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County · code 17141

Ogle CountyIllinois

Ogle County, Illinois was formed on January 16, 1836, from Jo Daviess County and Non-County Area with its seat in Oregon. The county was named after Joseph Ogle.

  • Founded1836
  • County seatOregon
  • Named forJoseph Ogle
  • Land area759 sq mi + 4.8 sq mi water
  • Population51,788 2020 Census
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Updated

LeeWinnebagoStephensonDeKalbBooneCarrollWhiteside Oregon Census outline · seat marked

Where it is

Ogle on the map of Illinois

Illinois has 102 counties and county equivalents, each with its own records office. Shapes with a page are links.

Adams CountyAlexander CountyBond CountyBoone CountyBrown CountyBureau CountyCalhoun CountyCarroll CountyCass CountyChampaign CountyChristian CountyClark CountyClay CountyClinton CountyColes CountyCook CountyCrawford CountyCumberland CountyDeKalb CountyDe Witt CountyDouglas CountyDuPage CountyEdgar CountyEdwards CountyEffingham CountyFayette CountyFord CountyFranklin CountyFulton CountyGallatin CountyGreene CountyGrundy CountyHamilton CountyHancock CountyHardin CountyHenderson CountyHenry CountyIroquois CountyJackson CountyJasper CountyJefferson CountyJersey CountyJo Daviess CountyJohnson CountyKane CountyKankakee CountyKendall CountyKnox CountyLake CountyLaSalle CountyLawrence CountyLee CountyLivingston CountyLogan CountyMcDonough CountyMcHenry CountyMcLean CountyMacon CountyMacoupin CountyMadison CountyMarion CountyMarshall CountyMason CountyMassac CountyMenard CountyMercer CountyMonroe CountyMontgomery CountyMorgan CountyMoultrie CountyPeoria CountyPerry CountyPiatt CountyPike CountyPope CountyPulaski CountyPutnam CountyRandolph CountyRichland CountyRock Island CountySt. Clair CountySaline CountySangamon CountySchuyler CountyScott CountyShelby CountyStark CountyStephenson CountyTazewell CountyUnion CountyVermilion CountyWabash CountyWarren CountyWashington CountyWayne CountyWhite CountyWhiteside CountyWill CountyWilliamson CountyWinnebago CountyWoodford CountyOgle County Ogle
Counties of Illinois · Ogle highlighted

History

Formed in 1836 from Jo Daviess County and La Salle County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Ogle County was created from Jo Daviess County and non-county area on January 16, 1836, and initially included territory that was later organized into separate counties. Whiteside County was temporarily attached to Ogle for judicial and county purposes in December 1836 but was fully organized and detached by February 1839. Between 1839 and 1841, the county gained territory from Jo Daviess County but lost territory to the creation of Lee County and faced an unsuccessful referendum regarding land to Carroll County.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1836
    Ogle County created Ogle created from Jo Daviess and Non-County Area 8 attached to La Salle.
    from Jo Daviessfrom La Salle
    · Ill. Laws 1835-1836, pp. 273-278
  2. 1836
    Changed Whiteside detached from Jo Daviess, attached to Ogle "for all judicial and county purposes."
    WhitesideJo Daviess
    · History of Ogle, 299-300; Ill. Laws 1835-1836, p. 277
  3. 1839
    Changed Whiteside fully organized, detached from Ogle.
    Whiteside
    · Ill. Laws 1838-1839, pp. 143-144
  4. 1839
    Gained territory Ogle gained from Jo Daviess.
    from Jo Daviess
    · Ill. Laws 1838-1839, pp. 160-162
  5. 1839
    Lost territory Ogle lost to creation of Lee.
    to Lee.
    · Ill. Laws 1838-1839, pp. 170-172
  6. 1841
    Changed Legislature authorized Carroll to gain from Ogle the eastern halves of townships 23 to 25 north, range 7 east, dependent on local referendum that failed (no change).
    Carroll
    · Ill. Laws 1840-1841, p. 90

Land and parcels

What the maps cover in Ogle

Who publishes each layer, how good it is, and when we last checked.

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

Ogle by the Census

Population
51,788 2020 Census count
Housing units
22,632 2020 Census count
Land area
759 square miles
Water area
4.8 square miles
People per sq mi
68 population ÷ land area

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.

Permits

Zoning and code

County government

See your own lot on these maps

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Questions

Common questions about Ogle County

When was Ogle County founded?
Ogle County was founded in 1836, formed from Jo Daviess County and La Salle County, and named after Joseph Ogle.
What is the county seat of Ogle County?
The county seat of Ogle County is Oregon.
Is there an online parcel map for Ogle County?
Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.
Has Ogle County's boundary or name changed?
Ogle County was created in 1836 from Jo Daviess County and La Salle County. Since then the Atlas of Historical County Boundaries records 4 later changes, chiefly involving Jo Daviess County, Whiteside County and Lee. County.
Who issues building permits in Ogle County?
The county's page on building permits: Permits-Licenses. Inside a city or town, ask that city first.
Is my lot in a flood zone?
We do not have flood maps for Ogle County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door