Iroquois County, Illinois
Iroquois Township is a township in Iroquois County, Illinois. Iroquois Township adopts its own zoning, so inside its limits Iroquois Township’s rules apply, not the county’s. Septic permits inside Iroquois Township come from Iroquois County. 21 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Iroquois County page.
Building, structure, or alteration work subject to the Iroquois County permit process on unincorporated land inside Iroquois township.
unpermitted-construction fine: 1000 USD per day (Beginning construction without a Building Permit.)
“Construction must not be started until permit is issued.”
Construction for which an Iroquois County building permit is sought on unincorporated land inside Iroquois township.
“Iroquois County has adopted the International Building Code, National Electrical Code and State Plumbing Code.”
County building-permit work on unincorporated land inside Iroquois township.
“Building code requires inspections for your permit.”
Occupancy of construction subject to an Iroquois County building permit on unincorporated land inside Iroquois township.
occupancy-without-certificate fine: 50 USD per day (Moving in without Certificate of Completion.)
“There will be a FINE of $50.00 per day for moving in without Certificate of Completion.”
Unincorporated land inside Iroquois township, where the Iroquois County Zoning Ordinance applies; this is a county-administered ordinance, not a township ordinance.
“The jurisdiction of this ordinance shall include all lands and waters within the unincorporated areas of Iroquois County.”
Unincorporated land inside Iroquois township, subject to the county zoning atlas and its mapped district classification.
“Boundaries of these districts are hereby established as shown on the map entitled "Zoning Atlas of Iroquois County, Illinois," and is a part of this ordinance.”
WF-2 Waterfront Residence District on unincorporated land inside Iroquois township, if that district is mapped there.
minimum total ground-floor area: >= 900 square feet (WF-2 Waterfront Residence District.)
“Minimum Total Ground Floor Area: 900 square feet”
Single-family lots on unincorporated land inside Iroquois township where either public water service or public sewerage service is unavailable.
minimum lot area: >= 20000 square feet (Single-family lot where either public water or public sewer is unavailable.) · minimum lot width: >= 100 feet (Single-family lot where either public water or public sewer is unavailable.)
“In any district where either a public water service or public sewerage service is unavailable, the width and area for single-family lots shall be no less than 100 feet and no less than 20,000 square feet, respectively.”
Permitted and conditional uses on unincorporated land inside Iroquois township, by associated thoroughfare classification.
township land-access-road setback: 80 feet from center of road (Land Access thoroughfare classification.) · county collector-road setback: 80 feet from center of road (Major or Minor Collector thoroughfare classification.) · state interstate setback: 100 feet (Interstate thoroughfare classification.)
“Interstate State 100' Major State 100' Area Service State 50' Collector - Major & Minor County 80' from center of road Land Access Township 80' from center of road”
WF-2 Waterfront Residence District on unincorporated land inside Iroquois township, if that district is mapped there.
maximum ground coverage: <= 30 percent (WF-2 Waterfront Residence District.)
“BUILDING: Minimum Total Ground Floor Area: 900 square feet Maximum Ground Coverage: 30% Maximum Height: 35 Feet”
WF-2 Waterfront Residence District on unincorporated land inside Iroquois township, if that district is mapped there.
maximum height: <= 35 feet (WF-2 Waterfront Residence District.)
“BUILDING: Minimum Total Ground Floor Area: 900 square feet Maximum Ground Coverage: 30% Maximum Height: 35 Feet”
Wheeled vehicles designed for sleeping or camping on unincorporated land inside Iroquois township.
maximum travel-trailer duration: <= 180 days (Travel trailers must be moved after this period.)
“However, temporary usage of lots of record, either with or without dwellings may be permitted for wheeled vehicles designed for sleeping or camping by temporary permit from the Zoning Enforcement Officer. Travel Trailers must be moved after one hundred and eighty (180) days.”
Temporary sleeping or camping in wheeled vehicles on unincorporated land inside Iroquois township.
maximum travel-trailer duration: <= 180 days (Travel trailers must be moved after this period.)
“However, temporary usage of lots of record, either with or without dwellings may be permitted for wheeled vehicles designed for sleeping or camping by temporary permit from the Zoning Enforcement Officer. Travel Trailers must be moved after one hundred and eighty (180) days.”
Private sewage systems inside Iroquois township within the jurisdiction of the Iroquois County Public Health Department.
“The goal of this program is to protect every individual in the jurisdiction of the Iroquois County Public Health Department from contraction and transmission of disease by enforcing the Sewage Disposal Ordinance of Iroquois County as well as the Illinois Department of Public Health Private Sewage Disposal Licensing Act and Code.”
Newly constructed or repaired septic systems inside Iroquois township within the Iroquois County Public Health Department jurisdiction.
“Issuance of permits for newly constructed or repaired septic systems”
Newly constructed or repaired septic systems inside Iroquois township within the Iroquois County Public Health Department jurisdiction.
“Inspections of newly constructed or repaired septic systems”
Unincorporated land inside Iroquois township in a district where public sewerage service is unavailable.
minimum single-family lot width: >= 100 feet (Where either public water service or public sewerage service is unavailable.) · minimum single-family lot area: >= 20000 square feet (Where either public water service or public sewerage service is unavailable.)
“In a district where public sewerage service is not available, the width and area of all lots shall be sufficient to permit the use of an on- site sewage disposal system designed in accordance with the local or Illinois State Board of Health standards.”
Newly constructed wells inside Iroquois township within Iroquois County.
“Issuance of permits for newly constructed wells”
Subdivision activity on unincorporated land inside Iroquois township subject to the Iroquois County Subdivision Ordinance.
“No person shall subdivide any tract of land which is located within any unincorporated area of the county that is not in conformity with the provisions of these regulations”
County zoning petitions, use permits, certificates of compliance, variations, and zoning appeals affecting unincorporated land inside Iroquois township.
“Fees pertaining to petitions for zoning amendments, use permits, certificates of compliance, variations, and for appeals to the Board of Zoning Appeals shall be established by action of the County Board from time to time.”
County building/construction/development permit applications for unincorporated land inside Iroquois township.
“REQUIRED DATA ON PLOT PLAN SKETCH A. State if your facility is existing or proposed. B. Lot size, building dimensions and location with all set-backs. C. Indicate North direction. D. Indicate Location of road or roads. E. Indicate well and septic locations.”
We looked and could not find an official answer yet. Silence is not permission; ask Iroquois Township or Iroquois 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 Iroquois Township publishes no rule on the point, not that none exists. Iroquois County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Iroquois Township means bringing your own water and power. The kit we’d start with:
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