Peoria County IL United States
| County FIPS | 17143 |
| Largest City | Peoria |
| State | Illinois |
| Latitude | 40.7880 |
| Longitude | -89.7600 |
| Population | 179,645 |
| Density | 290.44 people per square mile |
| Time Zone | America/Chicago |
Median household: $65,108
Median individual: $39,332
Mode: 67.3% White
Median house value: $158,300.0
Median: 38.1 years old
With at least college degree: 34.8%
With STEM degree: 49.9%
Never married: 35.9%
Unemployed: 6.2%
All data comes from the SimpleMaps US Counties Database, 2026.
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