Marion

County in Iowa

County

The population development of Marion.

Name	Status	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Marion	County	30,001	32,052	33,309	33,417	34,048	→
Iowa	State	2,776,755	2,926,324	3,046,355	3,190,546	3,241,488

Contents: Incorporated Places

The population development of the incorporated places in Marion.

The Details icon links to further information about a selected place including its population structure (gender, age groups, age distribution, urbanization, »race«, ethnicity).

Name	Status	County	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Bussey	City	Marion	501	455	422	381	378	→
Hamilton	City	Marion	115	142	130	121	125	→
Harvey	City	Marion	241	277	235	236	242	→
Knoxville	City	Marion	8,252	7,743	7,312	7,589	7,440	→
Marysville	City	Marion	65	59	66	45	46	→
Melcher-Dallas	City	Marion	1,319	1,296	1,291	1,198	1,193	→
Pella	City	Marion / Mahaska	9,264	9,914	10,340	10,461	10,965	→
Pleasantville	City	Marion	1,541	1,547	1,692	1,680	1,696	→
Swan	City	Marion	76	121	72	76	79	→

Source: U.S. Census Bureau.

Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.

Further information about the population structure:

Gender (C 2020)
Males	16,606
Females	16,808

Age Groups (C 2020)
0-17 years	7,794
18-64 years	19,060
65+ years	6,560

Age Distribution (C 2020)
80+ years	1,769
70-79 years	2,744
60-69 years	4,397
50-59 years	4,366
40-49 years	3,865
30-39 years	3,653
20-29 years	3,765
10-19 years	4,875
0-9 years	3,980

Urbanization (C 2020)
Rural	15,693
Urban	17,721

»Race« (C 2020)
White	31,156
Black/African American	292
Indigenous	69
Asian	401
Pacific Islander	21
Some other	217
2 or more	1,258

Ethnicity (C 2020)
Hispanic or Latino	700
Other	32,714