Lahijan County
county in Gilan Province, Iran

Lahijan County (Persian: شهرستان لاهیجان) is in Gilan province, in northwestern Iran. Its capital is the city of Lahijan.
Demographics
Population
At the time of the 2006 National Census, the county's population was 161,491 in 48,075 households. The following census in 2011 counted 168,829 people in 55,174 households. The 2016 census measured the population of the county as 167,544 in 58,378 households.
Administrative divisions
Lahijan County's population history and administrative structure over three consecutive censuses are shown in the following table.
Begin with the source’s own compact description: “Lahijan County” is county in Gilan Province, Iran. The dossier treats that line as a proposition to test through Lahijan, County and county, not as a finished interpretation.
Why this record matters
The phrase “county in Gilan Province, Iran” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Nov 14, 2025. The linked authority identifier is Q1289706. Authority coordinates are 37.233, 50.033. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2006, 2011 and 2016.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Lahijan County”, its source revision and the description used here.
- Expand the search: follow Lahijan County primary sources, Lahijan County archive and Lahijan research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Lahijan County”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Lahijan County” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.