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Not to be confused with Semnan province or Semirom County.
For the administrative division of Iran, see Semnan Province. For the city, see Semnan.

This article contains Persian text. Without proper rendering support, you may see question marks, boxes, or other symbols.

Semnan County (Persian: شهرستان سمنان) is in Semnan province, Iran. Its capital is the city of Semnan.[4]

History

In 2007, Mehdishahr District was separated from the county in the establishment of Mehdishahr County.[5] In 2012, Sorkheh District[a] was separated from the county to establish Sorkheh County[7] and renamed the Central District in 2021.[6]

Demographics

Population

At the time of the 2006 National Census, the county’s population was 186,159 in 52,869 households.[8] The following census in 2011 counted 182,260 people in 53,107 households.[9] The 2016 census measured the population of the county as 196,521 in 52,011 households.[3]

Administrative divisions

Semnan County’s population history and administrative structure over three consecutive censuses are shown in the following table.

Semnan County Population
Administrative Divisions 2006[8] 2011[9] 2016[3]
Central District 135,872 167,407 196,521
Howmeh RD 10,873 13,727 11,392
Semnan (city) 124,999 153,680 185,129
Mehdishahr District[b] 36,093
Chashm RD 6,414
Poshtkuh RD 1,825
Mehdishahr (city) 20,581
Shahmirzad (city) 7,273
Sorkheh District[c] 14,194 14,853
Hafdar RD 2,997 2,985
Lasgerd RD 2,135 2,157
Sorkheh (city) 9,062 9,711
Total 186,159 182,260 196,521
RD = Rural District

See also

flag Iran portal

Notes

  1. ^ Renamed the Central District of Sorkheh County[6]
  2. ^ Transferred to Mehdishahr County[5]
  3. ^ Transferred to Sorkheh County[7] and renamed the Central District[6]

References

  1. ^ OpenStreetMap contributors (29 January 2026). “بخش مرکزی سمنان [Central District of Semnan], Semnan County, Semnan Province, Iran” (Map). OpenStreetMap (in Persian). Retrieved 29 January 2026.
  2. ^ “8H7M4R88+MM” (Map). Google Maps. Retrieved 29 January 2026.
  3. ^ a b c سرشماري عمومي نفوس و مسكن 1395 : استان سمنان [General Population and Housing Census 2016: Semnan Province]. مرکز آمار ایران [Statistical Centre of Iran] (in Persian). Archived from the original (Excel) on 17 November 2020. Retrieved 19 December 2022.
  4. ^ Habibi, Hassan (12 September 1990) [تاریخ تصویب (Approval date) 1369/06/21 (Iranian Jalali calendar)]. تصویب سازمان و سلسله تابعیت عناصر و واحدهای تقسیمات کشوری استان سمنان به مرکزیت شهر سمنان [‌Approval of the organization and chain of citizenship of the elements and units of the national divisions of Semnan province, centered in Semnan city]. لام تا کام [Lam ta Kam] (in Persian). ‌وزارت کشور [Ministry of the Interior]. کمیسیون سیاسی دفاعی هیأت دولت [Political Defense Commission of the Government Board]. شناسه [ID] 6E990373-75CA-4068-833E-25F3268CCDCE. شماره دوره [Course number] 69, شماره جلد [Volume number] 3. Archived from the original on 2 January 2024. Retrieved 24 January 2026.
  5. ^ a b Davoodi, Parviz (9 December 2007) [تاریخ تصویب (Approval date) 1386/09/18 (Iranian Jalali calendar)]. تصویب نامه درخصوص اصلاحات تقسیمات کشوری در استان سمنان [‌Approval regarding the reforms of national divisions in Semnan province]. لام تا کام [Lam ta Kam] (in Persian). ‌وزارت کشور [Ministry of the Interior]. کمیسیون سیاسی دفاعی هیأت دولت [Political Defense Commission of the Government Board]. شناسه [ID] 5B5D84AC-D66D-497B-A9BD-AA6DBDEFA34B. Archived from the original on 2 January 2024. Retrieved 27 January 2026.
  6. ^ a b c Jahangiri, Eshaq (17 March 2021) [تاریخ تصویب (Approval date) 1399,12,27 (Iranian Jalali calendar)]. تصويب نامه در خصوص تقسيمات كشوري در شهرستان سمنان استان سمنان [‌Approval letter regarding country divisions in Semnan County, Semnan Province]. سامانه ملی قوانین و مقررات [National System of Laws and Regulations] (in Persian). ‌وزارت کشور [Ministry of the Interior]. هیات وزیران [Council of Ministers]. پيشنهاد شماره [Proposal Number] 153538. Archived from the original on 25 April 2023. Retrieved 29 January 2026.
  7. ^ a b Rahimi, Mohammad Reza (30 September 2012) [تاریخ تصویب (Approval date) 9/7/1391 (Iranian Jalali calendar)]. تصویب نامه در خصوص ایجاد شهرستان سرخه به مرکزیت شهر سرخهدر استان سمنان [‌Approval regarding the establishment of Sorkheh County with Sorkheh city as its center in Semnan province]. لام تا کام [Lam ta Kam] (in Persian). ‌وزارت کشور [Ministry of the Interior]. کمیسیون سیاسی دفاعی هیأت دولت [Political Defense Commission of the Government Board]. شماره ابلاغیه 219942/ت48486هـ [Notification number 219942/T48486 AH]. Archived from the original on 29 January 2026. Retrieved 29 January 2026.
  8. ^ a b سرشماري عمومي نفوس و مسكن 1385 : استان سمنان [General Population and Housing Census 2006: Semnan Province]. مرکز آمار ایران [Statistical Centre of Iran] (in Persian). Archived from the original (Excel) on 20 September 2011. Retrieved 25 September 2022.
  9. ^ a b سرشماري عمومي نفوس و مسكن 1390 : استان سمنان [General Population and Housing Census 2011: Semnan Province]. Iran Data Portal—Syracuse University (in Persian). مرکز آمار ایران [Statistical Centre of Iran]. Archived from the original (Excel) on 20 January 2023. Retrieved 19 December 2022.