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County · code 39119

Muskingum CountyOhio

Muskingum County is a county in Ohio with its seat in Zanesville, formed in 1804.

  • Founded1804
  • County seatZanesville
  • Land area665 sq mi + 8 sq mi water
  • Population86,410 2020 Census
  • Parcels mapped57,655 checked 16 October 2026
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Updated

CoshoctonMorganPerryGuernseyNobleLicking Zanesville Census outline · seat marked

Where it is

Muskingum on the map of Ohio

Ohio has 88 counties and county equivalents, each with its own records office. Shapes with a page are links.

Adams CountyAllen CountyAshland CountyAshtabula CountyAthens CountyAuglaize CountyBelmont CountyBrown CountyButler CountyCarroll CountyChampaign CountyClark CountyClermont CountyClinton CountyColumbiana CountyCoshocton CountyCrawford CountyCuyahoga CountyDarke CountyDefiance CountyDelaware CountyErie CountyFairfield CountyFayette CountyFranklin CountyFulton CountyGallia CountyGeauga CountyGreene CountyGuernsey CountyHamilton CountyHancock CountyHardin CountyHarrison CountyHenry CountyHighland CountyHocking CountyHolmes CountyHuron CountyJackson CountyJefferson CountyKnox CountyLake CountyLawrence CountyLicking CountyLogan CountyLorain CountyLucas CountyMadison CountyMahoning CountyMarion CountyMedina CountyMeigs CountyMercer CountyMiami CountyMonroe CountyMontgomery CountyMorgan CountyMorrow CountyNoble CountyOttawa CountyPaulding CountyPerry CountyPickaway CountyPike CountyPortage CountyPreble CountyPutnam CountyRichland CountyRoss CountySandusky CountyScioto CountySeneca CountyShelby CountyStark CountySummit CountyTrumbull CountyTuscarawas CountyUnion CountyVan Wert CountyVinton CountyWarren CountyWashington CountyWayne CountyWilliams CountyWood CountyWyandot CountyMuskingum County Muskingum
Counties of Ohio · Muskingum highlighted

History

Formed in 1804 from Fairfield County, Washington County and Columbiana County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Muskingum County was created on March 1, 1804, from Fairfield County, Washington County, and a small part of Columbiana County. From 1804 to 1819, the county lost territory through the creation of six new counties: Tuscarawas in 1808, Coshocton and Guernsey in 1810, Morgan in 1817, and Perry in 1818.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1804
    Muskingum County created Muskingum created from Fairfield, Washington, and a small piece of Columbiana.
    from Fairfieldfrom Washingtonfrom Columbiana
    · Ohio Laws 1803, 2d assy., ch. 6, secs. 1-4/pp. 68-70; Chase, 3:ch. 349/p. 2101
  2. 1808
    Lost territory Muskingum lost to creation of Tuscarawas.
    to Tuscarawas
    · Ohio Laws 1807, 6th assy., ch. 50/p. 163; Chase 3:ch. 368/pp. 2108-2109
  3. 1810
    Lost territory Muskingum lost to creation of Coshocton and Guernsey; Coshocton not fully organized, attached to Muskingum for administrative and judicial purposes.
    to Coshoctonto Guernsey
    · Ohio Laws 1809, 8th assy., ch. 26, secs. 1-2, 4/pp. 81-83 and ch. 20, secs. 1-2, 4/pp. 65-67; Chase, 3:chs. 380-381/pp. 2112-2113
  4. 1811
    Changed Coshocton fully organized, detached from Muskingum.
    Coshocton
    · Ohio Laws 1810, 9th assy., ch. 17/p. 32; Chase, 3:ch. 387/p. 2115
  5. 1817
    Lost territory Muskingum lost to creation of Morgan; Morgan not fully organized, part attached to Muskingum for administrative and judicial purposes.
    to Morgan
    · Ohio Laws 1817, 16th assy., ch. 18/p. 42; Chase, 3:ch. 414/p. 2126
  6. 1818
    Lost territory Muskingum lost to creation of Perry.
    to Perry
    · Ohio Laws 1817, 16th assy., ch. 11, secs. 1, 5/pp. 26, 29; Chase, 3:ch. 411/p. 2124
  7. 1819
    Changed Morgan fully organized, detached from Muskingum.
    Morgan
    · Ohio Laws 1818, 17th assy., ch. 6, secs. 1, 4/pp. 7-9; Chase, 3:ch. 421/pp. 2129-2130

Land and parcels

What the maps cover in Muskingum

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Muskingum by the Census

Population
86,410 2020 Census count
Housing units
38,358 2020 Census count
Land area
665 square miles
Water area
8 square miles
People per sq mi
130 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Muskingum County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

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Questions

Common questions about Muskingum County

When was Muskingum County founded?
Muskingum County was founded in 1804, formed from Fairfield County, Washington County and Columbiana County.
What is the county seat of Muskingum County?
The county seat of Muskingum County is Zanesville.
Is there an online parcel map for Muskingum County?
Yes. A public source publishes a parcel map of 57,655 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Muskingum County's boundary or name changed?
Muskingum County was created in 1804 from Fairfield County, Washington County and Columbiana County. Since then the Atlas of Historical County Boundaries records 6 later changes, chiefly involving Coshocton County, Morgan County and Guernsey County.
Is my lot in a flood zone?
We do not have flood maps for Muskingum County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door