Knox County, Indiana
Named for Revolutionary War hero General Henry Knox
County Seat: Vincennes
Largest City: Vincennes (2025 population: 16,378)
Population per Square Mile: 69.09
Square Miles: 516.00
Go to county's in.gov site
| Population over Time | Number | Rank in State | Percent of State | Indiana |
|---|
| Yesterday (2020) | 36,282 | 43 | 0.6% | 6,484,050 |
| Today (2025) | 35,652 | 44 | 0.5% | 6,973,333 |
| Tomorrow (2030 projection)* | 35,407 | 44 | 0.5% | 7,013,509 |
| Percent Change 2020 to Today | -1.7% | 90 | | 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 | -56 | 75 | | 12,197 |
| Net International Migration | 37 | 34 | | 17,852 |
| Natural Increase (births minus deaths) | -88 | 71 | -1.0% | 8,561 |
Source: U.S. Census Bureau
| Population Estimates by Age, 2025 | Number | Rank in State | Pct Dist.
in County | Pct Dist.
in State |
|---|
| Preschool (0 to 4) | 1,947 | 47 | 5.5% | 5.8% |
| School Age (5 to 17) | 5,724 | 47 | 16.1% | 16.8% |
| College Age (18 to 24) | 4,231 | 29 | 11.9% | 9.8% |
| Young Adult (25 to 44) | 8,054 | 47 | 22.6% | 25.6% |
| Older Adult (45 to 64) | 8,269 | 47 | 23.2% | 23.5% |
| Seniors (65 and older) | 7,427 | 44 | 20.8% | 18.4% |
| Median Age | 40.0 | | | Median Age = 38.6 |
Sources: U.S. Census Bureau; Indiana Business Research Center
| Population Estimates by Race and Hispanic Origin, 2025 | Number | Rank of | Pct Dist.
in County | Pct Dist.
in State |
|---|
| American Indian or Alaska Native Alone | 148 | 55 | 0.4% | 0.8% |
| Asian Alone | 464 | 33 | 1.3% | 3.2% |
| Black Alone | 1,128 | 32 | 3.2% | 10.6% |
| Native Hawaiian and Other Pac. Isl. Alone | 22 | 41 | 0.1% | 0.1% |
| White | 32,725 | 46 | 91.8% | 81.2% |
| Two or More Race Groups | 1,165 | 41 | 3.3% | 4.2% |
| Non-Hispanic | 34,307 | 43 | 96.2% | 90.4% |
| Hispanic | 1,345 | 48 | 3.8% | 9.6% |
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) | 15,169 | 40 | 100.0% | 100.0% |
| Married With Children | 2,518 | 44 | 16.6% | 17.9% |
| Married Without Children | 4,528 | 46 | 29.9% | 29.3% |
| Single Parents | 1,348 | 37 | 8.9% | 8.8% |
| Living Alone | 4,993 | 32 | 32.9% | 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) | 17,043 | 39 | 100.0% | 100.0% |
| Total Housing Units in 2024 (includes vacant units) | 16,974 | 38 | 100.0% | 100.0% |
Owner Occupied
(Pct. distribution based on all housing units) | 10,285 | 48 | 60.6% | 64.4% |
| Median Value (2024) | $137,700 | 82 | | |
Renter Occupied
(Pct. distribution based on all housing units) | 4,884 | 28 | 28.8% | 26.9% |
| Median Rent (2024) | $564 | 75 | | |
Source: U.S. Census Bureau, American Community Survey 5-year estimates.
| Education | Number | Rank in State | Percent of State | Indiana |
|---|
| School Enrollment (2025/2026 Total Reported) | 5,362 | 46 | 0.5% | 1,112,710 |
| Public | 4,958 | 46 | 0.5% | 1,010,042 |
| Adults (25+ in 2024 ACS) | 24,200 | 44 | 0.5% | 4,596,004 |
| with High School diploma or higher | 89.5% | 59 | | 90.4% |
| with B.A. or higher degree | 19.1% | 55 | | 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 | $59,222 | 31 | 92.4% | 64,077 |
| Median Household Income in 2024 | 61,618 | 80 | 85.6% | $71,958 |
| Poverty Rate in 2024 | 11.9% | 43 | 98.3% | 12.1% |
| Poverty Rate among Children under 18 | 16.1% | 37 | 101.9% | 15.8% |
| Welfare (TANF) Monthly Average Families in 2025 | 29 | 27 | 0.6% | 4,863 |
| Food Stamp Recipients in 2025 | 4,176 | 26 | 0.7% | 578,293 |
| Free and Reduced Fee Lunch Recipients in 2025/2026 | 2,379 | 45 | 0.5% | 476,608 |
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 | 402 | 44 | 0.5% | 79,946 |
| Births to Teens, 2021 | 28 | 29 | 0.7% | 3,845 |
| Deaths, 2019 | 479 | 34 | 0.7% | 66,005 |
Source: Indiana State Department of Health
| Labor Force, 2025 | Number | Rank in State | Percent of State | Indiana |
|---|
| Total Resident Labor Force | 17,832 | 43 | 0.5% | 3,506,284 |
| Employed | 17,213 | 43 | 0.5% | 3,377,760 |
| Unemployed | 619 | 44 | 0.5% | 128,524 |
| Annual Unemployment Rate | 3.5 | 44 | 94.6% | 3.7 |
| May 2026 Unemployment Rate | 3.1 | 1 | 86.1% | 3.6 |
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 | 22,396 | 100.0% | $1,378,232 | 100.0% | $61,539 |
| Wage and Salary | 18,508 | 82.6% | $969,466 | 70.3% | $52,381 |
| Farm Proprietors | 398 | 1.8% | $50,144 | 3.6% | $125,990 |
| Nonfarm Proprietors | 3,490 | 15.6% | $113,249 | 8.2% | $32,450 |
| Farm | 612 | 2.7% | $64,735 | 4.7% | $105,776 |
| Nonfarm | 21,784 | 97.3% | $1,313,497 | 95.3% | $60,296 |
| Private | 16,839 | 75.2% | $1,000,610 | 72.6% | $59,422 |
| Accommodation, Food Serv. | 1,617 | 7.2% | $42,686 | 3.1% | $26,398 |
| Arts, Ent., Recreation | 124 | 0.6% | $1,113 | 0.1% | $8,976 |
| Construction | 1,065 | 4.8% | $74,933 | 5.4% | $70,360 |
| Health Care, Social Serv. | 2,391 | 10.7% | $174,150 | 12.6% | $72,836 |
| Information | 98 | 0.4% | $7,588 | 0.6% | $77,429 |
| Manufacturing | 2,205 | 9.8% | $164,167 | 11.9% | $74,452 |
| Professional, Tech. Serv. | 544 | 2.4% | $40,293 | 2.9% | $74,068 |
| Retail Trade | 2,326 | 10.4% | $76,406 | 5.5% | $32,849 |
| Trans., Warehousing | 663 | 3.0% | $44,257 | 3.2% | $66,753 |
| Wholesale Trade | 686 | 3.1% | $55,692 | 4.0% | $81,184 |
| Other Private (not above) | 5,120 | 22.9% | $319,325 | 23.2% | $62,368 |
| Government | 4,945 | 22.1% | $312,887 | 22.7% | $63,273 |
Source: U.S. Bureau of Economic Analysis
| Residential Building Permits, 2025 | Units | Pct Dist.
in County | Pct Dist.
in State | Cost ($000) | State Cost ($000) |
|---|
| Total Permits Filed | 39 | 100.0% | 100.0% | $12,830 | $8,792,236 |
| Single-Family | 39 | 100.0% | 68.4% | $12,830 | $7,272,703 |
| 2-Family | 0 | 0.0% | 1.7% | 0 | $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 Knox County
| Name | Population
in 2025 | Percent of County |
|---|
| Bicknell | 2,982 | 8.4% |
| Bruceville | 448 | 1.3% |
| Decker | 197 | 0.6% |
| Edwardsport | 276 | 0.8% |
| Monroe City | 487 | 1.4% |
| Oaktown | 576 | 1.6% |
| Sandborn | 359 | 1.0% |
| Vincennes | 16,378 | 45.9% |
| Wheatland | 391 | 1.1% |
Source: U.S. Census Bureau annual population estimates
