Negoro Temple in Iwade
Negoro Temple in Iwade
Flag of Iwade
Official seal of Iwade
Location of Iwade in Wakayama Prefecture
Location of Iwade in Wakayama Prefecture
Iwade is located in Japan
Location in Japan
Coordinates: 34°15′N 135°19′E / 34.250°N 135.317°E / 34.250; 135.317Coordinates: 34°15′N 135°19′E / 34.250°N 135.317°E / 34.250; 135.317
 • MayorMasayuki Nakashiba (since October 1996)
 • Total38.51 km2 (14.87 sq mi)
 (February 2021)
 • Total53,280
 • Density1,400/km2 (3,600/sq mi)
Time zoneUTC+09:00 (JST)
City hall address209 Nishino, Iwade-shi, Wakayama-ken 649-6292
WebsiteOfficial website
BirdCettia diphone
FlowerCherry blossom
TreeQuecus phillyraeoides (Ubamekashi in Japanese)
Iwade city hall
Iwade city hall

Iwade (岩出市, Iwade-shi) is a city located in Wakayama Prefecture, Japan. As of 1 November 2021, the city had an estimated population of 54,138 in 23906 households and a population density of 1400 persons per km².[1] The total area of the city is 38.51 square kilometres (14.87 sq mi).


Iwade is located on the northern border of Wakayama Prefecture with Osaka Prefecture. The Kinokawa River flows along the southern border of Iwade.

Neighboring municipalities

Wakayama Prefecture

Osaka Prefecture


Iwade has a Humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Iwade is 15.1 °C. The average annual rainfall is 1713 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.5 °C, and lowest in January, at around 4.4 °C.[2]


Per Japanese census data,[3] the population of Iwade has increased rapidly over the past 60 years.

Historical population
1960 12,810—    
1970 15,980+24.7%
1980 24,125+51.0%
1990 32,846+36.1%
2000 48,156+46.6%
2010 52,890+9.8%


The area of the modern city of Iwade was within ancient Kii Province. Negoroji temple was founded in the 12th century. After the Meiji restoration, the area became part of Naga District, Wakayama, and the village of Iwade was established with the creation of the modern municipalities system on April 1, 1889. Iwade was promoted to town status on August 1, 1908. On September 30, 1956 Yade annexed the neighboring villages of Yamazaki, Negoro and Kamiiwade. The five towns in Naga District other than Iwade merged on November 7, 2005 to become the city of Kinokawa. However, as the town had a population of more than 50,000 people as of the 2005 census Iwade fulfilled the requirements to gain city status by both the ordinance of Wakayama Prefecture and Local Government Law. At the request of residents, Iwade decided to gain city status alone, which was attained on April 1, 2006


Iwade has a mayor-council form of government with a directly elected mayor and a unicameral city council of 14 members. Iwade contributes two members to the Wakayama Prefectural Assembly. In terms of national politics, the city is part of Wakayama 2nd district of the lower house of the Diet of Japan.


Iwade has a mixed economy of light manufacturing, logistics, and agriculture. Due to its proximity to the city of Wakayama, it is increasingly becoming a bedroom community.


Iwade has six public elementary schools and two public middle schools operated by the city government and one public high school operated by the Wakayama Prefectural Department of Education.



JR logo (west).svg
JR WestWakayama Line


Local attractions


  1. ^ "Iwade city official statistics" (in Japanese). Japan.
  2. ^ Iwade climate data
  3. ^ Iwade population statistics