Ohio, county by county

Explore all 88 counties across Ohio.

Find county seats, local history, cities and villages, and trusted local businesses in every corner of the Buckeye State, from Lake Erie to the Ohio River.

88Ohio counties

1004Cities and villages

11.9 millionOhio residents

1788Oldest county founded

Most populous

Ohio’s largest counties, at a glance.

The six counties home to the most Ohioans, anchored by Columbus, Cleveland, Cincinnati, Akron, Dayton and Toledo.

Est. 1803Franklin CountyCounty seat: Columbus1,361,536 residents · 25 cities and villages Est. 1807Cuyahoga CountyCounty seat: Cleveland1,232,925 residents · 57 cities and villages Est. 1790Hamilton CountyCounty seat: Cincinnati838,418 residents · 38 cities and villages Est. 1803Montgomery CountyCounty seat: Dayton539,598 residents · 21 cities and villages Est. 1840Summit CountyCounty seat: Akron538,376 residents · 22 cities and villages Est. 1835Lucas CountyCounty seat: Toledo423,347 residents · 11 cities and villages

All 88 counties

Find your county, A to Z.

Choose a county to see its county seat, history, cities and villages, and local business listings.

A

Est. 1797Adams CountyCounty seat: West Union27,865 residents · 6 cities and villages Est. 1820Allen CountyCounty seat: Lima100,881 residents · 9 cities and villages Est. 1846Ashland CountyCounty seat: Ashland52,523 residents · 9 cities and villages Est. 1807Ashtabula CountyCounty seat: Jefferson96,713 residents · 10 cities and villages Est. 1805Athens CountyCounty seat: Athens63,197 residents · 10 cities and villages Est. 1848Auglaize CountyCounty seat: Wapakoneta45,909 residents · 8 cities and villages

B

Est. 1801Belmont CountyCounty seat: St. Clairsville64,434 residents · 16 cities and villages Est. 1818Brown CountyCounty seat: Georgetown44,397 residents · 9 cities and villages Est. 1803Butler CountyCounty seat: Hamilton400,128 residents · 12 cities and villages

C

H

J

Est. 1816Jackson CountyCounty seat: Jackson32,817 residents · 4 cities and villages Est. 1797Jefferson CountyCounty seat: Steubenville63,597 residents · 18 cities and villages

K

Est. 1808Knox CountyCounty seat: Mount Vernon64,002 residents · 8 cities and villages

L

Est. 1840Lake CountyCounty seat: Painesville232,217 residents · 18 cities and villages Est. 1815Lawrence CountyCounty seat: Ironton55,710 residents · 7 cities and villages Est. 1808Licking CountyCounty seat: Newark185,564 residents · 16 cities and villages Est. 1818Logan CountyCounty seat: Bellefontaine46,302 residents · 13 cities and villages Est. 1822Lorain CountyCounty seat: Elyria323,219 residents · 16 cities and villages Est. 1835Lucas CountyCounty seat: Toledo423,347 residents · 11 cities and villages

M

N

Est. 1851Noble CountyCounty seat: Caldwell14,276 residents · 6 cities and villages

O

Est. 1840Ottawa CountyCounty seat: Port Clinton39,481 residents · 8 cities and villages

P

Est. 1820Paulding CountyCounty seat: Paulding18,727 residents · 11 cities and villages Est. 1818Perry CountyCounty seat: New Lexington35,918 residents · 12 cities and villages Est. 1810Pickaway CountyCounty seat: Circleville62,978 residents · 10 cities and villages Est. 1815Pike CountyCounty seat: Waverly27,061 residents · 3 cities and villages Est. 1807Portage CountyCounty seat: Ravenna163,404 residents · 11 cities and villages Est. 1808Preble CountyCounty seat: Eaton40,664 residents · 11 cities and villages Est. 1820Putnam CountyCounty seat: Ottawa34,380 residents · 15 cities and villages

R

Est. 1808Richland CountyCounty seat: Mansfield124,893 residents · 11 cities and villages Est. 1798Ross CountyCounty seat: Chillicothe76,429 residents · 8 cities and villages

S

Est. 1820Sandusky CountyCounty seat: Fremont58,655 residents · 10 cities and villages Est. 1803Scioto CountyCounty seat: Portsmouth71,365 residents · 5 cities and villages Est. 1820Seneca CountyCounty seat: Tiffin54,522 residents · 8 cities and villages Est. 1819Shelby CountyCounty seat: Sidney48,065 residents · 10 cities and villages Est. 1808Stark CountyCounty seat: Canton373,771 residents · 18 cities and villages Est. 1840Summit CountyCounty seat: Akron538,376 residents · 22 cities and villages

T

Est. 1800Trumbull CountyCounty seat: Warren198,972 residents · 12 cities and villages Est. 1808Tuscarawas CountyCounty seat: New Philadelphia92,373 residents · 19 cities and villages

U

Est. 1820Union CountyCounty seat: Marysville73,446 residents · 7 cities and villages

V

Est. 1820Van Wert CountyCounty seat: Van Wert29,013 residents · 10 cities and villages Est. 1850Vinton CountyCounty seat: McArthur12,645 residents · 4 cities and villages

W

Est. 1803Warren CountyCounty seat: Lebanon257,181 residents · 17 cities and villages Est. 1788Washington CountyCounty seat: Marietta58,389 residents · 7 cities and villages Est. 1812Wayne CountyCounty seat: Wooster116,758 residents · 15 cities and villages Est. 1820Williams CountyCounty seat: Bryan36,549 residents · 9 cities and villages Est. 1820Wood CountyCounty seat: Bowling Green134,176 residents · 26 cities and villages Est. 1845Wyandot CountyCounty seat: Upper Sandusky21,567 residents · 8 cities and villages

No counties matched your search. Try a county name or county seat.

Own a business in Ohio?

Add your free listing on FindItOhio.com so customers in your county can find you.

List your business free ↗

Questions and answers

Ohio counties, answered.

How many counties are in Ohio?

Ohio has 88 counties. Each county has its own county seat, where the county courthouse and main government offices are located.

What is the most populous county in Ohio?

Franklin County is the most populous county in Ohio, with about 1,361,536 residents. Its county seat is Columbus.

What is the oldest county in Ohio?

Washington County is the oldest county in Ohio, established in 1788. Its county seat is Marietta.

How do I find local businesses in my Ohio county?

Choose your county on this page to see its county seat, history, cities and villages, then browse the FindItOhio.com directory for verified local businesses and services.

Can I list my business on FindItOhio.com for free?

Yes. Adding a business listing on FindItOhio.com is free. Submit your business name, address, phone number and website for review.

Where can I get fingerprinting or a process server in my county?

Ohio Security & Investigations at (888) 341-6960 and 10-8 Protective Services at (800) 949-8521 provide BCI and FBI fingerprinting, process serving and licensed investigations for residents and employers across Ohio.

Ohio Counties

Explore all 88 counties across Ohio.

Ohio’s largest counties, at a glance.

Find your county, A to Z.

A

B

C

D

E

F

G

H

J

K

L

M

N

O

P

R

S

T

U

V

W

Own a business in Ohio?

Ohio counties, answered.

Ohio Partner Network