Ogle County, Illinois
Ogle County, Illinois, has 51,399 residents (July 2025 estimate). Its county seat is Oregon. It uses Central Time and covers 759 sq mi (1,965 km²) of land.
- Resident population, July 2025
- 51,399
- Land area
- 759 sq mi (1,965 km²)
- County seat or government
- Oregon
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $82,132 ± $3,131
- Median home value
- $189,200 ± $8,262
- Median rent, with utilities
- $936 ± $37
- Homes lived in by their owners
- 75.4% ± 1.7 points
- County type
- County
- Metro or micro area
- Rochelle, IL micro areaCentral county
- Water area
- 4.78 sq mi (12.4 km²)
- State
- Illinois
- County code (FIPS)
- 17141
- Coordinates (central point)
- 42.041884, -89.320176
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Ogle County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 6110926,768 people
- 6102122,308 people
- 6110215,937 people
- 6106814,788 people
- 610107,497 people
- 610616,766 people
- 610886,167 people
- 610643,757 people
- 610543,610 people
- 610843,201 people
- 610203,149 people
- 601462,369 people
All 27
27 ZIP Code areas overlap Ogle County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
Ogle County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Townships in Ogle County, largest first
- Flagg Township13,287 people
- Byron Township6,410 people
- Oregon-Nashua Township4,769 people
- Marion Township3,884 people
- Mount Morris Township3,669 people
- Scott Township3,305 people
- Buffalo Township2,648 people
- Forreston Township1,907 people
- Rockvale Township1,649 people
- Monroe Township1,335 people
- Leaf River Township1,125 people
- White Rock Township1,028 people
All 24
- Dement Township903 people
- Taylor Township832 people
- Pine Creek Township830 people
- Pine Rock Township696 people
- Lynnville Township655 people
- Woosung Township546 people
- Lincoln Township465 people
- Maryland Township440 people
- Grand Detour Township419 people
- Eagle Point Township273 people
- Lafayette Township264 people
- Brookville Township156 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in Illinois, by county
School districts in Ogle County, largest first
- Dixon Unit School District 17021,741 people
- Rochelle Township High School District 21217,138 people
- Rochelle Community Consolidated District 23113,636 people
- Oregon Community Unit School District 22010,420 people
- Meridian Community Unit School District 2239,110 people
- Byron Community Unit School District 2267,281 people
- Forrestville Valley Community Unit School District 2214,851 people
- Eastland Community Unit School District 3084,377 people
- Polo Community Unit School District 2224,118 people
- Ashton-Franklin Center CUSD 2753,141 people
- Hiawatha Community Unit School District 4262,603 people
- Kings Consolidated School District 1441,102 people
All 14
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Rockford, Illinois (city)147,521 people
- Rochelle, Illinois (city)9,529 people
- Oregon, Illinois (city)3,851 people
- Byron, Illinois (city)3,743 people
- Davis Junction, Illinois (village)2,757 people
- Mount Morris, Illinois (village)2,726 people
- Polo, Illinois (city)2,495 people
- Hillcrest, Illinois (village)1,824 people
- Forreston, Illinois (village)1,360 people
- Stillman Valley, Illinois (village)1,260 people
- Lost Nation, Illinois (CDP)714 people
- Creston, Illinois (village)550 people
All 19
- Leaf River, Illinois (village)477 people
- Monroe Center, Illinois (village)369 people
- Kings, Illinois (CDP)332 people
- Grand Detour, Illinois (CDP)297 people
- Holcomb, Illinois (CDP)152 people
- Baileyville, Illinois (CDP)99 people
- Adeline, Illinois (village)82 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Lee County, Illinois20 mi south
- Winnebago County, Illinois22 mi north
- Stephenson County, Illinois28 mi northwest
- DeKalb County, Illinois30 mi east
- Carroll County, Illinois31 mi west
- Boone County, Illinois32 mi northeast
- Whiteside County, Illinois36 mi southwest
Before using this answer on a form
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