Buying Land in Greene County, Illinois

Zoning: no ordinance found -- confirm directly before you rely on that

Unlike most of the Illinois counties covered on this site, this research pass found no evidence that Greene County has adopted a county zoning ordinance under 55 ILCS 5 Division 5-12. There's no dedicated zoning department, no zoning board of appeals, and no zoning administrator or officer role among the county's list of elected and appointed offices (County Clerk, Circuit Clerk, Treasurer, State's Attorney, Sheriff, Coroner, and Supervisor of Assessments). That absence is consistent with general reporting that a number of Illinois counties, particularly in the southern and west-central parts of the state, have never adopted county zoning at all.

That said, an absence of search results is not the same as an official confirmation, and this session's web-search budget was exhausted before a definitive statement could be found either way. Before relying on "no zoning" for a specific purchase -- especially anything beyond straightforward single-family or agricultural use -- call the Greene County Clerk's office directly and ask point-blank whether the county has adopted zoning, and if it has not, whether any specific Greene County township has adopted its own zoning ordinance under Article 110 of the Township Code.

Greene County has 13 townships and uses Illinois's standard township form of government rather than the commission form used by 17 of the state's 102 counties. If the county genuinely has no zoning ordinance, Illinois law permits individual townships to adopt their own zoning -- but no evidence of any Greene County township having done so turned up in this research pass. In practice, a lack of both county and township zoning generally means fewer restrictions on what you can build or do with unincorporated land here, but it also means you can't rely on zoning to protect against undesirable neighboring land uses -- worth weighing for anyone buying with specific expectations about what could happen next door.

What still applies even without local zoning

The absence of zoning doesn't mean the absence of every regulation. Illinois's statewide floodplain construction-permit requirements (through IDNR's Office of Water Resources, for work within a mapped floodway) still apply regardless of local zoning status, which is worth checking given Greene County's location along the Illinois River. Septic systems still require a permit from the Greene County Health Department under the statewide IDPH Title 77 Part 905 code. And any recorded subdivision of land would still need to comply with the Illinois Plat Act, administered locally through the Supervisor of Assessments' office. Local building codes, if any, would need to be confirmed separately from zoning.

Septic, GIS, and other departments to know

Septic (private sewage disposal) permitting and inspection in Greene County runs through the Greene County Health Department (310 5th Street, Carrollton; (217) 942-6961), which also handles private water supply testing under the statewide IDPH Title 77 Part 905 code. The Supervisor of Assessments' office (519 North Main Street, Carrollton; (217) 942-6412) handles property assessment, valuation, and GIS/parcel-mapping questions, and the County Clerk & Recorder (same address; (217) 942-5443) handles recorded deeds and plats. University of Illinois Extension serves Greene County jointly with Calhoun, Cass, Morgan, and Scott Counties, with the unit's main office in Virginia, IL ((217) 452-3211) -- relevant to the county's substantial corn-and-soybean agricultural sector.