County · Indiana

Marshall County, Indiana

Marshall County, Indiana. Marshall County had 46,599 residents in 2025 by the Census Bureau's estimate, up 1.1% since 2020, slower than Indiana (+2.8%). It holds 22 places (6 cities, villages and boroughs, 10 towns and townships and 6 census-designated) and 12 census tracts. GEOID 18099.

Marshall County is the county of the Plymouth, IN micropolitan statistical area (the Census Bureau's July 2023 delineation).

Residents, July 2025 estimate

46,599

Census Bureau estimate (no margin published)
2020 Census count: 46,095 · ACS 2020-2024: 46,284

Median household income

$71,808

±$3,823 (90% margin)
Indiana: $71,957

Median home value

$204,900

±$7,570 (90% margin)
Indiana: $218,200

Median gross rent

$938

±$32 (90% margin)
Indiana: $1,062

How many people live in Marshall County, and is it growing?

The 2020 Census counted 46,095 residents in Marshall County. The Census Bureau estimates 46,599 for July 1, 2025, up 1.1% since 2020, slower than Indiana (+2.8%). The 2020-2024 American Community Survey puts the population at 46,284 over 444 square miles of land.

  • July 2020→2021 +42 (46,106)
  • 2021→2022 +215 (46,321)
  • 2022→2023 −52 (46,269)
  • 2023→2024 +269 (46,538)
  • 2024→2025 +61 (46,599)
Marshall County in Indiana. Boundaries: Census Bureau 2024.
Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
MeasureMarshall CountyIndianaChange since 2015-2019
Total population46,2846,851,073−177
Households17,758±3202,716,009no clear change
Average household size2.57±0.052.46no clear change
Housing units20,111±382,976,568−144

Marshall County's population since 2000

From 45,128 in 2000 to 46,599 in 2025: up 3.3%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.

  • 2000 Census 45,128
  • 2005 (estimate) 46,549
  • 2010 Census 47,051
  • 2015 (estimate) 46,746
  • 2020 Census 46,095
  • 2025 (estimate) 46,599

Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov

What cities and towns are in Marshall County?

Marshall County holds 22 places: 6 cities, villages and boroughs (incorporated places), 10 towns and townships (county subdivisions with their own government) and 6 census-designated places. The largest is Center Township, Marshall County with 16,383 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.

Places in Marshall County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.
Center Township, Marshall Countytownship15,60115,990±31$67,867$175,10011.1%100%
Plymouthcity10,21410,664±41$58,623$131,80013.5%100%
German Township, Marshall Countytownship8,9378,838±26$79,175$234,80015.0%100%
Brementown4,6964,642±17$68,429$211,70025.5%100%
North Township, Marshall Countytownship4,0544,032±25$73,125$167,2009.4%100%
West Townshiptownship3,8493,815±29$88,935$256,0005.6%100%
Walnut Township, Marshall Countytownship2,8732,871±35$62,607$147,30012.7%100%
Bourbon Townshiptownship2,8612,834±19$75,804$174,0007.8%100%
Polk Township, Marshall Countytownship2,7812,476±273$75,827$231,30014.9%100%
Union Township, Marshall Countytownship2,7712,815±22$56,477$258,80023.5%100%
Argostown1,7771,802±270$61,667$129,30019.4%100%
Bourbontown1,6981,760±270$73,510$164,40010.9%100%
Tippecanoe Township, Marshall CountyGEOID 1809975878township1,3221,791±352$61,122$227,9004.5%100%
Culvertown1,1291,392±236$42,857$243,90036.7%100%
Green Township, Marshall CountyGEOID 1809929178township1,046822±253$96,875$210,7001.5%100%
Lake of the WoodsGEOID 1841400CDP–663±271$59,464$254,2006.5%100%
La PazGEOID 1842192town475476±175$77,972$135,30022.1%100%
TippecanoeGEOID 1875860CDP–378±214$52,935$102,2000.0%100%
TynerGEOID 1877030CDP–200±130not published$153,3000.0%100%
Koontz LakeCDP1,6671,182±372$80,538$143,20011.0%7%
DonaldsonGEOID 1818388CDP–62±44$63,229not published0.0%100%
TeegardenGEOID 1875194CDP–35±45not publishednot published0.0%100%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov

Who lives in Marshall County?

The median resident of Marshall County is 39.8 years old; 24.5% are under 18 and 19.0% are 65 or older. The largest group is non-Hispanic white residents at 84.9%, then Hispanic or Latino residents (of any race) at 11.9%. 5.1% of residents were born outside the United States.

Age, origin and education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
MeasureMarshall CountyIndianaChange since 2015-2019
Median age39.8±0.438.1no clear change
Under 18 years24.5%23.3%–
65 years and over19.0%±0.3 pts16.8%–
Hispanic or Latino (any race)11.9%8.6%+1.8 pts
White alone, not Hispanic84.9%±0.2 pts75.4%−2.4 pts
Black or African American alone, not Hispanic0.6%±0.1 pts9.1%no clear change
Asian alone, not Hispanic0.6%±0.1 pts2.6%no clear change
American Indian and Alaska Native alone, not Hispanic0.0%±0.1 pts0.1%–
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±0.1 pts0.0%–
Two or more races, not Hispanic1.8%±0.3 pts3.8%–
Some other race alone, not Hispanic0.1%±0.1 pts0.4%–
Born outside the United States5.1%±0.6 pts6.3%no clear change
Speak a language other than English at home (age 5+)15.3%±1.5 pts10.3%–
Civilian veterans (age 18+)6.2%±0.8 pts6.3%–
With a disability12.9%±1.1 pts14.2%–
No health insurance coverage12.9%±1.8 pts7.4%no clear change
High school graduate or higher (age 25+)85.4%±1.6 pts90.4%–
Bachelor's degree or higher (age 25+)20.9%±1.5 pts29.5%no clear change
Graduate or professional degree (age 25+)7.0%±1.0 pts10.8%–
Moved from another state in the past year1.0%±0.4 pts2.1%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Marshall County earn?

Half of Marshall County's 17,758 households earn less than $71,808 a year (±$3,823), against $71,957 in Indiana. In 2015-2019 the median was $64,806 in 2024 dollars, so it rose by $7,002 after inflation. 11.7% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureMarshall CountyIndianaChange since 2015-2019
Median household income$71,808±$3,823$71,957+$7,002
Mean household income$89,695±$4,074$95,247–
Per capita income$34,462±$1,565$38,351+$2,758
People below the poverty line11.7%±2.0 pts12.3%no clear change
Children under 18 below the poverty line16.6%±4.3 pts16.0%no clear change
Households receiving SNAP6.4%±1.3 pts9.1%–
Households with a broadband subscription84.3%±1.6 pts89.9%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Marshall County?

Owners occupy 76.4% of Marshall County's occupied homes and renters 23.6%. The median owner-occupied home is valued at $204,900 by its owner (±$7,570). The median renter pays $938 a month including utilities, and 26.3% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
MeasureMarshall CountyIndianaChange since 2015-2019
Median home value (owner-occupied)$204,900±$7,570$218,200+$34,203
Median gross rent$938±$32$1,062no clear change
Renters paying 35% or more of income on rent26.3%±5.7 pts38.9%−17.7 pts
Median monthly owner costs, with a mortgage$1,312±$60$1,404–
Owner-occupied homes76.4%±2.4 pts70.6%no clear change
Housing units20,111±382,976,568−144
Homeowner vacancy rate1.1%±0.6 pts0.8%–
Rental vacancy rate2.7%±2.3 pts5.6%–
Single-family detached homes82.1%±1.7 pts72.6%–
Mobile homes6.0%±0.9 pts4.4%–
Built 2020 or later1.3%±0.4 pts1.7%–
Built 1939 or earlier23.0%±2.0 pts16.0%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How many new homes is Marshall County building?

Builders took permits for 118 new housing units across Marshall County in 2025 (116 single-family), 2.5 per 1,000 residents.

  • 2019 73 units
  • 2020 254 units
  • 2021 245 units
  • 2022 275 units
  • 2023 146 units
  • 2024 147 units
  • 2025 118 units

Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey

How do people in Marshall County get to work?

76.8% of Marshall County's workers drive alone and 5.8% work from home. The average trip to work takes 22.3 minutes. The unemployment rate in 2020-2024 averaged 2.6%.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureMarshall CountyIndianaChange since 2015-2019
In the labor force (age 16+)62.9%±1.5 pts63.8%–
Unemployment rate2.6%±0.6 pts4.3%−2.3 pts
Drove alone to work76.8%±2.1 pts76.3%–
Carpooled10.1%±1.7 pts9.1%–
Public transportation0.1%±0.1 pts0.6%–
Walked3.3%±0.8 pts1.9%–
Worked from home5.8%±1.2 pts10.7%+2.4 pts
Mean travel time to work22.3 min±1.024.1 minno clear change

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What are Marshall County's census tracts?

Marshall County is divided into 12 census tracts. Among those with a reliable estimate, median household income runs from $49,832 (Tract 205) to $97,054 (Tract 201.02).

Census tracts of Marshall County, ACS 2020-2024 5-year estimates; sort by any column
Tract 201.0118099020101Bremen (86%)5,4295,282±282$67,155$215,200$93322.4%
Tract 201.0218099020102–3,6023,570±282$97,054$351,200$1,0574.1%
Tract 202.0118099020201La Paz (16%)3,9604,018±35$72,688$166,900$8689.5%
Tract 202.0218099020202Koontz Lake (3%)2,7812,476±273$75,827$231,300$90914.9%
Tract 203.0118099020301Plymouth (2%)3,8493,815±29$88,935$256,000$1,3695.6%
Tract 203.0218099020302Culver (41%)2,7712,815±22$56,477$258,800$66823.5%
Tract 20418099020400Plymouth (80%)3,2103,413±438$63,947$138,700$93610.6%
Tract 20518099020500Plymouth (91%)3,6443,928±458$49,832$120,900$94618.8%
Tract 20618099020600Plymouth (82%)5,1465,339±527$72,756$183,400$1,01011.9%
Tract 207.0118099020701–3,6013,310±401$96,048$251,900$1,0571.8%
Tract 207.0218099020702Bourbon (43%)2,8612,834±19$75,804$174,000$8917.8%
Tract 20818099020800Argos (23%)5,2415,484±279$64,172$166,100$9648.3%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

How does Marshall County compare with Indiana's other counties?

Marshall County's rank among Indiana's counties with a reliable estimate (1 = highest)
MeasureRank
Population32nd of 92
Growth 2020-202547th of 92
Residents per square mile38th of 92
Median household income32nd of 92
Median home value33rd of 92
Median gross rent27th of 92
Poverty rate48th of 92
Bachelor's degree or higher35th of 92
Median age63rd of 92

Every county in Indiana

Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections

Not on this page: crime, weather and schools for Marshall County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.