is a city in Hyà Âgo Prefecture, Japan. , the city had an estimated population of 39,628 in 17199 households and a population density of 250 persons per kmò. The total area of the city is .
Katà  is located slightly south of central Hyogo Prefecture in the Harima region of the prefecture. The Kakogawa River and many of its tributaries flow through the city. Part of the city is within the borders of the Kiyomizu-Tà Âjà Âko-Tachikui Prefectural Natural Park.
Kasai has a Humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. There is a relatively warm climate throughout the four seasons. There are few disasters caused by typhoons and snowfall, and the average annual temperature is slightly lower than the coastal area of the Seto Inland Sea, but the amount of precipitation is slightly higher.
Per Japanese census data, the population of Katà  has remained relatively steady over the past 40 years.
The area of the modern city of Katà  was within ancient Harima Province. During the Edo Period, the region was divided into a mosaic of small holdings by various feudal domains, with large portions held by Ono and Himeji Domains, Hamamatsu Domain and Tanakura Domain. The jin'ya of the minor Mikusa Domain was located in Katà Â. Following the Meiji restoration, the villages of Takino and Yashiro were created within Katà  District with the establishment of the modern municipalities system on April 1, 1889. Yashiro was elevated to town status on June 1, 1912 followed by Takino on April 1, 1925. The city of Katà Â, which now occupies the northern two-thirds of former Katà  District was established on March 20, 2006 from the merger of Takino and Yashiro with the town of Tà Âjà Â.
Katà  has a mayor-council form of government with a directly elected mayor and a unicameral city council of 18 members. Katà  contributes one member to the Hyogo Prefectural Assembly. In terms of national politics, the city is part of Hyà Âgo 4th district of the lower house of the Diet of Japan.
Katà  is a regional commercial center, with a mixed local economy of agriculture and light manufacturing.
Katà  has seven public elementary schools, two public middle schools and one public combined elementary/middle school operated by the city government and one public high school operated by the Hyà Âgo Prefectural Department of Education. The prefecture also operates one special education school for the handicapped. The Hyogo University of Teacher Education is located in Katà  and also operates its own high school.
Katà  is twinned with: