Marshall County, Iowa Facts for Kids

Quick facts for kids Marshall County
U.S. county
The courthouse in Marshalltown is on the NRHP
Location within the U.S. state of Iowa
Iowa's location within the U.S.
Country	United States
State	Iowa
Founded	1846
Named for	John Marshall
Seat	Marshalltown
Largest city	Marshalltown
Area
• Total	573 sq mi (1,480 km²)
• Land	572 sq mi (1,480 km²)
• Water	0.7 sq mi (2 km²) 0.1%
Population (2020)
• Total	40,105
• Density	69.99/sq mi (27.024/km²)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	1st

Marshall County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 40,105. The county seat is Marshalltown. The county was formed on January 13, 1846, and named after John Marshall, Chief Justice of the United States Supreme Court.

Marshall County comprises the Marshalltown, IA Micropolitan Statistical Area.

In 2010, the center of population of Iowa was located in Marshall County, near Melbourne.

In Chapter IX of MacKinlay Kantor's Pulitzer Prize-winning novel "Andersonville" (1955), a teenage boy travels to Marshall County to hand-deliver money to an ailing aunt.

Geography
- Major highways
- Adjacent counties
Demographics
- 2020 census
- 2010 census
Communities
See also

Geography

According to the U.S. Census Bureau, the county has a total area of 573 square miles (1,480 km²), of which 573 square miles (1,480 km²) is land and 0.7 square miles (1.8 km²) (0.1%) is water.

Major highways

U.S. Highway 30
Iowa Highway 14
Iowa Highway 96
Iowa Highway 146
Iowa Highway 330

Adjacent counties

Hardin County (northwest)
Grundy County (northeast)
Tama County (east)
Jasper County (south)
Story County (west)

Demographics

Historical population
Census	Pop.	%±
1850	338	—
1860	6,015	1,679.6%
1870	17,576	192.2%
1880	23,752	35.1%
1890	25,842	8.8%
1900	29,991	16.1%
1910	30,279	1.0%
1920	32,630	7.8%
1930	33,727	3.4%
1940	35,406	5.0%
1950	35,611	0.6%
1960	37,984	6.7%
1970	41,076	8.1%
1980	41,652	1.4%
1990	38,276	−8.1%
2000	39,311	2.7%
2010	40,648	3.4%
2020	40,105	−1.3%
U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2018

Population of Marshall County from US census data

2020 census

The 2020 census recorded a population of 40,105 in the county, with a population density of 70.1835/sq mi (27.0980/km²). 90.76% of the population reported being of one race. 50.96% were non-Hispanic White, 2.03% were Black, 22.79% were Hispanic, 0.82% were Native American, 3.78% were Asian, 0.08% were Native Hawaiian or Pacific Islander and 19.53% were some other race or more than one race. There were 16,745 housing units, of which 15,358 were occupied.

2010 census

The 2010 census recorded a population of 40,648 in the county, with a population density of 71.0232/sq mi (27.4222/km²). There were 16,831 housing units, of which 15,538 were occupied.

Communities

Cities

Census-designated place

Green Mountain

Other unincorporated communities

Townships

Bangor
Eden
Greencastle
Iowa
Jefferson
Le Grand
Liberty
Liscomb
Logan
Marietta
Marion
Marshall
Minerva
State Center
Taylor
Timber Creek
Vienna
Washington

Population ranking

The population ranking of the following table is based on the 2010 census of Marshall County.

† county seat

Rank	City/Town/etc.	Municipal type	Population (2010 Census)
1	† Marshalltown	City	27,552
2	State Center	City	1,468
3	Le Grand (partially in Tama County)	City	938
4	Melbourne	City	830
5	Gilman	City	509
6	Albion	City	505
7	Rhodes	City	305
8	Liscomb	City	301
9	Laurel	City	239
10	Haverhill	City	173
11	Clemons	City	148
t-12	Ferguson	City	126
t-12	Green Mountain	CDP	126
13	St. Anthony	City	102

Marshall County, Iowa facts for kids

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