FEMA flood zone rules in Sangamon County, IL — also called floodplain regulations or special flood hazard area (SFHA) rules — determine flood insurance requirements and elevation standards for new construction.
Sangamon County participates in the National Flood Insurance Program under FEMA effective Flood Insurance Rate Maps. The Illinois DNR Office of Water Resources administers state floodplain rules under 615 ILCS 5 (Rivers, Lakes, and Streams Act). The Sangamon River creates the primary riverine flood hazard, coordinated regionally by SSCRPC.
Federal flood regulation follows the National Flood Insurance Program (44 CFR Parts 59-72), with effective FIRMs available through the FEMA Map Service Center. The Upper Sangamon River Watershed is the primary flood study area. State authority sits with the Illinois DNR Office of Water Resources under 615 ILCS 5 (Rivers, Lakes, and Streams Act); 615 ILCS 5/18g requires an OWR permit for construction, fill, or modification in regulated floodways and public bodies of water. Sangamon County and each participating municipality - Springfield, Chatham, Rochester, Sherman, Riverton, Leland Grove - adopts a local floodplain ordinance for NFIP eligibility, coordinated by the Springfield and Sangamon County Regional Planning Commission. Substantial improvements (50%+ of pre-improvement value) trigger current floodplain compliance.
Building or filling a regulated floodway without an IDNR-OWR permit violates 615 ILCS 5/18g and the local floodplain ordinance. NFIP non-compliance can suspend community flood insurance under 44 CFR 59. Penalties include daily fines and restoration orders.
Sangamon County, IL
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Sangamon County, IL
In unincorporated Sangamon County, fences are regulated under the Sangamon County Zoning Ordinance, Title 17 (adopted April 22, 1969, as amended), with the s...
Sangamon County, IL
Sangamon County requires all dogs (and cats and companion animals) to be restrained at all times when off the owner's property - either on a leash or under a...
Sangamon County, IL
Illinois bans most consumer fireworks under the Pyrotechnic Use Act (425 ILCS 35). Only sparklers, snake pellets, smoke devices, party poppers, and small cap...
Sangamon County, IL
Unincorporated Sangamon County has no STR-specific parking rule. The 1969 Sangamon County Zoning Ordinance Chapter 17.50 (Off-Street Parking and Loading) set...
Sangamon County, IL
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See how Sangamon County's flood zones rules stack up against other locations.
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