Grant County, Indiana
Founded in 1831 and named for frontier fighters Moses and Samuel Grant
County Seat: Marion
Largest City: Marion (2025 population: 28,234)
Population per Square Mile: 160.65
Square Miles: 414.10
Go to county's in.gov site
| Population over Time | Number | Rank in State | Percent of State | Indiana |
|---|
| Yesterday (2020) | 66,674 | 25 | 1.0% | 6,484,050 |
| Today (2025) | 66,524 | 26 | 1.0% | 6,973,333 |
| Tomorrow (2030 projection)* | 64,711 | 27 | 0.9% | 7,013,509 |
| Percent Change 2020 to Today | -0.2% | 81 | | 2.8% |
*Projection based on 2020 Census population estimates.
Sources: U.S. Census Bureau; Indiana Business Research Center
| Components of Population Change, 2024-2025 | Number | Rank in State | Percent of State | Indiana |
|---|
| Net Domestic Migration | 443 | 17 | | 12,197 |
| Net International Migration | 104 | 18 | | 17,852 |
| Natural Increase (births minus deaths) | -257 | 88 | -3.0% | 8,561 |
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) | 3,595 | 26 | 5.4% | 5.9% |
| School Age (5 to 17) | 10,601 | 27 | 16.0% | 17.0% |
| College Age (18 to 24) | 8,576 | 18 | 12.9% | 9.7% |
| Young Adult (25 to 44) | 14,532 | 27 | 21.9% | 25.9% |
| Older Adult (45 to 64) | 15,911 | 27 | 23.9% | 23.9% |
| Seniors (65 and older) | 13,243 | 25 | 19.9% | 17.5% |
| Median Age | 39.1 | | | 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 | 325 | 26 | 0.5% | 0.5% |
| Asian Alone | 791 | 26 | 1.2% | 3.1% |
| Black Alone | 5,325 | 19 | 8.0% | 10.6% |
| Native Hawaiian and Other Pac. Isl. Alone | 45 | 31 | 0.1% | 0.1% |
| White | 57,874 | 27 | 87.1% | 83.2% |
| Two or More Race Groups | 2,098 | 21 | 3.2% | 2.5% |
| Non-Hispanic | 62,472 | 27 | 94.0% | 90.9% |
| Hispanic | 3,986 | 24 | 6.0% | 9.1% |
Source: U.S. Census Bureau
| Household Types | Number | Rank in State | Pct Dist.
in County | Pct Dist.
in State |
|---|
| Households in 2024 (Includes detail not shown below) | 26,773 | 26 | 100.0% | 100.0% |
| Married With Children | 3,741 | 30 | 14.0% | 17.9% |
| Married Without Children | 7,408 | 27 | 27.7% | 29.3% |
| Single Parents | 2,884 | 19 | 10.8% | 8.8% |
| Living Alone | 8,694 | 21 | 32.5% | 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 2025 (estimate) | 30,049 | 26 | 100.0% | 100.0% |
| Total Housing Units in 2024 (includes vacant units) | 29,907 | 25 | 100.0% | 100.0% |
Owner Occupied
(Pct. distribution based on all housing units) | 19,470 | 26 | 65.1% | 64.4% |
| Median Value (2024) | $122,300 | 87 | | |
Renter Occupied
(Pct. distribution based on all housing units) | 7,303 | 23 | 24.4% | 26.9% |
| Median Rent (2024) | $633 | 51 | | |
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) | 10,386 | 26 | 0.9% | 1,132,621 |
| Public | 9,861 | 26 | 1.0% | 1,033,552 |
| Adults (25+ in 2024 ACS) | 43,823 | 27 | 1.0% | 4,596,004 |
| with High School diploma or higher | 89.3% | 63 | | 90.4% |
| with B.A. or higher degree | 20.3% | 42 | | 29.5% |
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 2024 | $51,373 | 75 | 80.2% | 64,077 |
| Median Household Income in 2024 | 52,314 | 92 | 72.7% | $71,958 |
| Poverty Rate in 2024 | 17.9% | 4 | 147.9% | 12.1% |
| Poverty Rate among Children under 18 | 23.3% | 4 | 147.5% | 15.8% |
| Welfare (TANF) Monthly Average Families in 2025 | 78 | 15 | 1.6% | 4,863 |
| Food Stamp Recipients in 2025 | 9,424 | 14 | 1.6% | 578,293 |
| Free and Reduced Fee Lunch Recipients in 2024/2025 | 5,607 | 20 | 1.1% | 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 | 751 | 26 | 0.9% | 79,946 |
| Births to Teens, 2021 | 66 | 10 | 1.7% | 3,845 |
| Deaths, 2019 | 885 | 19 | 1.3% | 66,005 |
Source: Indiana State Department of Health
| Labor Force, 2025 | Number | Rank in State | Percent of State | Indiana |
|---|
| Total Resident Labor Force | 31,256 | 26 | 0.9% | 3,506,284 |
| Employed | 29,958 | 26 | 0.9% | 3,377,760 |
| Unemployed | 1,298 | 24 | 1.0% | 128,524 |
| Annual Unemployment Rate | 4.2 | 7 | 113.5% | 3.7 |
| April 2026 Unemployment Rate | 2.9 | 19 | 103.6% | 2.8 |
Source: STATS Indiana, using data from the Indiana Department of Workforce Development
| Employment and Earnings by Industry, 2024 | Employment | Pct Dist.
in County | Earnings ($000) | Pct Dist.
In County | Avg. Earnings Per Job |
|---|
| Total by place of work | 35,623 | 100.0% | $2,100,157 | 100.0% | $58,955 |
| Wage and Salary | 29,612 | 83.1% | $1,553,718 | 74.0% | $52,469 |
| Farm Proprietors | 391 | 1.1% | $13,824 | 0.7% | $35,355 |
| Nonfarm Proprietors | 5,620 | 15.8% | $163,496 | 7.8% | $29,092 |
| Farm | 464 | 1.3% | $19,656 | 0.9% | $42,362 |
| Nonfarm | 35,159 | 98.7% | $2,080,501 | 99.1% | $59,174 |
| Private | 31,242 | 87.7% | $1,765,436 | 84.1% | $56,508 |
| Accommodation, Food Serv. | 2,725 | 7.6% | $70,719 | 3.4% | $25,952 |
| Arts, Ent., Recreation | 347 | 1.0% | $3,296 | 0.2% | $9,499 |
| Construction | 1,226 | 3.4% | $74,205 | 3.5% | $60,526 |
| Health Care, Social Serv. | 4,446 | 12.5% | $340,001 | 16.2% | $76,473 |
| Information | 227 | 0.6% | $13,129 | 0.6% | $57,837 |
| Manufacturing | 4,908 | 13.8% | $443,461 | 21.1% | $90,355 |
| Professional, Tech. Serv. | 970 | 2.7% | $66,287 | 3.2% | $68,337 |
| Retail Trade | 3,548 | 10.0% | $121,965 | 5.8% | $34,376 |
| Trans., Warehousing | 3,155 | 8.9% | $166,472 | 7.9% | $52,765 |
| Wholesale Trade | Data not available due to BEA non-disclosure requirements. |
| Other Private (not above) | 8,913* | 25.0%* | $411,026* | 19.6%* | $46,115* |
| Government | 3,917 | 11.0% | $315,065 | 15.0% | $80,435 |
Source: U.S. Bureau of Economic Analysis
* These totals do not include county data that are not available due to BEA non-disclosure requirements.
| Residential Building Permits, 2025 | Units | Pct Dist.
in County | Pct Dist.
in State | Cost ($000) | State Cost ($000) |
|---|
| Total Permits Filed | 38 | 100.0% | 100.0% | $11,148 | $8,792,236 |
| Single-Family | 36 | 94.7% | 68.4% | $11,028 | $7,272,703 |
| 2-Family | 2 | 5.3% | 1.7% | 120 | $80,213 |
| 3- and 4-Family | 0 | 0.0% | 0.6% | $0 | $31,389 |
| 5+ Family | 0 | 0.0% | 29.3% | $0 | $1,407,931 |
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 Grant County
| Name | Population
in 2025 | Percent of County |
|---|
| Converse | 252 | 0.4%* |
| Fairmount | 2,670 | 4.0% |
| Fowlerton | 271 | 0.4% |
| Gas City | 6,081 | 9.1% |
| Jonesboro | 1,510 | 2.3% |
| Marion | 28,234 | 42.4% |
| Matthews | 484 | 0.7% |
| Swayzee | 904 | 1.4% |
| Sweetser | 1,069 | 1.6% |
| Upland | 3,835 | 5.8% |
| Van Buren | 775 | 1.2% |
| * This place crosses county lines, so only population in this county is shown. |
Source: U.S. Census Bureau annual population estimates
