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Sebastian County, Arkansas

Sebastian County: county in Arkansas, United States

About

Sebastian County is a county located in the U.S. state of Arkansas. As of the 2010 census, the population was 125,744 and a population density of 89 people per km². After 10 years in 2020 county had an estimated population of 127,590 inhabitants. Its county seat is Fort Smith, Greenwood. The county was created 175 years ago in 1851.

Sebastian County locator map
Location of Sebastian County on Arkansas map.

County Snapshot

Sebastian County at a glance

Sebastian County currently has 11 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

11

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

Top linked places

Fort Smith 87,764 Greenwood 8,952 Barling 5,064 Lavaca 2,439

Quick Facts about Sebastian County

Population 127,590 (2020)
Country United States of America
State Arkansas (United States)
Area 1414 km2
Water as percent of area 2.6%
Land as percent of area 97.4%
Latitude & Longitude 35.1993,-94.2739
Altitude 817 feet / 249 meters
Capital Fort Smith, Greenwood
Establishment January 10, 1851
Time Zone America/Chicago
Local time 15:26:02 (22nd April 2026)
Density 90 Pop. per km² as of 2020
Population growth 1.45% (2010-2020)
Weather 79℉ Mostly Sunny 7-days weather
Sebastian County Courthouse-Ft. Smith City Hall Southeast View image
Sebastian County Courthouse-Ft. Smith City Hall Southeast View image

Geography

Sebastian County is located at 35°11'57"N 94°16'26"W (35.1992600, -94.2739100). It has 6 neighbors: Crawford County, Franklin County, Logan County, Scott County, Le Flore County and Sequoyah County.

Sebastian County map

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

The largest city of Sebastian County is Fort Smith with a population of 87,764. Other cities include, Greenwood population 8,952, Barling population 5,064, Lavaca population 2,439 and Mansfield population 1,089. See all Sebastian County cities & populated places.

Sebastian County Populated Places

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

City Name Population Title
Fort Smith 87,764 The second most populous city in Sebastian County, Arkansas.
Greenwood 8,952 City in Sebastian County, Arkansas, United States
Barling 5,064 City in Arkansas, USA
Lavaca 2,439 City in Sebastian County, Arkansas, United States of America
Mansfield 1,089 City in Scott and Sabastian counties in Arkansas, United States
Hackett 837 City in Arkansas, USA
Hartford 623 City in Arkansas, USA
Huntington 615 City in Sebastian County, Arkansas, United States
Bonanza 560 Town in Sebastian County, Arkansas, United States
Central City 497 Town in Arkansas, USA
Midland 322 Town in Arkansas

Weather

79°F
Mostly Sunny
5 to 10 mph S Wednesday

Mostly sunny, with a high near 79. South wind 5 to 10 mph.

7-Day Forecast

Official website of Sebastian County

Official Website
  • Fort Smith

Demographics

The population of Sebastian County increased by 1.45% in 10 years.

Year Population % Change Method
2010 125,744 - census
2011 127,010 1% estimation process
2012 127,571 0.44% estimation process
2013 127,173 -0.31% estimation process
2014 126,733 -0.35% estimation process
2015 127,385 0.51% estimation process
2016 127,385 0% estimation process
2017 127,786 0.31% estimation process
2018 127,570 -0.17% estimation process
2019 127,827 0.2% estimation process
2020 127,590 -0.19% estimation process
Comitatul Sebastian, Comte de Sebastian, Comté de Sebastian, Condado de Sebastian, Condado han Sebastian, Contea di Sebastian, Hrabstwo Sebastian, Okrug Sebashchan, Quan Sebastian, Quận Sebastian, Sebaschun, Sebast'jan, Sebastian, Sebastian Comitatus, Sebastian Kun, Sebastian Kūn, Sebastian konderria, Sebastian megye, Sebastiani srjan, mqatʿt sybastyan, sebasatina ka'unti, sebasuchan jun, shhrstan sbastyn arkanzas, xi ba si qin xian, Округ Себашчан, Себастьян, Себасчън, Սեբաստիանի շրջան, سیبسٹین کاؤنٹی، آرکنساس, سیبیسٹیئن کاؤنٹی, شهرستان سباستین، آرکانزاس, مقاطعة سيباستيان, সেবাসটিন কাউন্টি, セバスチャン郡, 锡巴斯琴县

People born in Sebastian County (4)

People born in Sebastian County, including politician John Sebastian Little, Claimed to be Billy the Kid Brushy Bill Roberts hhhh, politician J. J. McAlester, .

More notable people

  • Marion Parker (American murder victim) she was born in 11/10/1915

Arkansas Other Counties (more counties)

County Name Population Title
Pulaski County 392,980 County in Arkansas, United States
Benton County 288,774 County in Arkansas, United States
Washington County 243,216 County in Arkansas, United States
Little Rock 197,866 The capital of Arkansas.
Faulkner County 126,919 County in Arkansas, United States
Saline County 123,968 County in Arkansas, United States
Craighead County 112,245 County in Arkansas, United States
Garland County 99,789 County in Arkansas, United States
Fayetteville 89,576 The most populous city in Washington County, Arkansas.
Fort Smith 87,764 The second most populous city in Sebastian County, Arkansas.
Springdale 81,115 The most populous city in Washington County, Arkansas.
Jonesboro 79,859 The most populous city in Craighead County, Arkansas.
White County 78,729 County in Arkansas, United States
Lonoke County 73,921 County in Arkansas, United States
Rogers 70,522 The fourth most populous city in Arkansas.
City of Jonesboro 70,187 County seat city in Craighead County, Arkansas, USA

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