Jefferson County, Ohio

Jefferson County: county in Ohio, United States

About

Jefferson County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 69,709 and a population density of 66 people per km². After 10 years in 2020 county had an estimated population of 64,939 inhabitants. Its county seat is Steubenville. The county was created 228 years ago in 1797.

Jefferson County locator map
Location of Jefferson County on Ohio map.

County Snapshot

Jefferson County at a glance

Jefferson County currently has 19 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

19

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Quick Facts about Jefferson County

Population 64,939 (2020)
Country United States of America
State Ohio (United States)
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Plate code 41
Area 1064 km2
Water as percent of area 0.6%
Land as percent of area 99.4%
Latitude & Longitude 40.3850,-80.7610
Named for Thomas Jefferson
Capital Steubenville
Establishment July 27, 1797
Time Zone America/New_York
Local time 12:27:35 (18th April 2026)
Density 61 Pop. per km² as of 2020
Population growth -7.35% (2010-2020)
Weather 81℉ Showers And Thunderstorms 7-days weather
Jefferson County Courthouse in Steubenville image
Jefferson County Courthouse in Steubenville image

Geography

Jefferson County is located at 40°23'6"N 80°45'39"W (40.3850200, -80.7609700). It has 7 neighbors: Belmont County, Carroll County, Columbiana County, Harrison County, Brooke County, Hancock County and Ohio County.

Jefferson County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Jefferson County is Steubenville with a population of 17,586. Other cities include, Toronto population 4,902, Wintersville population 3,645, Mingo Junction population 3,185 and Yellow Creek population 1,995. See all Jefferson County cities & populated places.

Jefferson County Populated Places (more)

Cities, towns, neighborhoods & other populated places in Jefferson County.

City Name Population Title
Steubenville 17,586 City in and county seat of Jefferson County, Ohio, United States
Island Creek 9,832 Township in Jefferson County, Ohio
Toronto 4,902 City in Jefferson County, Ohio, United States
Wintersville 3,645 City in Jefferson County, Ohio, United States of America
Mingo Junction 3,185 Town
Yellow Creek 1,995 Unincorporated community in Ohio, United States
Brilliant 1,482 Census-designated place in Ohio
Tiltonsville 1,274 City in Jefferson County, Ohio, United States of America
Smithfield 786 City in Jefferson County, Ohio, United States of America
Adena 699 Village in Ohio, USA
Bergholz 613 Town
York 475 City in United States of America
Richmond 443 Place in Ohio, United States of America
Rayland 388 Village in Jefferson County, Ohio
Irondale 355 Human settlement in Jefferson County, Ohio, United States of America
Empire 279 Village in Jefferson County, Ohio, United States

Weather

81°F
Showers And Thunderstorms
7 to 15 mph S Saturday

A chance of rain showers between 8am and 11am, then showers and thunderstorms. Partly sunny, with a high near 81. South wind 7 to 15 mph, with gusts a...

7-Day Forecast

Official website of Jefferson County

Official Website
  • Steubenville

Demographics

According to census records, the population of Jefferson County decreased by 7.35% in 10 years.

Year Population % Change Method
2010 69,709 - census
2011 69,035 -0.98% estimation process
2012 68,538 -0.73% estimation process
2013 68,168 -0.54% estimation process
2014 67,876 -0.43% estimation process
2015 67,495 -0.56% estimation process
2016 66,944 -0.82% estimation process
2017 66,318 -0.94% estimation process
2018 65,774 -0.83% estimation process
2019 65,325 -0.69% estimation process
2020 64,939 -0.59% estimation process
Comitatul Jefferson, Comte de Jefferson, Comté de Jefferson, Condado de Jefferson, Condado han Jefferson, Contea di Jefferson, Dzhefersun, Dzhefferson, Hrabstwo Jefferson, Jefferson, Jefferson Comitatus, Jefferson Kun, Jefferson Kūn, Jefferson konderria, Jefferson megye, Jeffersoni maakond, Jeffersonin piirikunta, Okrug DZeferson, Quan Jefferson, Quận Jefferson, jefason jun, jepharasana ka'unti, jie fu xun xian, mqatʿt jfrswn, shhrstan jfrswn awhayw, Джеферсън, Джефферсон, Округ Џеферсон, جیفرسن کاؤنٹی، اوہائیو, شهرستان جفرسون، اوهایو, مقاطعة جفرسون, জেফারশন কাউন্টি, ジェファーソン郡, 傑佛遜縣

People born in Jefferson County (15)

People born in Jefferson County, including politician Thomas W. Bartley, Recipient of the Medal of Honor William Pittenger, politician William B. Francis, .

More notable people

  • Edward N. Kirk (Union Army general) he was born in 29/02/1828
  • Isaiah Pillars (Ohio lawyer, Swedenborgian) he was born in 17/03/1833
  • James S. Alban (Wisconsin State Senate member) he was born in 07/04/1810
  • John C. Brown (American politician) he was born in 13/03/1844
  • John Scott (American politician, businessman, lawyer, and soldier) he was born in 24/04/1824
  • Joseph Cable (American politician) he was born in 17/04/1801
  • Samuel B. Campbell (American politician) he was born in 01/01/1846
  • John H. Hays (Recipient of the Medal of Honor) he was born in 04/08/1844
  • Samuel Grimshaw (Medal of Honor recipient) he was born in 02/03/1840
  • Alexander Watt (American politician) he was born in 26/09/1834
  • Benjamin Dewell (American rancher and Bear Flagger) he was born in 27/10/1821
  • Andy Logan he was born in 17/02/1918

Other places with the same name (24)

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