form of government with a directly elected mayor and a unicameral town council of 16 members. Ibaraki, together with neighboring Hokota and à Âarai, contributes two members to the Ibaraki Prefectural Assembly. In terms of national politics, the town is part of Ibaraki 2nd district of the lower house of the Diet of Japan.
The economy of Ibaraki is primarily agricultural.