Ranking of Washington, ID Cities and Places By population in 2020
Updated on June 27, 2025.
Based on the US Census Vintage data estimates, in 2020, among all Washington, ID cities and places, Weiser city had the highest population (5.66K), followed by Balance of Washington County (4.35K), and Cambridge city (350).
The chart below shows the top 4 cities and places, and the table below shows the ranking of all Washington cities and places.
You can see similar information for other Idaho counties. You can also see the ranking of all cities and places in Idaho.
Data Source: US Census Bureau (Vintage).
Ranking of Washington, ID Cities and Places By population in 2020
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| Rank | City or Place | Population |
|---|---|---|
| 1 | Weiser city | 5663 |
| 2 | Balance of Washington County | 4353 |
| 3 | Cambridge city | 350 |
| 4 | Midvale city | 194 |