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Idaho · Insulator (Heat & Frost / Asbestos Worker) · 2 counties
Insulator (Heat & Frost / Asbestos Worker) prevailing wage, Custer County group, Idaho (2 counties)
DOL sets the same insulator rates, row for row, in 2 counties: Clark and Custer. Every figure on this page applies in each of them.
$21.93an hour, base wage + fringe benefits (our sum)
$20.13 base wage + $1.80 fringe benefits · SUID2010-016
On federally funded or assisted building construction in each of these 2 counties, an insulator must be paid at least $21.93 an hour: a $20.13 base wage plus $1.80 in fringe benefits, under wage determination ID20260023 (modification 2). DOL prints no total, so $21.93 is our sum of the two.
Wage determination ID20260023, modification 2, published May 18, 2026, for building construction; rate identifier SUID2010-016 (August 8, 2012). Checked against sam.gov on October 25, 2026.
Davis-Bacon is the only prevailing wage here (federally funded or assisted work). Idaho repealed its law in 1985 (DOL state table).
Base wage and fringe benefits: $20.13 + $1.80
The base wage is the taxable hourly wage. DOL prints the fringe benefits as one hourly figure, not itemized; it can go to health, pension, vacation and training plans, or be paid as cash where the state allows.
| Base wage (taxable) | $20.13 |
| Fringe benefits (one figure, not itemized) | $1.80 |
| Base + fringe benefits (our sum; DOL prints no total) | $21.93 |
When does this rate change?
- A contract keeps the wage determination in its bid documents. Modifications published before bid opening apply to it, though one published less than 10 days before can be left out if the agency finds there isn't time to tell bidders (29 CFR 1.6(c)).
- DOL changes a WD by publishing a numbered modification on SAM.gov. This page reads the modification named in the Source line; the Idaho change log lists what each one changed.
How the Custer County group compares
The main insulator rate in every county that has one, and how the pay splits here and nearby. All bars use the same scale.
Every county in Idaho
Wage and fringe benefits, nearby
- Custer County groupbase $20.13$21.93
- Lemhi Countybase $20.13$21.93
- Blaine Countybase $20.13$21.93
- Latah Countybase $20.17$21.96
Which county is in which insulator group
Every Idaho county with a insulator rate. Counties DOL treats alike share one page; the rest have their own.
| Counties | Main classification | Base wage | Total rate |
|---|---|---|---|
| Latah County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.17 | $21.96 |
| Bingham County group, 6 localities: Bear Lake, Bingham, Fremont, Lemhi, Oneida, Teton | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Elmore County group, 5 localities: Adams, Elmore, Payette, Valley, Washington | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Custer County group, 2 localities: Clark, Custer | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Idaho County group, 2 localities: Idaho, Lewis | ASBESTOS WORKER/HEAT & FROST INSULATOR | $20.13 | $21.93 |
| Blaine County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Bonner County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Boundary County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Caribou County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Clearwater County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Madison County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Minidoka County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Shoshone County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
| Twin Falls County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $20.13 | $21.93 |
4 groups of counties with identical DOL rates, and 10 counties with rates of their own.
More from DOL on this rate
- SAM.gov wage determinations
- Davis-Bacon determinations list journeyworker rates. Apprentices in a program registered with DOL or a recognized state agency can be paid the program's percentage of the rate, within its ratio; anyone else gets the full rate (29 CFR 5.5(a)(4)).
Are you being paid this rate?
Add your base pay to the fringe your employer pays for you, in cash or into plans, and compare the sum with the total. The Department of Labor's Wage and Hour Division takes complaints: 1-866-487-9243, or dol.gov/agencies/whd/contact/complaints.
Source
U.S. Department of Labor, Wage and Hour Division (DOL), Davis-Bacon wage determinations on SAM.gov, as of October 25, 2026. For the row this page leads with:
- Clark: ID20260023 Mod 2
- Custer: ID20260023 Mod 2
We read every active Idaho Davis-Bacon wage determination from SAM.gov's own data and check every number with a second, independent read of the same file. DOL prints no total; ours is base plus fringe. How we check · Download every Idaho rate as CSV · Report an error