| Ogawa | |
| Native Name Lang: | ja |
| Settlement Type: | Town |
| Pushpin Map: | Japan |
| Coordinates: | 36.0567°N 139.2618°W |
| Subdivision Type: | Country |
| Subdivision Name: | Japan |
| Subdivision Type1: | Region |
| Subdivision Name1: | Kantō |
| Subdivision Type2: | Prefecture |
| Subdivision Name2: | Saitama |
| Subdivision Type3: | District |
| Subdivision Name3: | Hiki |
| Leader Title: | Mayor |
| Area Total Km2: | 60.36 |
| Population Total: | 28971 |
| Population As Of: | March 2021 |
| Population Density Km2: | auto |
| Timezone1: | Japan Standard Time |
| Utc Offset1: | +9 |
| Blank Name Sec1: | City Symbols |
| Blank1 Name Sec1: | - Tree |
| Blank1 Info Sec1: | Zelkova serrata |
| Blank2 Name Sec1: | - Flower |
| Blank2 Info Sec1: | Adonis ramosa |
| Blank3 Name Sec1: | - Bird |
| Blank3 Info Sec1: | Japanese white-eye |
| Blank Name Sec2: | Phone number |
| Blank Info Sec2: | 0493-72-1221 |
| Blank1 Name Sec2: | Address |
| Blank1 Info Sec2: | 55 Otsuka, Ogawa-machi, Hiki-gun, Saitama-ken 355-0392 |
is a town in Saitama Prefecture, Japan., the town had an estimated population of 28,971 in 12,989 households and a population density of 480 persons per km2.[1] The total area of the town is 60.36sqkm.
Ogawa is in central Saitama Prefecture in the Ogawa basin and is surrounded by the Sotochichibu Mountains. Surrounding municipalities are Ranzan, Tokigawa, Yorii and Higashichichibu, all in Saitama Prefecture.
Ogawa has a humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Ogawa is 14.0 °C. The average annual rainfall is 1746 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.3 °C, and lowest in January, at around 3.0 °C.[2]
Per Japanese census data,[3] the population of Ogawa peaked around the year 2000 and has declined since.
The village of Ogawa was created within Hiki District, Saitama with the establishment of the modern municipalities system on April 1, 1889. Ogawa annexed the neighboring villages of Okawa, Takezawa and Yawata on February 1, 1955. Tokigawa and Tamagawa merged to form the town of Tokigawa.
Ogawa has a mayor-council form of government with a directly elected mayor and a unicameral town council of 16 members. Ogawa, together with the towns of Tokigawa, Ranzan and Namekawa, contributes one member to the Saitama Prefectural Assembly. In terms of national politics, the town is part of Saitama 10th district of the lower house of the Diet of Japan.
The town used to be famous for Japanese traditional papermaking (washi).[4]
Ogawa has six public elementary schools and three public middle schools operated by the town government, and one public high school operated by the Saitama Prefectural Board of Education.