Permits through August 2026Yearly permits since 1995Canyon County index 1977–2025
Canyon County (100 = first year)United States, rebased to the same startNBER recession
House prices are indexed by county, not by city: this is Canyon County's FHFA index, with the national index rebased to the same start.
Census Bureau notes: building permit figures cover new privately owned housing units authorised by permit-issuing places; permits do not mean the units were started or completed, and places that report less often than monthly are imputed in monthly totals. FHFA notes: The FHFA HPI is a broad measure of the movement of single-family house prices. The FHFA HPI is a weighted, repeat-sales index, meaning that it measures average price changes in repeat sales or refinancings on the same properties.
In the 12 months to August 2026, building permits in Caldwell, Idaho, covered 1,475 housing units (−6.0% year on year); the place lies in Canyon County.
1,131 of those units were single-family houses (77%), 75 were in two- to four-unit buildings and 269 in buildings of five or more units. That is 19.2 units per 1,000 residents, above the county's 13.3 and well above the state's 9.1.
Since 1995 the place has authorised 19,943 units, with the busiest year 2023 (1,697 units). Canyon County's FHFA house price index rose +184.8% over the ten years to 2025.
1,475units permitted, 12 months to August 2026−6.0% on the previous 12 months
1,131single-family units77% of the total
269units in 5+ unit buildings18% of the total
19.2units per 1,000 residentsCanyon County 13.3 · Idaho 9.1
Permits by month and structure type
Housing units authorised in Caldwell by month, latest 24 monthssingle-family2+ unit buildings
Units, 12 months to August 2026
Caldwell
Canyon County
Idaho
United States
All housing units
1,475
3,651
18,471
1,418,086
Single-family (1 unit)
1,131 (77%)
3,071 (84%)
14,341 (78%)
888,241 (63%)
2 units
36
52
316
34,814
3–4 units
39
117
664
17,298
5 or more units
269 (18%)
411 (11%)
3,150 (17%)
477,733 (34%)
Units per 1,000 residents
19.2
13.3
9.1
4.1
Change on previous 12 months
−6.0%
−9.6%
+1.3%
−0.1%
Permits by year since 1995
Housing units authorised in Caldwell by year, 1995–2025single-family2+ unit buildings
19,943 units since 1995; the busiest year was 2023. Annual figures include units imputed for months a place did not report.
Home prices in Canyon County
FHFA's index for Canyon County rose +184.8% over the ten years to 2025 (+11.0% a year) and +1.4% in the latest year, against +149.0% and +2.3% for Idaho. Full county page: decade table, peak-to-low declines, every ZIP code and every permit-issuing place in the county.
Questions and answers
How many homes are being built in Caldwell, ID?
1,475 housing units were authorised by building permits in the 12 months to August 2026, against 1,569 in the previous 12 months.
What kind of housing is being permitted in Caldwell?
1,131 single-family units, 36 in two-unit buildings, 39 in three- and four-unit buildings and 269 in buildings of five or more units.
How does Caldwell compare with its county and state?
19.2 units per 1,000 residents in Caldwell, 13.3 in Canyon County and 9.1 in Idaho.
How have home prices moved in Canyon County?
FHFA's index for Canyon County rose +184.8% over the ten years to 2025 and +1.4% in the latest year; the county page has the full series.
What does a permit count?
A housing unit authorised by a building permit for new privately owned residential construction, as reported to the Census Bureau Building Permits Survey by the permit-issuing office. Permits are not completions; some permitted units are never built, and places that report only annually are imputed in monthly figures.
Provenance
Permits: US Census Bureau, Building Permits Survey, place-level monthly and annual files through August 2026 (permit office 141000); county and state comparisons from the county and state files. Population: Census Bureau vintage 2025 estimates for incorporated places, matched on FIPS place code where the permit office is one. House price index: Federal Housing Finance Agency. Public domain. Corrections · Building Permits Survey.