Home / California / Plumber / Pipefitter / Humboldt County group
California · Plumber / Pipefitter · 2 counties
Plumber / Pipefitter prevailing wage, Humboldt County group, California (2 counties)
DIR sets the same plumber or pipefitter rates, row for row, in 2 counties: Del Norte and Humboldt. Every figure on this page applies in each of them.
$99.23an hour, base wage + fringe benefits · Plumber, Pipefitter
$60.77 base wage + $38.46 fringe benefits
On California public works in each of these 2 counties, a plumber or pipefitter working as plumber, pipefitter must be paid at least $99.23 an hour in total: $60.77 in wages plus $38.46 in employer payments to health, pension, training and other funds. Daily overtime is $129.62 and Sunday and holiday work is $160.00.
DIR general determination 204-290-1, issued August 22, 2025 and still current in DIR's 2026-2 release. Checked against dir.ca.gov on October 24, 2026.
DIR lists 5 plumber or pipefitter rates for each of these counties, from $34.65 to $99.23 an hour. See all of them.
DIR's expiration date for this determination was March 31, 2026. DIR hasn't issued a replacement, so this rate still applies, which is what the single asterisk on DIR's table means. A project keeps the rates in effect on its bid advertisement date for the life of the job.
Base wage and fringe benefits: $60.77 + $38.46
The basic hourly rate is the taxable wage. The other lines, the fringe benefits DIR calls employer payments, are what DIR expects the employer to pay into health, pension and other plans for each hour worked. An employer can pay part of that as extra wages instead, as long as the total per hour stays at $99.23 or more.
| Basic hourly rate (taxable wage) (footnote A) | $60.77 |
| Health and welfare | $18.17 |
| Pension (footnote AQ) | $18.36 |
| Training | $1.65 |
| Other payments | $0.28 |
| Total straight-time hourly rate | $99.23 |
Vacation and holiday is $0.00 in DIR's table. Footnote F says where that money is counted.
Straight time covers an 8-hour day.
When does this rate change?
- A project pays the rates in effect on its bid advertisement date for the life of the job, plus any increase DIR set in advance (DIR FAQ).
- DIR issues new determinations on February 22 and August 22, and they take effect 10 days later. This rate is from determination 204-290-1, issued August 22, 2025.
Rate history since 2024
Total hourly rate for this classification in each DIR release.
| Release | Total | Change |
|---|---|---|
| 2024-2 | $95.63 | |
| 2025-1 | $95.63 | no change |
| 2025-2 | $99.23 | +$3.60 |
| 2026-1 | $99.23 | no change |
| 2026-2 | $99.23 | no change |
Every plumber or pipefitter rate in the Humboldt County group
As DIR lists them. The highlighted row is the one this page leads with.
- Plumber, Pipefitter$99.23
- Fire Sprinkler Fitter (Protection and Control Systems, Overhead and Underground)$85.39
- Underground Utility Pipefitter$54.96
- Underground Utility Assistant Journeyman$40.76
- Underground Utility Tradesman$34.65
| Classification | Base wage | Fringe benefits | Total rate | Daily OT | Determination |
|---|---|---|---|---|---|
| Plumber: Fire Sprinkler Fitter (Protection and Control Systems, Overhead and Underground) | $55.23 | $30.16 | $85.39 | $113.01 | 204-669-1 |
| Plumber, Pipefitter | $60.77 | $38.46 | $99.23 | $129.62 | 204-290-1 |
| Plumber: Underground Utility Assistant Journeyman | $21.81 | $18.95 | $40.76 | $53.04 | 204-355-1 |
| Plumber: Underground Utility Pipefitter | $36.01 | $18.95 | $54.96 | $74.34 | 204-355-1 |
| Plumber: Underground Utility Tradesman | $18.95 | $15.70 | $34.65 | $45.50 | 204-355-1 |
Davis-Bacon plumber or pipefitter rates in these counties
The counties share DIR's rates, but not always the same federal wage determination. When a California awarding body runs a federally funded or assisted project, DIR's rates must be paid where they are higher than the Davis-Bacon rates (DIR public works FAQ).
| County | Federal classification | Base + fringe | WD | vs DIR |
|---|---|---|---|---|
| Del Norte County | PLUMBER AND STEAMFITTER (DEL NORTE & HUMBOLDT COUNTIES) | $25.92 | CA20260005 Mod 2 | DIR +$73.31 |
| Humboldt County | PLUMBER AND STEAMFITTER (DEL NORTE & HUMBOLDT COUNTIES) | $25.92 | CA20260005 Mod 2 | DIR +$73.31 |
How the Humboldt County group compares
The main plumber or pipefitter rate in every county that has one, and how the pay splits here and in the nearest counties. All bars use the same scale.
Every county in California
Base wage and fringe benefits, nearby
- Humboldt County groupbase $60.77$99.23
- Trinity Countybase $53.75$101.11
- Del Norte Countybase $60.77$99.23
- Mendocino Countybase $94.00$149.76
Which county is in which plumber or pipefitter group
Every California county with a plumber or pipefitter rate. Counties DIR treats alike share one page; the rest have their own. You pay the rate for the county where the work is done, even if your shop is somewhere else.
| Counties | Main classification | Base wage | Total rate |
|---|---|---|---|
| Sonoma County group, 2 counties: Marin, Sonoma | Plumber, Steamfitter | $94.00 | $149.76 |
| Lake County | Plumber, Steamfitter | $94.00 | $149.76 |
| Mendocino County | Plumber, Steamfitter | $94.00 | $149.76 |
| San Francisco County | Plumber, Steamfitter, Refrigeration Fitter (HVAC) | $94.00 | $149.76 |
| San Benito County | Plumber, Steamfitter, Refrigeration Fitter (HVAC) | $83.57 | $138.04 |
| Santa Clara County | Plumber, Steamfitter, Refrigeration Fitter (HVAC) | $83.57 | $138.04 |
| Alameda County | Plumber, Pipefitter, Steamfitter | $84.90 | $136.05 |
| San Mateo County | Plumber, Steamfitter | $91.75 | $134.63 |
| Contra Costa County | Plumber, Pipe Fitter & Refrigeration Fitter (HVAC) | $70.67 | $122.56 |
| Solano County group, 2 counties: Napa, Solano | Plumber, Steamfitter, Refrigeration Fitter (HVAC) | $73.85 | $115.37 |
| Monterey County group, 2 counties: Monterey, Santa Cruz | Plumber, Pipe Fitter & Refrigeration Fitter (HVAC) | $58.75 | $106.51 |
| Sacramento County group, 2 counties: Sacramento, Yolo | Plumber, Steamfitter | $70.37 | $101.72 |
| Amador County* | Plumber, Steamfitter | $70.37 | $101.72 |
| El Dorado County* | Plumber, Steamfitter | $70.37 | $101.72 |
| Nevada County* | Plumber, Steamfitter | $70.37 | $101.72 |
| Placer County* | Plumber, Steamfitter | $70.37 | $101.72 |
| Siskiyou County group, 13 counties: Butte, Colusa, Glenn, Lassen, Modoc, Plumas, Shasta, Sierra, Siskiyou, Sutter, Tehama, Trinity, Yuba | Plumber, Steamfitter, Refrigeration Fitter (HVAC) | $53.75 | $101.11 |
| San Joaquin County group, 5 counties: Calaveras, Merced, San Joaquin, Stanislaus, Tuolumne | Plumber, Steamfitter, Refrigeration Fitter (HVAC) | $59.25 | $101.11 |
| Fresno County group, 4 counties: Fresno, Kings, Madera, Tulare | Plumber, Steamfitter, Refrigeration Fitter (HVAC) | $55.50 | $101.11 |
| Alpine County* | Plumber, Steamfitter, Refrigeration Fitter (HVAC) | $59.25 | $101.11 |
| Mariposa County | Plumber, Steamfitter, Refrigeration Fitter (HVAC) | $59.25 | $101.11 |
| Humboldt County group, 2 counties: Del Norte, Humboldt | Plumber, Pipefitter | $60.77 | $99.23 |
| Inyo County group, 2 counties: Inyo, Mono | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
| Imperial County | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
| Kern County | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
| Los Angeles County | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
| Orange County | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
| Riverside County | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
| San Bernardino County | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
| San Diego County | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
| San Luis Obispo County | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
| Santa Barbara County | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
| Ventura County | Plumber, Industrial and General Pipefitter | $64.83 | $94.22 |
9 groups of counties with identical DIR rates, and 24 counties with rates of their own. * County split between areas; its page shows the rate for each part.
California plumber or pipefitter prevailing wage by county, with a map
Footnotes on this rate
DIR's footnotes, in DIR's words. Several change the rate itself: zone pay, a percentage added to the total, or which overtime hours get which rate.
- A Includes amount withheld for dues check off.
- AQ Pursuant to Labor Code sections 1773.1 and 1773.8, the amount paid for this employer payment may vary resulting in a lower taxable basic hourly wage rate, but the total hourly rates for straight time and overtime may not be less than the general prevailing rate of per diem wages.
- F Included in straight-time hourly rate.
- AR Rate applies to the first 4 daily overtime hours and first 10 hours worked on Saturday; all other time is paid at the Sunday and holiday overtime rate.
DIR's other marks: # means an apprenticeable craft, * means in effect until superseded, ** means the next rate is already set.
More from DIR on this rate
- Holidays (DIR PDF)
- Scope of work: which tasks this rate covers
- Travel and subsistence
- Apprentice rates: DIR publishes these separately, by program. Look them up on DIR.
Are you being paid this rate?
Add your hourly wage to what your employer pays into health, pension and other plans for you, and compare it with $99.23. Plan payments only count if the money goes into the plan; your pay stub won't show them, but plan statements will. The training amount goes to the California Apprenticeship Council or an apprenticeship program, not to you. Check a week of pay.
Contractors on most public works jobs file certified payroll with the state, and anyone can look it up in DIR's CPR public search. If your total comes up short, you can file a public works complaint with the California Labor Commissioner.
Source
California Department of Industrial Relations, general prevailing wage determination 204-290-1. DIR prints it in one file per county:
- Del Norte: www.dir.ca.gov/oprl/2026-2/PWD/Determinations/Subtrades/DEL.html
- Humboldt: www.dir.ca.gov/oprl/2026-2/PWD/Determinations/Subtrades/HUM.html
Each figure is copied from DIR's file and checked by a second, separate reader. How we check · How to read a determination · Download every California rate as CSV · Report an error