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HVAC and plumbing companies in Humboldt County, IA
How Humboldt County, IA compares with other counties and the U.S. for HVAC and plumbing companies: competitors, household spending, official counts and growth.
Groundwork market score
Not scored
Counties under 10,000 people aren’t scored, since a few businesses can swing their figures.
- Listings
- 0
- None on the map
- Official establishments
- 3
- Businesses with payroll, 2023
- Household spending a year
- $11.1M
- On home repairs, maintenance and insurance · $2,635 a household
- Spending per listing
- n/a
- Listings per 10k households
- 0.0
- Population, 2025
- 9,409
- −2.0% since 2020
See the HVAC and plumbing companies around any address in Humboldt County
The site report maps the HVAC and plumbing companies on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of Humboldt County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
At $2,635 per household (13% below the U.S. average), households in Humboldt County spend about $11.1M a year on home repairs, maintenance and insurance. The spending figure covers all home repairs, maintenance and insurance, not only HVAC and plumbing companies.
Map listings as of September 2026 show no HVAC and plumbing companies in Humboldt County. At the national ratio of HVAC and plumbing companies to household spending, Humboldt County would have about 2, against none on map listings.
The official count of businesses with payroll classed as plumbing, heating and air-conditioning contractors in Humboldt County was 3 in 2023. That is one for every 1,406 households, against one for every 1,162 across the U.S.
Population estimates show Humboldt County declined 2.0% from 2020 to 2025, against +3.1% for the U.S. Counties under 10,000 people aren’t given a market score, since a few businesses can swing their figures.
How Humboldt County compares
The same measures for Iowa and the whole U.S. Spending per listing divides a year of household spending on all home repairs, maintenance and insurance by the HVAC and plumbing companies counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.
| Measure | Humboldt County | Iowa | U.S. |
|---|---|---|---|
| Listings per 10k households | 0.0 | 6.1 | 6.3 |
| Spending per listing | n/a | $4.5M | $4.8M |
| Households per official establishment | 1,406 | 1,187 | 1,162 |
| Official establishment growth, 2019–2023 | n/a | +3.6% | +7.6% |
| Population growth, 2020–2025 | −2.0% | +1.5% | +3.1% |
| Spending per household on home repairs, maintenance and insurance | $2,635 | $2,714 | $3,018 |
| Median household income | $71,946 | $75,059 | $80,734 |
| Groundwork market score | Not scored | 38 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 3
- Employees, 2023
- 8
- Annual payroll, 2023
- $256K
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 0
- Listings at the U.S. rate for this spending
- 2The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 0
- Amount
- $0
SBA-backed loans to businesses classed as plumbing, heating and air-conditioning contractors in Humboldt County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.
Population and households in Humboldt County
- Population, 2025 estimate
- 9,409−2.0% since 2020
- Households
- 4,219
- Median age
- 42.9
- Homes lived in by their owners
- 77%
- Vehicles per household
- 2.1
- Land area
- 434 sq. mi.
- People per square mile
- 22
- Median household income
- $71,946
- Average household income
- $92,749
- Median home value
- $155,800
- Jobs located here
- 3,646
- Daytime population
- 8,805Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Humboldt County?
These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the HVAC and plumbing companies on map listings by name and distance.
Or open the report at the center of Humboldt County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardHVAC and plumbing across Iowa
Every Iowa market ranked →The highest-scoring counties in Iowa for HVAC and plumbing companies, numbered among those based in Iowa, with Humboldt County marked.
Top counties in Iowa
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Dallas County, IA | 91 | 17 | 4.0 | $8.2M | +17.8% | #5 of 1,707 |
| 2Polk County, IA | 73 | 115 | 5.6 | $5.2M | +4.8% | #158 of 1,707 |
| 3Johnson County, IA | 69 | 36 | 5.7 | $4.9M | +4.6% | #241 of 1,707 |
| 4Black Hawk County, IA | 66 | 21 | 3.8 | $6.7M | +0.4% | #287 of 1,707 |
| 5Linn County, IA | 61 | 54 | 5.6 | $5M | +0.7% | #463 of 1,707 |
| 6Bremer County, IA | 58 | 6 | 6.2 | $4.5M | +1.1% | #573 of 1,707 |
| 7Scott County, IA | 58 | 46 | 6.3 | $4.4M | +0.4% | #578 of 1,707 |
| 8Warren County, IA | 58 | 15 | 7.3 | $4.1M | +9.0% | #587 of 1,707 |
| 9Story County, IA | 54 | 21 | 5.4 | $5M | +2.7% | #701 of 1,707 |
| 10Dickinson County, IA | 53 | 5 | 5.7 | $5M | +1.7% | #737 of 1,707 |
| Humboldt County, IA | Not scored | 0 | 0.0 | n/a | −2.0% |
Other business types in Humboldt County
None has a Groundwork market score here. Counties under 10,000 people aren’t scored, since a few businesses can swing their figures.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many HVAC and plumbing companies are in Humboldt County, IA?
There are no HVAC and plumbing companies on map listings in Humboldt County as of September 2026. The listings count heating and air-conditioning companies and plumbers. Official counts show 3 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023.
How much do households in Humboldt County, IA spend on home repairs, maintenance and insurance?
About $11.1M a year, or $2,635 per household. That is 13% below the U.S. average (an index of 87, where 100 is the U.S. average). That spending covers all home repairs, maintenance and insurance, which HVAC and plumbing companies share with other businesses in the trade. It is estimated from the incomes of the 4,219 households in Humboldt County and national spending patterns by income.
How does Humboldt County, IA compare with the U.S. for HVAC and plumbing companies?
Humboldt County has no HVAC and plumbing companies on map listings. At the U.S. ratio of HVAC and plumbing companies to household spending, Humboldt County would have about 2, against none on map listings. There is one business with payroll in the industry for every 1,406 households, against one for every 1,162 across the U.S.
How fast is Humboldt County, IA growing?
Population estimates put Humboldt County at 9,409 people in 2025, down 2.0% since 2020, against +3.1% for the U.S. It has 4,219 households. Median household income in Humboldt County is $71,946, 11% below the U.S. median of $80,734.
What is the Groundwork market score?
The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. The score leaves out counties under 10,000 people, where a handful of businesses would swing it.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Humboldt County. It maps the HVAC and plumbing companies on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.
How the score works · Top markets for HVAC and plumbing companies · All 56 business types in Humboldt County
Screening a site or an acquisition in Humboldt County?
A site report maps the competitors on map listings near an address and sizes the households and spending around it.
The button opens the report at the center of Humboldt County. Signed out, you see a blurred preview; on an account, each report is one action.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are estimates for research only. Not investment or real estate advice.