City evidence profile
Nkayi Population 2015
Republic of the Congo -4.182547, 13.284711
2015 population · Estimate
90,832
UN WUP Degree of Urbanization city population at mid-year
Location record
Administrative area not supplied
Republic of the Congo · COG
CityEvidence derived analysis
Research snapshot
The latest city density observation is 6,055 people per km² for 2015. The latest city land-area observation is 15.0 km² for 2015.
2015 density6,055people/km²
Population through time
One source series, shown without converting estimates into “live” counters.
| Year | Population | Type | Source |
|---|---|---|---|
| 1975 | 69,940 | Estimate | UN World Urbanization Prospects 2025 |
| 2005 | 93,354 | Estimate | UN World Urbanization Prospects 2025 |
| 2010 | 109,327 | Estimate | UN World Urbanization Prospects 2025 |
| 2015 | 90,832 | Estimate | UN World Urbanization Prospects 2025 |
Context, without fake precision
Country-level indicators are labelled as country context and are never presented as city measurements.
Country population growth
2.4%
2025 · World Bank · national value
Country urban population
64.1%
2025 · World Bank · national value
Country life expectancy
66.0
2024 · World Bank · national value
Country population
6,484,437
2025 · World Bank · national value
City population density
6,055
2015 · UN World Urbanization Prospects 2025 · people/km²
City land area
15.0
2015 · UN World Urbanization Prospects 2025 · km²
Sources & provenance
See which dataset supports each city measurement and which figures are country-level context.
UN World Urbanization Prospects 2025City population · 2015 · Estimate · refreshed 2026-10-12
Open source ↗UN World Urbanization Prospects 2025City population density · 2015 · refreshed 2026-10-12
Open source ↗UN World Urbanization Prospects 2025City land area · 2015 · refreshed 2026-10-12
Open source ↗World Bank Open DataNational context series · latest population observation 2025 · refreshed 2026-10-12
Open source ↗GeoNames geographic referenceCoordinates, country and administrative-area identity used for place reference and matching.
Source notes →🛡️ Research standard
Source-backed profile
This profile has qualifying city-level evidence, clear source labels and enough supporting context for a full research page.
How profiles are verified