Marshall County, Indiana
Organized in 1836 and named for U.S. Chief Justice John Marshall
County Seat: Plymouth
Largest City: Plymouth (2024 population: 11,042)
Population per Square Mile: 104.74
Square Miles: 443.60
Go to county's in.gov site
| Population over Time | Number | Rank in State | Percent of State | Indiana |
| Yesterday (2020) | 46,095 | 32 | 0.7% | 6,484,050 |
| Today (2024) | 46,464 | 32 | 0.7% | 6,924,275 |
| Tomorrow (2030 projection)* | 46,251 | 32 | 0.7% | 7,013,509 |
| Percent Change 2020 to Today | 0.8% | 59 | | 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 | 100 | 40 | | 4,268 |
| Net International Migration | 70 | 38 | | 30,852 |
| Natural Increase (births minus deaths) | -26 | 35 | -0.3% | 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) | 2,777 | 32 | 6.0% | 5.9% |
| School Age (5 to 17) | 8,293 | 32 | 17.8% | 17.0% |
| College Age (18 to 24) | 4,108 | 30 | 8.8% | 9.7% |
| Young Adult (25 to 44) | 10,709 | 35 | 23.0% | 25.9% |
| Older Adult (45 to 64) | 11,515 | 34 | 24.8% | 23.9% |
| Seniors (65 and older) | 9,062 | 32 | 19.5% | 17.5% |
| Median Age | 40.3 | | | 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 | 253 | 31 | 0.5% | 0.5% |
| Asian Alone | 343 | 36 | 0.7% | 3.1% |
| Black Alone | 485 | 42 | 1.0% | 10.6% |
| Native Hawaiian and Other Pac. Isl. Alone | 51 | 26 | 0.1% | 0.1% |
| White | 44,561 | 31 | 95.9% | 83.2% |
| Two or More Race Groups | 771 | 32 | 1.7% | 2.5% |
| Non-Hispanic | 40,606 | 34 | 87.4% | 90.9% |
| Hispanic | 5,858 | 21 | 12.6% | 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) | 17,377 | 35 | 100.0% | 100.0% |
| Married With Children | 3,579 | 32 | 20.6% | 18.1% |
| Married Without Children | 5,671 | 35 | 32.6% | 29.3% |
| Single Parents | 1,314 | 35 | 7.6% | 8.9% |
| Living Alone | 4,880 | 34 | 28.1% | 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) | 20,518 | 31 | 100.0% | 100.0% |
| Total Housing Units in 2023 (includes vacant units) | 19,959 | 32 | 100.0% | 100.0% |
Owner Occupied (Pct. distribution based on all housing units) | 13,302 | 35 | 66.6% | 63.9% |
| Median Value (2023) | $184,500 | 35 | | |
Renter Occupied (Pct. distribution based on all housing units) | 4,075 | 34 | 20.4% | 26.9% |
| Median Rent (2023) | $711 | 28 | | |
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) | 8,017 | 30 | 0.7% | 1,132,621 |
| Public | 7,661 | 29 | 0.7% | 1,033,552 |
| Adults (25+ in 2023 ACS) | 31,013 | 33 | 0.7% | 4,559,304 |
| with High School diploma or higher | 86.1% | 80 | | 90.2% |
| with B.A. or higher degree | 20.4% | 36 | | 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 | $53,579 | 47 | 87.5% | 61,243 |
| Median Household Income in 2023 | 70,390 | 34 | 101.3% | $69,458 |
| Poverty Rate in 2023 | 10.6% | 55 | 86.9% | 12.2% |
| Poverty Rate among Children under 18 | 12.7% | 60 | 84.1% | 15.1% |
| Welfare (TANF) Monthly Average Families in 2024 | 18 | 39 | 0.4% | 4,813 |
| Food Stamp Recipients in 2024 | 2,812 | 36 | 0.5% | 608,295 |
| Free and Reduced Fee Lunch Recipients in 2024/2025 | 4,034 | 29 | 0.8% | 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 | 553 | 33 | 0.7% | 79,946 |
| Births to Teens, 2021 | 34 | 24 | 0.9% | 3,845 |
| Deaths, 2019 | 449 | 36 | 0.7% | 66,005 |
Source: Indiana State Department of Health
| Labor Force, 2024 | Number | Rank in State | Percent of State | Indiana |
|---|
| Total Resident Labor Force | 22,762 | 31 | 0.7% | 3,455,992 |
| Employed | 21,794 | 31 | 0.7% | 3,310,992 |
| Unemployed | 968 | 30 | 0.7% | 145,000 |
| Annual Unemployment Rate | 4.3 | 25 | 102.4% | 4.2 |
| August 2025 Unemployment Rate | 3.7 | 35 | 97.4% | 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 | 25,258 | 100.0% | $1,445,242 | 100.0% | $57,219 |
| Wage and Salary | 19,277 | 76.3% | $1,022,024 | 70.7% | $53,018 |
| Farm Proprietors | 726 | 2.9% | $58,916 | 4.1% | $81,152 |
| Nonfarm Proprietors | 5,255 | 20.8% | $130,648 | 9.0% | $24,862 |
| Farm | 871 | 3.4% | $67,780 | 4.7% | $77,819 |
| Nonfarm | 24,387 | 96.6% | $1,377,462 | 95.3% | $56,483 |
| Private | 22,187 | 87.8% | $1,241,653 | 85.9% | $55,963 |
| Accommodation, Food Serv. | 1,506 | 6.0% | $39,240 | 2.7% | $26,056 |
| Arts, Ent., Recreation | 247 | 1.0% | $4,076 | 0.3% | $16,502 |
| Construction | 1,164 | 4.6% | $64,621 | 4.5% | $55,516 |
| Health Care, Social Serv. | 1,887 | 7.5% | $110,047 | 7.6% | $58,318 |
| Information | 100 | 0.4% | $5,022 | 0.3% | $50,220 |
| Manufacturing | 7,204 | 28.5% | $550,794 | 38.1% | $76,457 |
| Professional, Tech. Serv. | 754 | 3.0% | $43,563 | 3.0% | $57,776 |
| Retail Trade | 2,592 | 10.3% | $82,398 | 5.7% | $31,789 |
| Trans., Warehousing | Data not available due to BEA non-disclosure requirements. |
| Wholesale Trade | 457 | 1.8% | $52,415 | 3.6% | $114,694 |
| Other Private (not above) | 5,286* | 20.9%* | $241,471* | 16.7%* | $45,681* |
| Government | 2,200 | 8.7% | $135,809 | 9.4% | $61,731 |
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, 2024 | Units | Pct Dist. in County | Pct Dist. in State | Cost ($000) | State Cost ($000) |
|---|
| Total Permits Filed | 147 | 100.0% | 100.0% | $46,737 | $8,133,071 |
| Single-Family | 147 | 100.0% | 75.4% | $46,737 | $6,951,719 |
| 2-Family | 0 | 0.0% | 1.9% | 0 | $100,498 |
| 3- and 4-Family | 0 | 0.0% | 0.8% | $0 | $45,624 |
| 5+ Family | 0 | 0.0% | 21.9% | $0 | $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 Marshall County
| Name | Population in 2024 | Percent of County |
|---|
| Argos | 1,750 | 3.8% |
| Bourbon | 1,671 | 3.6% |
| Bremen | 4,603 | 9.9% |
| Culver | 1,220 | 2.6% |
| La Paz | 463 | 1.0% |
| Plymouth | 11,042 | 23.8% |
Source: U.S. Census Bureau annual population estimates