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Where am ILOCATED

Rochelle, IL Micro Area

The Rochelle, IL micro area is one county in Illinois: Ogle County. About 51,399 people lived there on July 1, 2025 (Census estimate), 0.9% fewer than in April 2020.

Ogle County, centralRochelle
Ogle County in Illinois
Population, July 2025
51,399 0.9% fewer than in April 2020
Type
Micropolitan statistical area
County
Ogle County
Land area
759 sq mi (1,965 km²)
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
State
Illinois
Combined statistical area
Rockford-Freeport-Rochelle, IL
CBSA code
40300
Open this area in the metro area finder

The county in the Rochelle, IL micro area

CountyRolePopulation, July 2025
Ogle CountyCentral51,399

A central county holds the area’s core, an urban area of 10,000 to 49,999 people. This area has no outlying counties: no neighboring county sends enough commuters to join it. A county belongs to one metro or micro area at most, and it counts whole, countryside included.

Principal city

  1. Rochelle9,529 people

OMB names the area after its largest principal cities. A principal city is the area’s largest city, plus any other city that is very large or a big job center, and smaller ones with at least as many jobs as working residents (2020 Census and commuting figures). People counts are American Community Survey 2020–2024 5-year estimates.

Part of the Rockford-Freeport-Rochelle, IL combined statistical area

OMB joins neighboring metro and micro areas into a combined statistical area when enough people commute between them. The other 2 areas in this one, largest first:

  1. Rockford, IL Metro Area337,242 people
  2. Freeport, IL Micro Area43,220 people

Bordering metro and micro areas, nearest first

Areas with a county on this area’s edge. Distances are straight lines between the areas’ largest cities.

  1. Dixon, IL Micro Area22 mi west
  2. Rockford, IL Metro Area24 mi north
  3. Sterling, IL Micro Area34 mi west
  4. Freeport, IL Micro Area39 mi northwest
  5. Chicago-Naperville-Elgin, IL-IN Metro Area71 mi east

Before using this answer on a form

A metro or micro area is a statistical area that OMB draws for federal statistics. It is not a city, a local government or a mailing address, and it is not a measure of urban and rural: whole counties count, rural parts included. Programs that use metro areas, such as housing income limits or wage rates, can use their own version of these lists; check the program’s own list for an address.

Find the metro area where you are now, find your county, or see every metro and micro area by population.

See this area on Census.gov ↗