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Where am ILOCATED

Chillicothe, OH Micro Area

The Chillicothe, OH micro area is one county in Ohio: Ross County. About 76,429 people lived there on July 1, 2025 (Census estimate), 0.9% fewer than in April 2020.

Ross County, centralChillicothe
Ross County in Ohio
Population, July 2025
76,429 0.9% fewer than in April 2020
Type
Micropolitan statistical area
County
Ross County
Land area
689 sq mi (1,785 km²)
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
State
Ohio
Combined statistical area
Columbus-Marion-Zanesville, OH
CBSA code
17060
Open this area in the metro area finder

The county in the Chillicothe, OH micro area

CountyRolePopulation, July 2025
Ross CountyCentral76,429

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. Chillicothe21,902 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 Columbus-Marion-Zanesville, OH combined statistical area

OMB joins neighboring metro and micro areas into a combined statistical area when enough people commute between them. The other 8 areas in this one, largest first:

  1. Columbus, OH Metro Area2,242,028 people
  2. Zanesville, OH Micro Area87,014 people
  3. Marion, OH Micro Area65,115 people
  4. Mount Vernon, OH Micro Area64,002 people
  5. Athens, OH Micro Area63,197 people
  6. Bellefontaine, OH Micro Area46,302 people
  7. Cambridge, OH Micro Area38,379 people
  8. Washington Court House, OH Micro Area28,552 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. Washington Court House, OH Micro Area27 mi northwest
  2. Columbus, OH Metro Area45 mi north

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 ↗