At the time of the 2006 National Census, the city's population was 38,521 in 9,619 households.[5] The following census in 2011 counted 41,165 people in 11,213 households.[6] The 2016 census measured the population of the city as 39,304 people in 11,501 households.[2]
The 14th-century author Hamdallah Mustawfi listed Khalkhal in his Nuzhat al-Qulub as forming part of the tuman of Ardabil.[8] He described it as "formerly a fair-sized town" that had declined to a mere village by his time.[8] He wrote that Khalkhal had succeeded the earlier city of Firuzabad as the capital of its province after Firuzabad itself had declined.[8] Mustawfi wrote that the Khalkhal province comprised about 100 villages and had four districts: Khāmidah-Bīl, Sajasrūd, Anjīlābād, and Mīsjīn.[8] It was assessed for a tax value of 30,000 dinars.[8] Water from a spring on a nearby mountain powered two watermills, which provided enough irrigation for the surrounding fields.[8] Mustawfi said its pastures were "excellent" and hunting grounds were "numerous and well-stocked with game" and wrote that the district was known for producing yogurt (māst) that was "so thick it has to be cut with a knife, as though it were cheese".[8]
^Also romanized as Khalkhāl; formerly and locally known as Herowabad (هروآباد) and Hirow (Azerbaijani: هیرو)[3]
References
^OpenStreetMap contributors (20 August 2024). "Khalkhal, Khalkhal County" (Map). openstreetmap.org (OpenStreetMap) (in Persian). Retrieved 20 August 2024.
^Khalkhal, Iran can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3070479" in the "Unique Feature Id" form, and clicking on "Search Database".
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