| Year | Population |
|---|---|
| 1980. | 21908 |
| 1990. | 19181 |
| 2000. | 18735 |
| 2010. | 17707 |
www.warrencountyil.com
Illinois
Warren County
County
17187
County seat is in Monmouth
Founded in 1825
Area: 543 square miles
County board has 16 members
FIPS code: 17187
Zipcodes in Warren County: 61478, 61453, 61417, 61447, 61473, 61435, 61462, 61423
Algren Albert
Bresnahan Tim
Cavanaugh Sean
Conard Tina
Edwards Martin
No associations
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Profile ID: LFUS-COU-O-1949