Hamilton County, Indiana
Organized in 1823 and named for Alexander Hamilton, first secretary of the treasury
County Seat: Noblesville
Largest City: Fishers (2024 population: 103,986)
Population per Square Mile: 962.98
Square Miles: 394.30
Go to county's in.gov site
| Population over Time | Number | Rank in State | Percent of State | Indiana |
|---|
| Yesterday (2020) | 347,467 | 4 | 5.4% | 6,484,050 |
| Today (2024) | 379,704 | 4 | 5.5% | 6,924,275 |
| Tomorrow (2030 projection)* | 417,426 | 3 | 6.0% | 7,013,509 |
| Percent Change 2020 to Today | 9.3% | 2 | | 2.0% |
*Projection based on 2020 Census population estimates.
Sources: U.S. Census Bureau; Indiana Business Research Center
| Components of Population Change, 2023-2024 | Number | Rank in State | Percent of State | Indiana |
|---|
| Net Domestic Migration | 2,841 | 1 | | 4,268 |
| Net International Migration | 2,646 | 3 | | 30,852 |
| Natural Increase (births minus deaths) | 1,603 | 3 | 17.5% | 9,159 |
Source: U.S. Census Bureau
| Population Estimates by Age, 2024 | Number | Rank in State | Pct Dist.
in County | Pct Dist.
in State |
|---|
| Preschool (0 to 4) | 21,393 | 4 | 5.6% | 5.9% |
| School Age (5 to 17) | 71,351 | 4 | 18.8% | 17.0% |
| College Age (18 to 24) | 30,647 | 7 | 8.1% | 9.7% |
| Young Adult (25 to 44) | 102,296 | 4 | 26.9% | 25.9% |
| Older Adult (45 to 64) | 97,417 | 3 | 25.7% | 23.9% |
| Seniors (65 and older) | 56,600 | 4 | 14.9% | 17.5% |
| Median Age | 38.9 | | | Median Age = 38.3 |
Sources: U.S. Census Bureau; Indiana Business Research Center
| Population Estimates by Race and Hispanic Origin, 2024 | Number | Rank of | Pct Dist.
in County | Pct Dist.
in State |
|---|
| American Indian or Alaska Native Alone | 1,075 | 6 | 0.3% | 0.5% |
| Asian Alone | 29,876 | 2 | 7.9% | 3.1% |
| Black Alone | 21,118 | 6 | 5.6% | 10.6% |
| Native Hawaiian and Other Pac. Isl. Alone | 318 | 5 | 0.1% | 0.1% |
| White | 318,079 | 3 | 83.8% | 83.2% |
| Two or More Race Groups | 9,238 | 5 | 2.4% | 2.5% |
| Non-Hispanic | 356,364 | 4 | 93.9% | 90.9% |
| Hispanic | 23,340 | 6 | 6.1% | 9.1% |
Source: U.S. Census Bureau
| Household Types | Number | Rank in State | Pct Dist.
in County | Pct Dist.
in State |
|---|
| Households in 2023 (Includes detail not shown below) | 133,171 | 4 | 100.0% | 100.0% |
| Married With Children | 40,897 | 2 | 30.7% | 18.1% |
| Married Without Children | 43,697 | 3 | 32.8% | 29.3% |
| Single Parents | 8,706 | 5 | 6.5% | 8.9% |
| Living Alone | 28,041 | 5 | 21.1% | 29.6% |
Source: U.S. Census Bureau, American Community Survey 5-year estimates.
| Housing | Number | Rank in State | Pct Dist.
in County | Pct Dist.
in State |
|---|
| Total Housing Units in 2024 (estimate) | 154,448 | 4 | 100.0% | 100.0% |
| Total Housing Units in 2023 (includes vacant units) | 140,389 | 4 | 100.0% | 100.0% |
Owner Occupied
(Pct. distribution based on all housing units) | 101,589 | 4 | 72.4% | 63.9% |
| Median Value (2023) | $379,100 | 1 | | |
Renter Occupied
(Pct. distribution based on all housing units) | 31,582 | 6 | 22.5% | 26.9% |
| Median Rent (2023) | $1,308 | 1 | | |
Source: U.S. Census Bureau, American Community Survey 5-year estimates.
| Education | Number | Rank in State | Percent of State | Indiana |
|---|
| School Enrollment (2024/2025 Total Reported) | 67,555 | 3 | 6.0% | 1,132,621 |
| Public | 63,066 | 3 | 6.1% | 1,033,552 |
| Adults (25+ in 2023 ACS) | 236,653 | 4 | 5.2% | 4,559,304 |
| with High School diploma or higher | 97.3% | 1 | | 90.2% |
| with B.A. or higher degree | 61.8% | 1 | | 28.8% |
Sources: Indiana Department of Education; U.S. Census Bureau, American Community Survey 5-year estimates.
| Income and Poverty | Number | Rank in State | Percent of State | Indiana |
|---|
| Per Capita Personal Income (annual) in 2023 | $99,456 | 1 | 162.4% | 61,243 |
| Median Household Income in 2023 | 121,231 | 1 | 174.5% | $69,458 |
| Poverty Rate in 2023 | 4.8% | 91 | 39.3% | 12.2% |
| Poverty Rate among Children under 18 | 4.5% | 92 | 29.8% | 15.1% |
| Welfare (TANF) Monthly Average Families in 2024 | 47 | 21 | 1.0% | 4,813 |
| Food Stamp Recipients in 2024 | 7,911 | 19 | 1.3% | 608,295 |
| Free and Reduced Fee Lunch Recipients in 2024/2025 | 12,897 | 7 | 2.6% | 488,145 |
Sources: U.S. Bureau of Economic Analysis; U.S. Census Bureau; Indiana Family Social Services Administration; Indiana Department of Education
| Health and Vital Statistics | Number | Rank of | Percent of State | Indiana |
|---|
| Births, 2021 | 4,025 | 4 | 5.0% | 79,946 |
| Births to Teens, 2021 | 50 | 18 | 1.3% | 3,845 |
| Deaths, 2019 | 1,896 | 6 | 2.9% | 66,005 |
Source: Indiana State Department of Health
| Labor Force, 2024 | Number | Rank in State | Percent of State | Indiana |
|---|
| Total Resident Labor Force | 207,699 | 3 | 6.0% | 3,455,992 |
| Employed | 200,792 | 3 | 6.1% | 3,310,992 |
| Unemployed | 6,907 | 4 | 4.8% | 145,000 |
| Annual Unemployment Rate | 3.3 | 88 | 78.6% | 4.2 |
| August 2025 Unemployment Rate | 3.1 | 87 | 81.6% | 3.8 |
Source: STATS Indiana, using data from the Indiana Department of Workforce Development
| Employment and Earnings by Industry, 2023 | Employment | Pct Dist.
in County | Earnings ($000) | Pct Dist.
In County | Avg. Earnings Per Job |
|---|
| Total by place of work | 242,614 | 100.0% | $18,128,089 | 100.0% | $74,720 |
| Wage and Salary | 172,624 | 71.2% | $12,543,996 | 69.2% | $72,667 |
| Farm Proprietors | 446 | 0.2% | $27,911 | 0.2% | $62,581 |
| Nonfarm Proprietors | 69,544 | 28.7% | $3,205,963 | 17.7% | $46,100 |
| Farm | 641 | 0.3% | $36,699 | 0.2% | $57,253 |
| Nonfarm | 241,973 | 99.7% | $18,091,390 | 99.8% | $74,766 |
| Private | 226,139 | 93.2% | $16,854,178 | 93.0% | $74,530 |
| Accommodation, Food Serv. | 17,886 | 7.4% | $651,800 | 3.6% | $36,442 |
| Arts, Ent., Recreation | 6,379 | 2.6% | $163,479 | 0.9% | $25,628 |
| Construction | 12,223 | 5.0% | $1,319,251 | 7.3% | $107,932 |
| Health Care, Social Serv. | 22,996 | 9.5% | $2,031,983 | 11.2% | $88,362 |
| Information | 3,433 | 1.4% | $285,100 | 1.6% | $83,047 |
| Manufacturing | 8,850 | 3.6% | $949,406 | 5.2% | $107,278 |
| Professional, Tech. Serv. | 25,101 | 10.3% | $2,537,951 | 14.0% | $101,110 |
| Retail Trade | 21,836 | 9.0% | $1,053,117 | 5.8% | $48,228 |
| Trans., Warehousing | 7,741 | 3.2% | $206,803 | 1.1% | $26,715 |
| Wholesale Trade | 9,671 | 4.0% | $1,425,372 | 7.9% | $147,386 |
| Other Private (not above) | 90,023 | 37.1% | $6,229,916 | 34.4% | $69,204 |
| Government | 15,834 | 6.5% | $1,237,212 | 6.8% | $78,136 |
Source: U.S. Bureau of Economic Analysis
| Residential Building Permits, 2024 | Units | Pct Dist.
in County | Pct Dist.
in State | Cost ($000) | State Cost ($000) |
|---|
| Total Permits Filed | 4,561 | 100.0% | 100.0% | $1,529,822 | $8,133,071 |
| Single-Family | 2,887 | 63.3% | 75.4% | $1,199,666 | $6,951,719 |
| 2-Family | 102 | 2.2% | 1.9% | 23,930 | $100,498 |
| 3- and 4-Family | 44 | 1.0% | 0.8% | $21,817 | $45,624 |
| 5+ Family | 1,528 | 33.5% | 21.9% | $284,409 | $1,035,231 |
Notes: Detail cost may not sum to total due to rounding. Greene County does not currently issue building permits, so it is excluded.
Source: U.S. Census Bureau
Largest Cities and Towns in Hamilton County
| Name | Population
in 2024 | Percent of County |
|---|
| Arcadia | 1,464 | 0.4% |
| Atlanta | 737 | 0.2% |
| Carmel | 103,606 | 27.3% |
| Cicero | 5,607 | 1.5% |
| Fishers | 103,986 | 27.4% |
| Noblesville | 75,239 | 19.8% |
| Sheridan | 3,487 | 0.9% |
| Westfield | 62,994 | 16.6% |
Source: U.S. Census Bureau annual population estimates
