Growth brief
Treasure Valley population growth in 2026: where 28,920 additional residents were counted
A city-by-city and county-level analysis of the 2026 COMPASS population estimates for Ada and Canyon counties.
Read researchMarket reports · Meridian
Population & growth
City population estimates and annual growth across the Treasure Valley.
Published resources
Growth brief
Treasure Valley growth in 2025: accounting for a 24,950-person estimated increase
A source-linked review of 2025 population change across Ada and Canyon counties, including all nine Renew Atlas cities.
Read researchCity baselines
COMPASS city-limit estimates, 2025–2026.
Ada County
Meridian
- 2025 population
- 147,340
- 2026 population
- 152,070
- Annual change
- 4,730 (3.2%)