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State, one year

Idaho in 2018

Index change and building permits for the year, with every county.

In 2018 the FHFA house price index for Idaho changed +12.1%, against +5.7% for the United States and +9.3% in 2017.

15,824 housing units were authorised by building permits in the state that year (12,176 single-family), +11.6% on 2017; the national total was 1,328,827.

+12.1%Idaho index, 2017–2018US +5.7%
15,824housing units permitted in 201812,176 single-family
41 of 42counties with a rising indexmedian county +10.1%
1,328,827units permitted nationally in 2018
← 2017Idaho overview2019 →

Counties in 2018

Ranked by the county index change from 2017 to 2018 (FHFA annual county index). Permits are units authorised in 2018; per 1,000 uses the vintage 2025 population.

CountyIndex change 2018Units permittedSingle-familyPer 1,000
Butte County+41.9%000.0
Owyhee County+20.0%42383.3
Gem County+17.6%95874.4
Canyon County+16.8%2,2791,9358.3
Fremont County+16.8%1061067.5
Payette County+16.1%79772.8
Lemhi County+16.0%32323.8
Oneida County+14.0%12122.4
Ada County+13.8%6,4064,77011.7
Kootenai County+12.7%2,2101,65811.5
Bonner County+12.4%99911.8
Bingham County+12.1%1411392.8
Boise County+12.1%959311.1
Teton County+12.0%20814315.7
Jerome County+11.7%85853.2
Lincoln County+11.2%661.1
Bannock County+11.0%4043724.4
Bonneville County+10.9%8298296.1
Valley County+10.9%18218014.2
Twin Falls County+10.4%5004365.1
Custer County+10.1%110.2
Jefferson County+10.1%2081615.9
Boundary County+10.0%68684.9
Washington County+9.9%26262.2
Elmore County+9.1%38381.3
Gooding County+9.0%36362.2
Franklin County+8.9%48483.0
Shoshone County+8.5%10100.7
Blaine County+8.0%104804.1
Latah County+8.0%193874.6
Madison County+8.0%84114115.2
Idaho County+7.7%220.1
Cassia County+6.7%93833.5
Minidoka County+6.2%56522.4
Bear Lake County+6.1%49497.3
Nez Perce County+6.0%86782.0
Benewah County+4.8%32283.0
Clearwater County+4.7%23232.5
Power County+4.2%18182.2
Adams County+3.7%12122.4
Caribou County+3.5%30304.1
Lewis County−2.4%2627.0

Permits by year, 1995–2025

Housing units authorised in Idaho by year010,00020,00030,0001995: 10,666 units (8,366 single-family, 2,300 in multi-unit buildings)19951996: 10,755 units (9,180 single-family, 1,575 in multi-unit buildings)1997: 10,337 units (8,838 single-family, 1,499 in multi-unit buildings)1998: 11,667 units (10,277 single-family, 1,390 in multi-unit buildings)1999: 12,181 units (10,497 single-family, 1,684 in multi-unit buildings)2000: 10,915 units (9,681 single-family, 1,234 in multi-unit buildings)20002001: 11,820 units (9,738 single-family, 2,082 in multi-unit buildings)2002: 13,488 units (10,845 single-family, 2,643 in multi-unit buildings)2003: 15,091 units (12,601 single-family, 2,490 in multi-unit buildings)2004: 18,108 units (15,273 single-family, 2,835 in multi-unit buildings)2005: 21,578 units (19,172 single-family, 2,406 in multi-unit buildings)20052006: 17,075 units (14,789 single-family, 2,286 in multi-unit buildings)2007: 12,105 units (9,551 single-family, 2,554 in multi-unit buildings)2008: 6,470 units (5,673 single-family, 797 in multi-unit buildings)2009: 4,863 units (4,274 single-family, 589 in multi-unit buildings)2010: 4,153 units (3,568 single-family, 585 in multi-unit buildings)20102011: 3,815 units (3,163 single-family, 652 in multi-unit buildings)2012: 6,265 units (5,036 single-family, 1,229 in multi-unit buildings)2013: 8,110 units (6,360 single-family, 1,750 in multi-unit buildings)2014: 8,797 units (6,293 single-family, 2,504 in multi-unit buildings)2015: 9,954 units (7,784 single-family, 2,170 in multi-unit buildings)20152016: 12,165 units (9,739 single-family, 2,426 in multi-unit buildings)2017: 14,183 units (11,019 single-family, 3,164 in multi-unit buildings)2018: 15,824 units (12,176 single-family, 3,648 in multi-unit buildings)2019: 17,716 units (12,978 single-family, 4,738 in multi-unit buildings)2020: 19,130 units (14,969 single-family, 4,161 in multi-unit buildings)20202021: 21,732 units (16,154 single-family, 5,578 in multi-unit buildings)2022: 18,706 units (11,912 single-family, 6,794 in multi-unit buildings)2023: 17,919 units (12,081 single-family, 5,838 in multi-unit buildings)2024: 17,630 units (14,821 single-family, 2,809 in multi-unit buildings)2025: 17,944 units (14,112 single-family, 3,832 in multi-unit buildings)2025

Housing units authorised in Idaho by yearsingle-family2+ unit buildings

Source: Federal Housing Finance Agency annual state and county house price indexes (updated March 31, 2026); Census Bureau Building Permits Survey annual state and county files. Public domain. Methodology.