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Iowa · Insulator (Heat & Frost / Asbestos Worker) · 2 counties
Insulator (Heat & Frost / Asbestos Worker) prevailing wage, Delaware County group, Iowa (2 counties)
DOL sets the same insulator rates, row for row, in 2 counties: Clayton and Delaware. Every figure on this page applies in each of them.
$22.76an hour, base wage + fringe benefits (our sum) · MECHANICAL
$18.09 base wage + $4.67 fringe benefits · SUIA2016-034
On federally funded or assisted building construction in each of these 2 counties, an insulator working as mechanical must be paid at least $22.76 an hour: a $18.09 base wage plus $4.67 in fringe benefits, under wage determination IA20260059 (modification 1). DOL prints no total, so $22.76 is our sum of the two.
Wage determination IA20260059, modification 1, published May 18, 2026, for building construction; rate identifier SUIA2016-034 (July 19, 2016). Checked against sam.gov on October 25, 2026.
Davis-Bacon is the only prevailing wage here (federally funded or assisted work). Iowa has no state prevailing wage law (DOL state table).
Base wage and fringe benefits: $18.09 + $4.67
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) | $18.09 |
| Fringe benefits (one figure, not itemized) | $4.67 |
| Base + fringe benefits (our sum; DOL prints no total) | $22.76 |
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 Iowa change log lists what each one changed.
How the Delaware 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 Iowa
Wage and fringe benefits, nearby
- Delaware County groupbase $18.09$22.76
- Buchanan Countybase $18.09$22.76
- Dubuque Countybase $36.06$60.41
- Clayton Countybase $18.09$22.76
Which county is in which insulator group
Every Iowa county with a insulator rate. Counties DOL treats alike share one page; the rest have their own.
| Counties | Main classification | Base wage | Total rate |
|---|---|---|---|
| Benton County group, 2 localities: Benton, Jones | ASBESTOS WORKER/HEAT & FROST INSULATOR | $36.06 | $60.41 |
| Dubuque County | ASBESTOS WORKER/HEAT & FROST INSULATOR | $36.06 | $60.41 |
| Linn County | ASBESTOS WORKER/HEAT & FROST INSULATOR | $36.06 | $60.41 |
| Scott County | ASBESTOS WORKER/HEAT & FROST INSULATOR | $36.06 | $60.41 |
| Harrison County | ASBESTOS WORKER/HEAT & FROST INSULATOR | $38.26 | $58.80 |
| Mills County | ASBESTOS WORKER/HEAT & FROST INSULATOR | $38.26 | $58.80 |
| Pottawattamie County | ASBESTOS WORKER/HEAT & FROST INSULATOR | $38.26 | $58.80 |
| Muscatine County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $24.80 | $34.97 |
| Black Hawk County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $23.28 | $32.19 |
| Bremer County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $23.28 | $32.19 |
| Grundy County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $23.28 | $32.19 |
| Woodbury County | INSULATOR - MECHANICAL (DUCT, PIPE & MECHANICAL SYSTEM INSULATION) | $23.50 | $31.75 |
| Mahaska County group, 9 localities: Henry, Jackson, Jefferson, Keokuk, Louisa, Mahaska, Monroe, Tama, Van Buren | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Appanoose County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Cedar County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Clinton County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Davis County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Des Moines County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Iowa County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Jasper County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Lee County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Marion County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Marshall County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Poweshiek County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Wapello County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $19.04 | $26.36 |
| Washington County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $16.70 | $24.82 |
| Johnson County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $16.20 | $24.34 |
| Buchanan County group, 9 localities: Buchanan, Butler, Chickasaw, Fayette, Franklin, Hardin, Mitchell, Winneshiek, Worth | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.09 | $22.76 |
| Delaware County group, 2 localities: Clayton, Delaware | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.09 | $22.76 |
| Allamakee County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.09 | $22.76 |
| Floyd County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.09 | $22.76 |
| Howard County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.09 | $22.76 |
| Madison County group, 2 localities: Guthrie, Madison | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.45 | $22.49 |
| Dallas County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.45 | $22.49 |
| Warren County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.45 | $22.49 |
| Shelby County group, 10 localities: Decatur, Fremont, Greene, Lucas, Monona, Montgomery, Ringgold, Shelby, Taylor, Wayne | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.01 | $22.20 |
| Cass County group, 2 localities: Cass, Clarke | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.01 | $22.20 |
| Adair County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.01 | $22.20 |
| Adams County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.01 | $22.20 |
| Audubon County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.01 | $22.20 |
| Boone County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.01 | $22.20 |
| Carroll County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.01 | $22.20 |
| Crawford County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.01 | $22.20 |
| Page County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.01 | $22.20 |
| Union County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.01 | $22.20 |
| Polk County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.17 | $22.18 |
| Story County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $18.16 | $22.10 |
| Cerro Gordo County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $17.68 | $22.04 |
| Plymouth County group, 19 localities: Buena Vista, Calhoun, Cherokee, Clay, Emmet, Hamilton, Hancock, Humboldt, Ida, Kossuth, Lyon, O'Brien, Osceola, Palo Alto, Plymouth, Pocahontas, Sac, Winnebago, Wright | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $16.35 | $19.23 |
| Dickinson County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $16.35 | $19.23 |
| Sioux County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $16.35 | $19.23 |
| Webster County | INSULATOR: MECHANICAL (DUCT, PIPE AND MECHANICAL SYSTEM INSULATION) | $16.35 | $19.23 |
8 groups of counties with identical DOL rates, and 44 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:
- Clayton: IA20260059 Mod 1
- Delaware: IA20260059 Mod 1
We read every active Iowa 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 Iowa rate as CSV · Report an error