Looking for a drain field contractor in Denmark, WI? Describe your project once and up to three licensed septic installers who work in Denmark and Brown County get back to you with a quote. It's free and there is no obligation.
Denmark is home to about 2,892 people (2024 Census Bureau estimate), a growing community (+19.7% since 2020). With 1,466 people per sq mi, it is a suburban area. Aging septic systems on rural and suburban lots eventually need new drain fields.
Denmark at a glance
- Population (Census Bureau estimate, 2024)
- 2,892 (+19.7% since 2020)
- Rank in Wisconsin
- 220th of 607 cities and towns
- Land area
- 2.0 sq mi
- Population density
- 1,466 people per sq mi (suburban)
- Type
- Village (Denmark village)
- Main county
- Brown County
What to check before hiring in Denmark
- Permit: in Wisconsin, drain field work is permitted by the state or county health department.
- Soil test: a new soil evaluation may be required to size the field.
- Alternatives: poor soils may call for a mound or an advanced treatment unit.
- Price drivers: soil, system type, lot access and landscaping restoration.
Useful official resources
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EPA: septic systems
Official information and guidance.
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EPA: types of septic systems
Official information and guidance.
Services available in Denmark
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Drain field replacement
Design, permit and installation of a new drain field, conventional or alternative.
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Drain field diagnosis and repair
Diagnosis of a failing field and repairs such as line jetting or distribution box replacement.
Frequently asked questions in Denmark
How much does drain field replacement cost in Denmark, WI?
It depends on the soil, the system type and access. Describe your problem: installers who serve Denmark reply with a quote.
How long does it take?
Design and permit can take weeks; installation often takes a few days.
Can I use my plumbing meanwhile?
Limit water use; the installer may pump the tank to buy time.
Which licensed septic installers will contact me?
Up to three independent licensed septic installers who serve Denmark and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.