Portage County, Wisconsin
Town of Linwood is a town in Portage County, Wisconsin. Septic permits inside Town of Linwood come from Portage County (Portage County Planning & Zoning Department - On-Site Waste (POWTS) · (715) 346-1334). 12 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Portage County page.
Town of Linwood does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Parcels inside Linwood town (Portage County) that the county zoning maps place in one of the county use districts; county zoning applies there because the town is listed in the ordinance, not because the town adopted its own zoning
“including within the following towns: [...] Linwood [...] are hereby divided into 18 use districts”
Residential buildings erected, moved, or structurally altered in the rural and urban fringe residence district (R1), Section 7.1.2.3, inside Linwood town where the county map places R1
minimum floor area, year-round occupancy: >= 720 square feet · minimum floor area, seasonal occupancy: >= 400 square feet (occupied less than six months in any calendar year)
“the floor area shall not be less than 720 square feet. (b) If occupied or to be occupied for less than six months [...] not be less than 400 square feet.”
“shall have a floor area of not less than 720 square feet.”
Newly created lots in the rural and urban fringe residence district (R1), Section 7.1.2.3, inside Linwood town where the county map places R1
minimum lot area for newly created lots: >= 2 acres (inclusive of road right-of-way per the text as published)
“Minimum lot area in this District for newly created lots shall be two acres”
“Minimum lot area in this District for newly created lots shall be 20,000 square feet”
Structures in the rural and urban fringe residence district (R1), Section 7.1.2.3, inside Linwood town where the county map places R1
minimum side yard setback: >= 25 feet (except lots of record (not less than prior-rezoning side yard setbacks)) · minimum rear yard setback: >= 25 feet
“There shall be a 25 foot minimum setback from each side yard [...] (6) Rear Yard. There shall be a 25 foot minimum setback”
“There shall be a 10 foot minimum setback from each side yard. (6) Rear Yard. There shall be a 25 foot minimum setback”
Buildings in the single family residence district (R2), Section 7.1.2.1, inside Linwood town where the county map places R2
maximum building height: <= 35 feet (except as otherwise provided in this ordinance)
“no building shall exceed a height of 35 feet.”
Private onsite wastewater systems for land inside Linwood town, where the county ordinance applies
“The requirements of this Ordinance shall apply to all geographic areas of Portage County.”
Planned development (PD) districts inside Linwood town only; the sanitary permit is a precondition to zoning permits there
“Submittal of a sanitary permit application, including all necessary materials per Portage County Private Sewage System Ordinance”
New development in the single family residence district (R2) inside Linwood town; district-intent statement about sewer connection, not a general connection mandate
“should be limited to areas where connection to municipal sewage treatment facilities is feasible”
Residential lot creation in the general agricultural district (A4), Section 7.1.3.1, inside Linwood town where the county map places A4
residential lots in a 5-year period triggering committee review: >= 5 lots (within a 5 year period)
“the creation of five or more residential lots within a 5 year period shall be reviewed by the planning and zoning committee.”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Linwood or Portage County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Town of Linwood publishes no rule on the point, not that none exists. Portage County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Linwood means bringing your own water and power. The kit we’d start with:
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