Idaho’s housing unit estimates increased by 2.1% in 2025 — the fastest growth rate out of all states for the second consecutive year — and added over 17,000 units. Since 2020, the state has held either the number one or number two ranking for annual housing unit growth (Figure 1).
The U.S. Census Bureau defines a housing unit as one that is intended for occupancy as its own separate living quarters with direct access either from the building’s exterior or through a common hall. Estimates include units that are both occupied and vacant.
Figure 1. Annual housing unit growth in Idaho, 2021-2025
From 2020-2025, Idaho increased its housing count by 12.3% while completing over 93,000 units. This is the second highest rate of increase nationally, sitting behind Utah (12.9%) but ahead of Texas (10.4%). Idaho’s growth rate is more than two times the 5.3% reported for the U.S. Five of Idaho’s counties — Teton, Canyon, Ada, Bonneville and Kootenai — each increased available housing units by over 14% during this five-year period.
Idaho’s housing unit growth in 2025 ranged from an increase of one unit in Clark County to a high of 5,026 in Ada. As shown in Figure 2 below, the counties with the fastest housing unit growth rates were Teton (5%), Bonneville (4.4%) and Canyon (3.7%). Their growth rates ranked in the top 30 nationally for counties with at least 5,000 housing units and they were also Idaho’s fastest growing counties in the previous year of 2024.
Figure 2. Top counties in Idaho by housing unit growth rate, 2024-2025
The four most populated urban counties of Ada, Canyon, Kootenai and Bonneville each added over 1,500 housing units in 2025. Cumulatively, they added 12,300 housing units and accounted for 71% of statewide unit growth. In 2024, these same four counties added nearly 13,000 housing units and comprised 74% of net new housing units within Idaho.
Combined, Bonneville and Canyon added over 700 more housing units in 2025 than 2024. In contrast, Ada and Kootenai reported a combined slowing of 1,300 fewer new housing units compared with the previous year.
The slowest housing unit growth in 2025 occurred within the less populated rural counties of Power, Idaho, Clark and Lincoln. Housing unit growth rates for each of these counties ranged between 0.1%-0.2% and when combined they added 20 new housing units during the year.
No county in Idaho is estimated to have experienced a decline in housing units during any of the past five years.
As shown in Figure 3 below, Idaho counties with at least 10,000 housing units had the fastest annual growth rates in 2025, despite seeing a slight decrease from the year prior. In contrast, the less populated counties with fewer than 5,000 housing units had lower growth rates overall in 2025 the but still experienced an increase in their rate from the year prior.
Figure 3. Housing unit growth rates for Idaho counties by total housing units, 2020-2025
To find out more about Census population data for Idaho, visit Labor’s census page.
Lisa.Grigg@labor.idaho.gov, regional economist
Idaho Department of Labor
208-696-2256
This Idaho Department of Labor project is funded by the U.S. Department of Labor for SFY26 as part of a Workforce Information grant (41%) and state/nonfederal funds (59%) totaling $860,595.
This workforce product was funded by a grant awarded by the U.S. Department of Labor’s Employment and Training Administration. The product was created by the recipient and does not necessarily reflect the official position of the U.S. Department of Labor. The U.S. Department of Labor makes no guarantees, warranties, or assurances of any kind, express or implied, with respect to such information, including any information on linked sites and including, but not limited to, accuracy of the information or its completeness, timeliness, usefulness, adequacy, continued availability, or ownership. This product is copyrighted by the institution that created it. Internal use by an organization and/or personal use by an individual for non-commercial purposes is permissible. All other uses require the prior authorization of the copyright owner.