Looking for a SWPPP consultant in Iroquois, IL? Describe your project once and up to five stormwater consultants who work in Iroquois and Iroquois County get back to you with a quote. It's free and there is no obligation.
Iroquois is home to about 131 people (2024 Census Bureau estimate), a shrinking community (−2.2% since 2020). With 231 people per sq mi, it is a semi-rural area. Subdivisions and commercial sites here need stormwater permit coverage before grading.
Iroquois at a glance
- Population (Census Bureau estimate, 2024)
- 131 (−2.2% since 2020)
- Rank in Illinois
- 1,192nd of 1,294 cities and towns
- Land area
- 0.6 sq mi
- Population density
- 231 people per sq mi (semi-rural)
- Type
- Village (Iroquois village)
- Main county
- Iroquois County
What to check before hiring in Iroquois
- Permit: in Illinois, check the state construction general permit.
- Local rules: Iroquois may add its own erosion control permit.
- Records: keep inspection reports on site.
- Price drivers: site size, phases, inspection frequency and duration.
Useful official resources
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EPA: construction stormwater
Official information and guidance.
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EnviroCert: CPESC
Official information and guidance.
Services available in Iroquois
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SWPPP and permit coverage
Preparation of the SWPPP and notice of intent under the construction general permit.
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Stormwater inspections
Routine and post-storm inspections with reports for the permit.
Frequently asked questions in Iroquois
How much does a SWPPP cost in Iroquois, IL?
It depends on site size, phases and inspections. Describe your project: consultants who serve Iroquois reply with a quote.
How long does it take?
Plans often take days to a couple of weeks, plus the permit review.
What happens at the end?
A notice of termination is filed once the site is stabilized.
Which stormwater consultants will contact me?
Up to five independent stormwater consultants who serve Iroquois 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.