County · code 17049
Effingham CountyIllinois
Effingham County is a county in Illinois with its seat in Effingham. It was created in 1831 from Crawford and Fayette Counties.
- Founded1831
- County seatEffingham
- Named forThomas Howard, 3rd Earl of Effingham
- Land area479 sq mi + 1.2 sq mi water
- Population34,668 2020 Census
- Parcels mapped23,680 checked 15 October 2026
Where it is
Effingham on the map of Illinois
Illinois has 102 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1831 from Crawford County and Fayette County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Effingham County was created on February 15, 1831, from Crawford and Fayette Counties, but was not fully organized until December 20, 1832, when it was detached from those counties. The county was named after Thomas Howard, 3rd Earl of Effingham.
- 1831Effingham County created Effingham created from Crawford and Fayette; Effingham not fully organized, parts attached to Crawford and Fayette until "organized." · Ill. Laws 1830-1831, pp. 50-52
- 1832
- 1845Changed Legislature authorized Effingham to gain from Shelby the northern half of township 9 north, ranges 4 to 6 east, dependent on local referendum that failed (no change). · Ill. Laws 1844-1845, p. 164
Land and parcels
What the maps cover in Effingham
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 23,680 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 5 June 2026 · checked 15 October 2026 -
Address points Missing
No public address points layer found for Effingham County yet.
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Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Effingham by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
Inside a city or town, permits usually come from that city rather than the county.
Zoning and code
County government
- County government
The official website of Effingham County.
See your own lot on these maps
Open Effingham County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Effingham County
- When was Effingham County founded?
- Effingham County was founded in 1831, formed from Crawford County and Fayette County, and named after Thomas Howard, 3rd Earl of Effingham.
- What is the county seat of Effingham County?
- The county seat of Effingham County is Effingham.
- Is there an online parcel map for Effingham County?
- Yes. A public source publishes a parcel map of 23,680 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Effingham County's boundary or name changed?
- Effingham County was created in 1831 from Crawford County and Fayette County. Since then the Atlas of Historical County Boundaries records 1 later change, chiefly involving Crawford County and Fayette County.
- Is my lot in a flood zone?
- We do not have flood maps for Effingham County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby