Topic summary
Ottawa micropolitan area, Illinois

Micropolitan Statistical Area in Illinois, United StatesOttawa micropolitan area, IllinoisMicropolitan Statistical AreaLaSalle County Courthouse in OttawaInteractive Map of Ottawa, IL μSA City of Ottawa Ottawa, IL μSA Other Counties in the Chicago, IL–IN–WI CSA Country United StatesState IllinoisPrincipal cityOttawaOther cityStreatorTime zoneUTC−6 (CST) • Summer (DST)UTC−5 (CDT) The Ottawa, Illinois, micropolitan area, as defined by the United States Census Bureau, is an area consisting of three counties in Northern Illinois, anchored by the city of Ottawa. Peru (until 2020) and Streator (until 2013) are former primary cities. As of the 2010 census, the μSA had a population of 154,908. An estimate by the Census Bureau, as of July 1, 2012, placed the population at 153,182, a decrease of 1.11%, but still making it the fourth-largest micropolitan statistical area in the United States. Counties Bureau LaSalle Putnam Communities Places with more than 10,000 inhabitants Ottawa (Principal city) Streator (partial) Places with 5,000 to 10,000 inhabitants LaSalle Mendota Princeton Peru Spring Valley Places with 1,000 to 5,000 inhabitants DePue Earlville Granville Ladd Marseilles