Hamilton County, Indiana

Hamilton County: County in Indiana, United States


Hamilton County is a county located in the U.S. state of Indiana. As of the 2010 census, the population was 274,569 and a population density of 263 people per km². After 10 years in 2020 county had an estimated population of 344,238 inhabitants. Its county seat is Noblesville. The county was created 200 years ago in 1822.

Quick Facts about Hamilton County

Population : 344,238 (2020)
Country : United States of America
State : Indiana (United States)
Different from : Hamilton County, Hamilton County, Hamilton County, Hamilton County, Hamilton County, Hamilton County, Hamilton County, Hamilton County, Hamilton County
Area : 1043 km2
Water as percent of area : 2.03%
Land as percent of area : 97.97%
Named for : Alexander Hamilton
Capital : Noblesville
Establishment : January 01, 1823
Time Zone : Eastern Time Zone
Local time : 08:33:35 (2nd June 2023)
Density : 330 Pop. per km² as of 2020
Population growth : 20.24% (2010-2020)
Hamilton County locator map
Location of Hamilton County on Indiana map.
Noblesville-indiana-county-seat image
Noblesville-indiana-county-seat image


Hamilton County is located at 40°4'21"N 86°3'7"W (40.0724900, -86.0520100). It has 5 neighbors: Hancock County, Boone County, Clinton County, Madison County and Tipton County.

Hamilton County map

The largest city of Hamilton County is Carmel with a population of 101,643. Other cities include, Fishers population 97,020, Noblesville population 65,835, Westfield population 46,145 and Sheridan population 3,048. See all Hamilton County cities & populated places.

Hamilton County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Hamilton County.

City Name Population Title
Carmel 101,643 City in Monterey County, California
Fishers 97,020 City in Indiana
Noblesville 65,835 City in Indiana
Westfield 46,145 City in Indiana, USA
Chesterton 14,232 Town in the U.
Cicero 4,999 Town in Indiana, United States
Sheridan 3,048 City in Hamilton County, Indiana, United States of America
Arcadia 1,648 Human settlement in Hamilton County, Indiana, United States of America
Atlanta 783 Town in Hamilton County, Indiana, United States

Hamilton County has 5 neighbours.


The population of Hamilton County increased by 20.24% in 10 years.

Year Population % Change Method
2010 274,569 - census
2011 283,368 3.11% estimation process
2012 289,747 2.2% estimation process
2013 296,858 2.4% estimation process
2014 302,772 1.95% estimation process
2015 308,428 1.83% estimation process
2016 315,902 2.37% estimation process
2017 322,933 2.18% estimation process
2018 330,311 2.23% estimation process
2019 338,011 2.28% estimation process
2020 344,238 1.81% estimation process

Comitatul Hamilton, Comte de Hamilton, Comté de Hamilton, Condado de Hamilton, Condado han Hamilton, Contea di Hamilton, Gamil'ton, Hamilton, Hamilton Kun, Hamilton Kūn, Hamilton konderria, Hamilton megye, Hamilton srjan, Hrabstwo Hamilton, Khamiltun, Okrug Khamilton, Quan Hamilton, Quận Hamilton, hamiruton jun, han mi er dun xian, hyamilatana ka'unti, shhrstan hmyltwn ayndyana, Гамильтон, Гамільтон, Округ Хамилтон, Хамилтън, Համիլտոն շրջան, شهرستان همیلتون، ایندیانا, مقاطعة هاميلتون, ہیملٹن کاؤنٹی، انڈیانا, হ্যামিলটন কাউন্টি, ハミルトン郡, 漢密爾頓縣

People born in Hamilton County (6)

People born in Hamilton County, including politician William J. Knight, architect from the United States Avriel Shull, Indiana State Supreme Court judge Charles E. Cox, .


  • Doc Young (National Football league Founder) he was born in 18/12/1881
  • James Baldwin ((1841-1925) American editor and author) he was born in 15/12/1841
  • James W. Robinson (American mayor) he was born in 01/01/1791

Other places with the same name (10)

Indiana Other Counties (more counties)

County Name Population Title
Marion County 966,183 County in Oregon, United States
Indianapolis 877,903 City in and county seat of Marion County, Indiana, United States and the Indiana federated state capital city
Lake County 487,536 County in Indiana, United States
Allen County 382,187 County in Indiana, United States
Fort Wayne 272,398 County seat of Allen County, Indiana, United States
Saint Joseph County 271,484 County in Indiana, United States
Elkhart County 206,161 County in Indiana, United States
Tippecanoe County 196,115 County in the northwest quadrant of Indiana, United States
Vanderburgh County 182,447 County in Indiana, United States
Hendricks County 173,251 County in Indiana, United States
Porter County 170,980 County in Indiana, United States
Johnson County 160,607 County in Indiana, United States
Monroe County 148,219 County in Indiana, United States
Madison County 129,681 County in Indiana, United States
Clark County 119,266 County in Indiana, United States
Evansville 118,407 County seat of Vanderburgh County, Indiana, United States