Tehran Population 2026
Tehran, Iran 35.694390, 51.421510
UN WUP Degree of Urbanization city population at mid-year
Research snapshot
From 2000 to 2025, the UN series increased by 2,175,769 people (31.1%), equivalent to an annualized change of 1.09%. From 2025 to 2030, the same source projects an increase of 160,029 people (1.7%). The latest city density observation is 11,628 people per km² for 2026. The latest city land-area observation is 791.8 km² for 2026.
Population through time
One source series, shown without converting estimates into “live” counters.
| Year | Population | Type | Source |
|---|---|---|---|
| 1975 | 4,265,101 | Estimate | UN World Urbanization Prospects 2025 |
| 1980 | 5,107,765 | Estimate | UN World Urbanization Prospects 2025 |
| 1990 | 6,650,179 | Estimate | UN World Urbanization Prospects 2025 |
| 2000 | 6,999,195 | Estimate | UN World Urbanization Prospects 2025 |
| 2010 | 7,713,902 | Estimate | UN World Urbanization Prospects 2025 |
| 2015 | 8,117,767 | Estimate | UN World Urbanization Prospects 2025 |
| 2020 | 8,889,152 | Estimate | UN World Urbanization Prospects 2025 |
| 2025 | 9,174,964 | Estimate | UN World Urbanization Prospects 2025 |
| 2026 | 9,206,970 | Projection | UN World Urbanization Prospects 2025 |
| 2030 | 9,334,993 | Projection | UN World Urbanization Prospects 2025 |
| 2040 | 9,477,881 | Projection | UN World Urbanization Prospects 2025 |
| 2050 | 9,499,466 | Projection | UN World Urbanization Prospects 2025 |
How CityEvidence calculated the snapshot
Absolute change is the later source value minus the earlier source value. Percentage change is that difference divided by the earlier value. Annualized change uses compound annual growth across the stated interval. Projection comparisons use the UN projection already present in the source series; CityEvidence does not extend or alter the population model.
Context, without fake precision
Country-level indicators are labelled as country context and are never presented as city measurements.
Sources & provenance
See which dataset supports each city measurement and which figures are country-level context.
Source-backed profile
This profile has qualifying city-level evidence, clear source labels and enough supporting context for a full research page.
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