Peoria County Map, Illinois

Written and Fact-checked by | Updated On: April 26, 2026 | 14:30 ET

Map of Peoria County - Peoria County is a county located in the U.S. state of Illinois. Peoria County Map showing cities, highways, important places and water bodies. Get Where is Peoria County located in the map, major cities in Peoria county, population, areas, and places of interest.

Peoria County Map, Illinois

Peoria County Map, Illinois

About Peoria County Map, Illinois: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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Peoria County, Illinois

Peoria County is a county located in the U.S. state of Illinois. It's county seat is Peoria. As per 2020 census, the population of Peoria County is 179432 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 618 sq mi (1,601 km2). Peoria County was established on 1825.

Facts about Peoria County, Illinois

CountryUnited States
StateIllinois
RegionCentral Illinois
County SeatPeoria
Named AfterPeoria tribe
Established1825
Organized1825
Coordinates40.79° N, 89.76° W
Total Area~631 sq mi
Land Area~619 sq mi
Water Area~12 sq mi
Population (2020)~181,830
Population RankFourth-most populous county in Illinois
Largest CityPeoria
Main IndustriesManufacturing, Healthcare, Education, Logistics
Major HighwaysInterstate 74, Interstate 474, U.S. Route 24
Time ZoneCentral Time (UTC−06:00)
Known ForCaterpillar headquarters, Illinois River bluffs, medical research
Websitehttps://www.peoriacounty.gov

Ctities in Peoria county

City NameTypePopulation (2020)Pop. DensityArea
BartonvilleVillage5,945738.5/sq mi (285.1/km2)8.05 sq mi (20.85 km2)
BellevueVillage1,878844.4/sq mi (326.0/km2)2.224 sq mi (5.76 km2)
BrimfieldVillage778947.6/sq mi (365.9/km2)0.821 sq mi (2.13 km2)
ChillicotheCity6,1281,161.9/sq mi (448.6/km2)5.274 sq mi (13.66 km2)
DunlapVillage1,603694.5/sq mi (268.2/km2)2.308 sq mi (5.98 km2)
ElmwoodCity2,0581,474.2/sq mi (569.2/km2)1.396 sq mi (3.62 km2)
GlasfordVillage866953.7/sq mi (368.2/km2)0.908 sq mi (2.35 km2)
Hanna CityVillage1,253980.4/sq mi (378.5/km2)1.278 sq mi (3.31 km2)
Kingston MinesVillage266184.2/sq mi (71.1/km2)1.444 sq mi (3.74 km2)
MapletonVillage261294.9/sq mi (113.9/km2)0.885 sq mi (2.29 km2)
NorwoodVillage4371,423.5/sq mi (549.6/km2)0.307 sq mi (0.8 km2)
PeoriaCity113,1502,359.0/sq mi (910.8/km2)47.965 sq mi (124.23 km2)
PrincevilleVillage1,636965.2/sq mi (372.7/km2)1.695 sq mi (4.39 km2)
West PeoriaCity4,2632,024.2/sq mi (781.6/km2)2.106 sq mi (5.45 km2)
Peoria HeightsVillage5,9082,370.8/sq mi (915.4/km2)2.492 sq mi (6.45 km2)

Roads and Highways in Peoria County, Illinois

Peoria County is a major transportation hub in central Illinois with several highways connecting it to regional cities.

  • Interstate 74 – runs east-west through the county, connecting Peoria to Bloomington and Galesburg
  • U.S. Route 24 – runs east-west, linking Peoria to Washington and Lewistown
  • U.S. Route 150 – runs east-west, connecting Peoria to Galesburg and Bloomington
  • Illinois Route 6 – serves as a bypass around Peoria, connecting major highways
  • Illinois Route 29 – runs north-south along the Illinois River, linking Peoria to Chillicothe and Pekin
  • Illinois Route 40 – runs north-south, connecting Peoria to Lacon and Galesburg

Neighboring Counties of Peoria County

  • Marshall County (north)
  • Woodford County (east)
  • Tazewell County (southeast)
  • Fulton County (west)
  • Knox County (northwest)
  • Stark County (north)

Top Attractions in Peoria County, Illinois

Peoria County offers a mix of urban attractions, riverfront views, and cultural experiences centered around the city of Peoria.

  • Peoria Riverfront Museum – Features exhibits on art, science, and history.
  • Wildlife Prairie Park – A large park with native wildlife and outdoor activities.
  • Peoria Zoo – A family-friendly attraction with animals from around the world.
  • Grandview Drive – A scenic road with views of the Illinois River.
  • Forest Park Nature Center – Offers trails and nature programs.
  • Caterpillar Visitors Center – Highlights the history of the global equipment company.
  • Downtown Peoria – Features dining, entertainment, and riverfront attractions.

Distance from Peoria County to Nearby Cities

  • Peoria to Bloomington – 40 mi (64 km)
  • Peoria to Springfield – 75 mi (121 km)
  • Peoria to Chicago – 165 mi (266 km)
  • Peoria to Galesburg – 50 mi (80 km)
  • Peoria to Rockford – 130 mi (209 km)

FAQs about Peoria County

Where is Peoria County located?

Peoria County is located in central Illinois along the Illinois River.

What is Peoria County known for?

The county is known for its riverfront attractions, cultural institutions, and vibrant city of Peoria.

What is the county seat of Peoria County?

Peoria is the county seat and the largest city in Peoria County.

Are there outdoor activities in Peoria County?

Yes, visitors can enjoy parks, trails, riverfront areas, and outdoor recreation throughout the county.

How can I reach Peoria County?

Peoria County is accessible via Interstate 74, U.S. Routes 24 and 150, and several Illinois state highways.