| Kohneh Jolgeh | |
| Native Name: | Persian: كهنه جلگه |
| Native Name Lang: | fa |
| Settlement Type: | Village |
| Pushpin Map: | Iran |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Country |
| Subdivision Name: | Iran |
| Subdivision Type1: | Province |
| Subdivision Name1: | North Khorasan |
| Subdivision Type2: | County |
| Subdivision Name2: | Maneh |
| Subdivision Type3: | District |
| Subdivision Name3: | Shirin Su |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Kohneh Jolgeh |
| Unit Pref: | Metric |
| Population As Of: | 2016 |
| Population Total: | 2010 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
Kohneh Jolgeh (Persian: كهنه جلگه) is a village in, and the capital of, Kohneh Jolgeh Rural District of Shirin Su District, Maneh County, North Khorasan province, Iran.[2]
At the time of the 2006 National Census, the village's population was 1,422 in 319 households, when it was in Shirin Su Rural District of the former Maneh District of Maneh and Samalqan County.[3] The following census in 2011 counted 1,889 people in 421 households.[4] The 2016 census measured the population of the village as 2,010 people in 467 households. It was the most populous village in its rural district.[5]
In 2023, the district was separated from the county in the establishment of Maneh County. The rural district was transferred to the new Shirin Su District, and Kohneh Jolgeh was transferred to Kohneh Jolgeh Rural District created in the district.[2]