1 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Urban Honolulu | 1 | 343,229 | 348,442 | -0.25% | 5,662 | 61 | CDP |
Urban Honolulu is the largest city in Honolulu County, with a population of 343,229.
Urban Honolulu is the smallest city in Honolulu County, with a population of 343,229.
There is 1 city in Honolulu County, Hawaii.