Decatur

County in Iowa

County

The population development of Decatur.

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
Decatur	County	8,338	8,689	8,457	7,767	7,656	→
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 Decatur.

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
Davis City	City	Decatur	257	274	207	181	178	→
Decatur	City	Decatur	177	199	197	175	174	→
Garden Grove	City	Decatur	229	250	209	175	173	→
Grand River	City	Decatur	174	205	238	196	192	→
Lamoni	City	Decatur	2,323	2,478	2,335	2,088	2,072	→
Le Roy	City	Decatur	34	13	15	10	10	→
Leon	City	Decatur	2,062	1,980	1,977	1,819	1,779	→
Pleasanton	City	Decatur	58	41	48	32	32	→
Van Wert	City	Decatur	249	225	232	178	175	→
Weldon	City	Decatur	153	143	125	138	134	→

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	3,826
Females	3,819

Age Groups (C 2020)
0-17 years	1,772
18-64 years	4,269
65+ years	1,604

Age Distribution (C 2020)
80+ years	450
70-79 years	654
60-69 years	1,043
50-59 years	884
40-49 years	747
30-39 years	799
20-29 years	960
10-19 years	1,153
0-9 years	955

Urbanization (C 2020)
Rural	7,645

»Race« (C 2020)
White	7,081
Black/African American	108
Indigenous	20
Asian	39
Pacific Islander	24
Some other	101
2 or more	272

Ethnicity (C 2020)
Hispanic or Latino	211
Other	7,434