Land Surveying in Sangamon County
Sangamon County sits at the geographic center of Illinois and is home to Springfield, the state capital. The county covers a flat central Illinois prairie landscape bisected by the Sangamon River and bordered by Lake Springfield, a reservoir that serves as Springfield's primary water supply. Communities in the county include Sherman, Rochester, and Chatham, alongside Springfield's urban core.
The landscape here reflects central Illinois prairie history: large agricultural tracts, rural residential acreage, and older Springfield neighborhoods with platted lots dating to the late 1800s and early 1900s. Each of these settings presents different surveying needs and challenges.
What Surveys Are Used For in Sangamon County
Common reasons property owners and developers in Sangamon County hire a licensed land surveyor:
- Residential boundary surveys before installing fences, additions, or outbuildings
- Agricultural land surveys for farm parcel transactions and drainage tile planning
- Lot splits and boundary adjustments for growing suburban developments in Sherman, Chatham, and Rochester
- ALTA/NSPS Land Title Surveys for commercial real estate transactions in Springfield
- Easement location for utility corridors, drainage channels, and private access agreements
- Elevation Certificates for properties near the Sangamon River or Lake Springfield floodplains
- Topographic surveys for development planning on rural acreage
Illinois PLS Licensing Requirements
All Illinois land surveyors are licensed as Professional Land Surveyors (PLS) by the Illinois Department of Financial and Professional Regulation (IDFPR) under the Illinois Professional Land Surveyor Act (225 ILCS 330/). Licensing requires passing the national Fundamentals of Surveying and Professional Surveying exams plus documented field experience under a licensed PLS.
Always verify a current license at idfpr.illinois.gov before hiring. Unlicensed survey work is not legally recognized in Illinois and cannot be used for permits, title insurance, or dispute resolution.
Sangamon County Property Records and GIS
Before calling a surveyor, it is worth gathering what records are available for your property:
- Sangamon County GIS: The county's GIS portal at sangamoncountyil.gov provides parcel boundary maps, property ownership information, and parcel identification numbers. Use this to find your parcel ID and understand your lot's general shape before requesting a survey quote.
- Sangamon County Recorder of Deeds: Recorded plats, deeds, and prior surveys are maintained here. Many older Springfield subdivisions have detailed plat records dating to the early 20th century.
- Illinois GIS Atlas: atlas.illinois.gov provides statewide access to county-level GIS data and is a useful starting point for finding your county's mapping tools.
County GIS maps give you useful context but are not precise enough to rely on for placing a fence or any other decision that depends on exact boundary locations.
Sangamon River and Lake Springfield Flood Considerations
Properties near the Sangamon River and Lake Springfield may fall within FEMA-designated flood zones. The Sangamon River floodplain affects portions of Springfield and nearby rural areas. Lake Springfield's reservoir and associated drainage channels create additional flood exposure in parts of the county.
Property owners in or near these flood zones may need an Elevation Certificate to satisfy flood insurance requirements or to apply for a Letter of Map Amendment (LOMA) if the property has been incorrectly mapped. A licensed PLS can prepare the required elevation documentation. Check your property's flood zone status at msc.fema.gov before assuming you are outside a regulated area.
Agricultural Land Surveying in Sangamon County
A significant portion of Sangamon County is agricultural, and farmland surveys follow different conventions than residential work. Agricultural boundary surveys often involve large parcels described by Public Land Survey System (PLSS) quarter sections, section corners set by the General Land Office in the 19th century, and fence lines that may or may not align with recorded legal descriptions.
Farm parcel transactions, drainage tile installations, and agricultural easements all benefit from licensed survey work that establishes the legal boundary on the ground. Surveyors familiar with central Illinois agricultural records and PLSS corner locations are well positioned for this work.
How to Choose a Surveyor in Sangamon County
- Verify the PLS license at idfpr.illinois.gov before hiring
- Ask whether the firm is familiar with Sangamon County Recorder records and the county's GIS data
- For agricultural or rural parcels, ask about experience with PLSS-based descriptions and large acreage work
- Confirm what is included in the deliverable: a certified survey drawing, corner monuments set or located, and a digital file if you need one for permit applications
- Get at least two quotes
- Check the Illinois Association of Professional Land Surveyors at iapls.org for member directories
Ready to find a licensed surveyor in Sangamon County? Browse the Sangamon County land surveyor directory to find licensed professionals serving Springfield and the surrounding area.