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Where am ILOCATED

Richland County, Illinois

Richland County, Illinois, has 15,219 residents (July 2025 estimate). Its county seat is Olney. It uses Central Time and covers 360 sq mi (933 km²) of land.

ChicagoAurora
Richland County in Illinois
OlneyNobleDundasParkersburgCalhoun
Richland County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
15,219
Land area
360 sq mi (933 km²)
County seat or government
Olney
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$62,455 ± $5,569
Median home value
$112,000 ± $7,458
Median rent, with utilities
$805 ± $43
Homes lived in by their owners
73.8% ± 2.5 points
County type
County
Metro or micro area
Outside any metro or micro area
Water area
1.87 sq mi (4.84 km²)
State
Illinois
County code (FIPS)
17159
Coordinates (central point)
38.712187, -88.085452
Open this point in the location finder

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 Richland County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-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

  1. 6245012,327 people
  2. 624485,356 people
  3. 624664,001 people
  4. 628681,463 people
  5. 624761,222 people
  6. 62425838 people
  7. 62452387 people
  8. 62421366 people
  9. 62419352 people

9 ZIP Code areas overlap Richland 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

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Richland County, largest first

  1. Olney Township9,847 people
  2. Preston Township1,601 people
  3. Noble Township1,208 people
  4. Madison Township883 people
  5. Claremont Township813 people
  6. Bonpas Township354 people
  7. Denver Township343 people
  8. Decker Township278 people
  9. German Township271 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Illinois, by county

School districts in Richland County, largest first

  1. Richland County Community Unit School District 115,590 people
  2. Jasper County Community Unit School District 18,928 people
  3. Edwards County Community Unit School District 15,474 people
  4. Clay City Community Unit District 101,937 people

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.

  1. Olney, Illinois (city)8,577 people
  2. Noble, Illinois (village)649 people
  3. Dundas, Illinois (CDP)272 people
  4. Parkersburg, Illinois (village)237 people
  5. Calhoun, Illinois (village)227 people
  6. Claremont, Illinois (village)195 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Lawrence County, Illinois19 mi east
  2. Edwards County, Illinois20 mi south
  3. Jasper County, Illinois21 mi north
  4. Clay County, Illinois22 mi west
  5. Wabash County, Illinois23 mi southeast
  6. Crawford County, Illinois27 mi northeast
  7. Wayne County, Illinois27 mi southwest

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.