Zanjan's 2020 population is now estimated at 467,460. In 1950, the population of Zanjan was 41,029. Zanjan has grown by 9,794 since 2015, which represents a 2.14% annual change. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Zanjan, which typically includes Zanjan's population in addition to adjacent suburban areas.
| Year | Population | Growth Rate (%) | Growth |
|---|---|---|---|
| 2035 | 560,995 | 0.76% | 4,212 |
| 2034 | 556,783 | 0.78% | 4,318 |
| 2033 | 552,465 | 0.81% | 4,451 |
| 2032 | 548,014 | 0.85% | 4,615 |
| 2031 | 543,399 | 0.89% | 4,820 |
| 2030 | 538,579 | 0.95% | 5,050 |
| 2029 | 533,529 | 1.01% | 5,332 |
| 2028 | 528,197 | 1.09% | 5,696 |
| 2027 | 522,501 | 1.19% | 6,149 |
| 2026 | 516,352 | 1.31% | 6,669 |
| 2025 | 509,683 | 1.44% | 7,233 |
| 2024 | 502,450 | 1.58% | 7,817 |
| 2023 | 494,633 | 1.73% | 8,414 |
| 2022 | 486,219 | 1.91% | 9,121 |
| 2021 | 477,098 | 2.06% | 9,638 |
| 2020 | 467,460 | 2.14% | 9,794 |
| 2019 | 457,666 | 2.19% | 9,806 |
| 2018 | 447,860 | 2.21% | 9,693 |
| 2017 | 438,167 | 2.21% | 9,483 |
| 2016 | 428,684 | 2.22% | 9,303 |
| 2015 | 419,381 | 2.22% | 9,089 |
| 2014 | 410,292 | 2.22% | 8,892 |
| 2013 | 401,400 | 2.21% | 8,688 |
| 2012 | 392,712 | 2.16% | 8,319 |
| 2011 | 384,393 | 2.04% | 7,698 |
| 2010 | 376,695 | 2.04% | 7,544 |
| 2009 | 369,151 | 2.04% | 7,382 |
| 2008 | 361,769 | 2.05% | 7,255 |
| 2007 | 354,514 | 2.03% | 7,058 |
| 2006 | 347,456 | 2.01% | 6,834 |
| 2005 | 340,622 | 2.00% | 6,690 |
| 2004 | 333,932 | 2.01% | 6,577 |
| 2003 | 327,355 | 2.01% | 6,438 |
| 2002 | 320,917 | 2.01% | 6,311 |
| 2001 | 314,606 | 2.00% | 6,180 |
| 2000 | 308,426 | 2.01% | 6,074 |
| 1999 | 302,352 | 2.01% | 5,946 |
| 1998 | 296,406 | 2.01% | 5,830 |
| 1997 | 290,576 | 2.11% | 5,993 |
| 1996 | 284,583 | 2.42% | 6,717 |
| 1995 | 277,866 | 2.41% | 6,551 |
| 1994 | 271,315 | 2.41% | 6,395 |
| 1993 | 264,920 | 2.41% | 6,237 |
| 1992 | 258,683 | 2.65% | 6,689 |
| 1991 | 251,994 | 3.36% | 8,183 |
| 1990 | 243,811 | 3.36% | 7,917 |
| 1989 | 235,894 | 3.35% | 7,650 |
| 1988 | 228,244 | 3.36% | 7,422 |
| 1987 | 220,822 | 4.40% | 9,316 |
| 1986 | 211,506 | 8.05% | 15,749 |
| 1985 | 195,757 | 8.03% | 14,557 |
| 1984 | 181,200 | 8.06% | 13,511 |
| 1983 | 167,689 | 8.04% | 12,486 |
| 1982 | 155,203 | 8.05% | 11,557 |
| 1981 | 143,646 | 8.03% | 10,682 |
| 1980 | 132,964 | 8.06% | 9,914 |
| 1979 | 123,050 | 8.05% | 9,163 |
| 1978 | 113,887 | 8.05% | 8,480 |
| 1977 | 105,407 | 7.10% | 6,991 |
| 1976 | 98,416 | 5.51% | 5,142 |
| 1975 | 93,274 | 5.50% | 4,866 |
| 1974 | 88,408 | 5.50% | 4,612 |
| 1973 | 83,796 | 5.50% | 4,366 |
| 1972 | 79,430 | 5.51% | 4,150 |
| 1971 | 75,280 | 5.51% | 3,928 |
| 1970 | 71,352 | 5.50% | 3,722 |
| 1969 | 67,630 | 5.50% | 3,525 |
| 1968 | 64,105 | 5.51% | 3,348 |
| 1967 | 60,757 | 4.30% | 2,506 |
| 1966 | 58,251 | 2.21% | 1,262 |
| 1965 | 56,989 | 2.21% | 1,233 |
| 1964 | 55,756 | 2.22% | 1,210 |
| 1963 | 54,546 | 2.21% | 1,182 |
| 1962 | 53,364 | 2.21% | 1,156 |
| 1961 | 52,208 | 2.21% | 1,130 |
| 1960 | 51,078 | 2.22% | 1,108 |
| 1959 | 49,970 | 2.21% | 1,082 |
| 1958 | 48,888 | 2.22% | 1,060 |
| 1957 | 47,828 | 2.21% | 1,034 |
| 1956 | 46,794 | 2.22% | 1,016 |
| 1955 | 45,778 | 2.21% | 992 |
| 1954 | 44,786 | 2.21% | 970 |
| 1953 | 43,816 | 2.21% | 948 |
| 1952 | 42,868 | 2.22% | 930 |
| 1951 | 41,938 | 2.22% | 909 |
| 1950 | 41,029 | 0.00% |
| Name | Population | 2020 Growth |
|---|---|---|
| Tehran | 9,134,708 | 1.34% |
| Mashhad | 3,208,336 | 1.77% |
| Esfahan | 2,132,037 | 2.19% |
| Shiraz | 1,651,362 | 1.44% |
| Tabriz | 1,611,133 | 0.94% |
| Karaj | 1,580,413 | -0.06% |
| Qom | 1,287,937 | 1.85% |
| Ahvaz | 1,244,250 | 1.33% |
| Kermanshah | 1,025,740 | 2.11% |
| Orumiyeh | 793,044 | 1.96% |
| Rasht | 712,715 | 1.28% |
| Zahedan | 609,873 | 1.03% |
| Bandar Abbas | 606,633 | 3.65% |
| Hamadan | 577,808 | 1.14% |
| Ardabil | 567,912 | 1.86% |
| Yazd | 565,449 | 1.74% |
| Arak | 551,006 | 1.51% |
| Kerman | 541,485 | 0.29% |
| Eslamshahr | 498,261 | 2.75% |
| Zanjan | 467,460 | 2.14% |