County · Iowa

Marshall County, Iowa

Marshall County, Iowa. Marshall County had 39,890 residents in 2025 by the Census Bureau's estimate, down 0.5% since 2020, while Iowa grew 1.5%. It holds 14 places (13 cities, villages and boroughs and 1 census-designated) and 11 census tracts. GEOID 19127.

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

Residents, July 2025 estimate

39,890

Census Bureau estimate (no margin published)
2020 Census count: 40,105 · ACS 2020-2024: 40,114

Median household income

$73,315

±$3,402 (90% margin)
Iowa: $75,059

Median home value

$145,500

±$6,283 (90% margin)
Iowa: $208,000

Median gross rent

$885

±$55 (90% margin)
Iowa: $972

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

The 2020 Census counted 40,105 residents in Marshall County. The Census Bureau estimates 39,890 for July 1, 2025, down 0.5% since 2020, while Iowa grew 1.5%. The 2020-2024 American Community Survey puts the population at 40,114 over 573 square miles of land.

July 2020→2021 −175 (39,925)
2021→2022 −66 (39,859)
2022→2023 +228 (40,087)
2023→2024 +41 (40,128)
2024→2025 −238 (39,890)

Marshall County in Iowa. Boundaries: Census Bureau 2024.

Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
Measure	Marshall County	Iowa	Change since 2015-2019
Total population	40,114	3,210,507	+150
Households	15,496±282	1,315,707	no clear change
Average household size	2.51±0.05	2.36	no clear change
Housing units	16,937±42	1,437,699	no clear change

Marshall County's population since 2000

From 39,311 in 2000 to 39,890 in 2025: up 1.5%. 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 39,311
2005 (estimate) 39,646
2010 Census 40,648
2015 (estimate) 40,340
2020 Census 40,105
2025 (estimate) 39,890

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 14 places: 13 cities, villages and boroughs (incorporated places) and 1 census-designated place. The largest is Marshalltown with 27,536 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%.

Marshalltown	city	27,591	27,626±28	$69,068	$127,700	14.3%	100%
State Center	city	1,391	1,412±274	$83,942	$167,400	4.9%	100%
Le Grand	city	905	720±150	$76,250	$145,700	5.6%	100%
Melbourne	city	786	804±149	$71,667	$155,400	11.7%	100%
Gilman	city	542	623±139	$101,136	$88,700	8.8%	100%
Albion	city	448	622±262	$91,250	$135,200	10.7%	100%
LiscombGEOID 1945660	city	291	298±124	$84,042	$93,800	4.7%	100%
Rhodes	city	271	265±81	$73,083	$98,000	7.5%	100%
Laurel	city	220	278±61	$61,250	$103,100	8.3%	100%
HaverhillGEOID 1935220	city	165	142±52	$61,607	$115,300	12.8%	100%
ClemonsGEOID 1914160	city	140	108±34	not published	$96,400	0.9%	100%
Green MountainGEOID 1932925	CDP	113	87±40	$36,696	$75,000	13.8%	100%
FergusonGEOID 1927255	city	97	85±34	$52,500	$75,600	11.0%	100%
St. AnthonyGEOID 1969780	city	76	92±43	$58,750	$36,300	23.9%	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 38.5 years old; 25.4% are under 18 and 18.2% are 65 or older. The largest group is non-Hispanic white residents at 66.0%, then Hispanic or Latino residents (of any race) at 24.6%. 14.6% 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.
Measure	Marshall County	Iowa	Change since 2015-2019
Median age	38.5±0.7	38.6	no clear change
Under 18 years	25.4%±0.1 pts	22.9%	–
65 years and over	18.2%±0.3 pts	18.1%	–
Hispanic or Latino (any race)	24.6%	7.3%	+2.7 pts
White alone, not Hispanic	66.0%±0.5 pts	82.3%	−4.9 pts
Black or African American alone, not Hispanic	1.6%±0.5 pts	3.8%	no clear change
Asian alone, not Hispanic	4.1%±0.4 pts	2.5%	no clear change
American Indian and Alaska Native alone, not Hispanic	0.2%±0.1 pts	0.2%	–
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0.0%±0.1 pts	0.2%	–
Two or more races, not Hispanic	3.2%±0.8 pts	3.5%	–
Some other race alone, not Hispanic	0.4%±0.3 pts	0.3%	–
Born outside the United States	14.6%±1.4 pts	5.9%	no clear change
Speak a language other than English at home (age 5+)	24.8%±1.5 pts	9.1%	–
Civilian veterans (age 18+)	8.8%±0.8 pts	6.5%	–
With a disability	13.4%±1.2 pts	12.6%	–
No health insurance coverage	5.8%±1.2 pts	5.0%	no clear change
High school graduate or higher (age 25+)	86.9%±1.3 pts	93.3%	–
Bachelor's degree or higher (age 25+)	22.6%±1.9 pts	31.4%	+3.8 pts
Graduate or professional degree (age 25+)	7.4%±1.2 pts	10.5%	–
Moved from another state in the past year	1.1%±0.4 pts	2.2%	–

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 15,496 households earn less than $73,315 a year (±$3,402), against $75,059 in Iowa. In 2015-2019 it was $69,457 in 2024 dollars; the margins of error cannot tell the two periods apart. 11.2% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure	Marshall County	Iowa	Change since 2015-2019
Median household income	$73,315±$3,402	$75,059	no clear change
Mean household income	$85,510±$3,248	$98,187	–
Per capita income	$33,544±$1,288	$40,877	no clear change
People below the poverty line	11.2%±2.1 pts	11.1%	no clear change
Children under 18 below the poverty line	16.9%±5.3 pts	12.9%	no clear change
Households receiving SNAP	9.2%±1.5 pts	8.8%	–
Households with a broadband subscription	87.6%±1.6 pts	88.9%	–

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 75.0% of Marshall County's occupied homes and renters 25.0%. The median owner-occupied home is valued at $145,500 by its owner (±$6,283). The median renter pays $885 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
Measure	Marshall County	Iowa	Change since 2015-2019
Median home value (owner-occupied)	$145,500±$6,283	$208,000	+$15,046
Median gross rent	$885±$55	$972	no clear change
Renters paying 35% or more of income on rent	26.3%±5.5 pts	35.2%	no clear change
Median monthly owner costs, with a mortgage	$1,332±$42	$1,533	–
Owner-occupied homes	75.0%±2.3 pts	71.7%	+4.5 pts
Housing units	16,937±42	1,437,699	no clear change
Homeowner vacancy rate	1.4%±1.0 pts	0.8%	–
Rental vacancy rate	7.9%±3.2 pts	5.7%	–
Single-family detached homes	79.2%±2.2 pts	72.2%	–
Mobile homes	2.7%±1.0 pts	3.2%	–
Built 2020 or later	1.2%±0.6 pts	1.7%	–
Built 1939 or earlier	31.4%±2.3 pts	23.5%	–

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 33 new housing units across Marshall County in 2025 (23 single-family), 0.8 per 1,000 residents.

2019 41 units
2020 54 units
2021 61 units
2022 103 units
2023 94 units
2024 37 units
2025 33 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?

77.0% of Marshall County's workers drive alone and 7.1% work from home. The average trip to work takes 19.9 minutes. The unemployment rate in 2020-2024 averaged 4.3%.

Work and commuting, ACS 2020-2024 5-year estimates
Measure	Marshall County	Iowa	Change since 2015-2019
In the labor force (age 16+)	66.7%±1.4 pts	66.4%	–
Unemployment rate	4.3%±1.3 pts	3.6%	no clear change
Drove alone to work	77.0%±2.4 pts	76.0%	–
Carpooled	12.4%±2.2 pts	7.8%	–
Public transportation	0.0%±0.1 pts	0.7%	–
Walked	2.9%±1.0 pts	2.9%	–
Worked from home	7.1%±1.2 pts	11.3%	+3.6 pts
Mean travel time to work	19.9 min±1.4	19.8 min	no 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 11 census tracts. Among those with a reliable estimate, median household income runs from $54,152 (Tract 9506) to $90,733 (Tract 9508.02).

Census tracts of Marshall County, ACS 2020-2024 5-year estimates; sort by any column

Tract 950119127950100	Albion (11%)	2,750	2,964±293	$81,304	$184,600	$900	4.1%
Tract 950219127950200	State Center (20%)	2,942	2,817±248	$87,381	$174,700	$798	3.9%
Tract 950319127950300	Melbourne (8%)	3,384	3,290±267	$85,188	$186,100	$990	5.4%
Tract 950419127950400	Le Grand (11%)	3,004	2,875±293	$86,729	$147,400	$786	5.2%
Tract 950519127950500	Marshalltown	3,945	4,121±542	$72,910	$69,900	$917	12.9%
Tract 950619127950600	Marshalltown	4,592	4,248±544	$54,152	$103,800	$713	21.1%
Tract 950719127950700	Marshalltown (89%)	4,309	5,011±584	$76,729	$105,200	$1,223	9.6%
Tract 9508.0119127950801	Marshalltown	3,471	3,326±363	$65,417	$163,400	$934	10.6%
Tract 9508.0219127950802	Marshalltown (76%)	3,586	3,144±336	$90,733	$211,800	$1,049	11.9%
Tract 950919127950900	Marshalltown (93%)	3,393	3,622±577	$58,854	$109,400	$951	25.3%
Tract 951019127951000	Marshalltown (85%)	4,729	4,696±501	$76,414	$185,900	$891	7.3%

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 Iowa's other counties?

Marshall County's rank among Iowa's counties with a reliable estimate (1 = highest)
Measure	Rank
Population	15th of 99
Growth 2020-2025	38th of 99
Residents per square mile	16th of 99
Median household income	37th of 99
Median home value	69th of 99
Median gross rent	24th of 99
Poverty rate	41st of 99
Bachelor's degree or higher	46th of 99
Median age	86th of 99

Every county in Iowa

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.