CensusEasy
COUNTY · 1990 CENSUS

Decatur County

Iowa · 8,338 residents · 531.883 sq mi
Time machine
COMPARE TO
Compare
The short version

Decatur County has notably lower household income than the US average, with a median household income of $18,105. Population has declined 4% since 2000. 12% of adults hold a bachelor's degree or higher, below the national rate of 20%. Median home value is $22,800. Households here earn about 31% less than the Iowa median.

At a glance
Lower income
below the US median
US median: $30,130
Older
median age 35.4
US median: 33.0
Less educated
12% hold a bachelor's degree
US average: 20%
More affordable
home values down 42%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

8,338
−4%vs 2000
vs 8,689 in 2000
1990 – 2025
16 / sq mi
−4%vs 2000
vs 16 / sq mi in 2000
US average: 221
35.4
−3%vs 2000
vs 36.4 in 2000
US average: 33.0
Population, 19902024
8K8K8K8K9K1990201020202024Decatur County
20248K
1990201020202024
Section 02

Income & economy

$18,105
−13%inflation adjusted, since 2000
vs $27,343 in 2000
US average: $30,130
1990 – 2024
$8,918
−37%vs 2000
vs $14,209 in 2000
US average: $14,340
21.0%
+5.5 ptsvs 2000
vs 15.5% in 2000
US average: 13.2%
Section 03

Housing

$22,800
−42%inflation adjusted, since 2000
vs $51,900 in 2000
US average: $93,722
1990 – 2024
$220
−15%inflation adjusted, since 2000
vs $340 in 2000
US average: $450
70.8%
−0.2 ptsvs 2000
vs 71.1% in 2000
29.2% rent
1.3
−34%vs 2000
vs 1.9 in 2000
1990 – 2024
RELATED:See current rent listings in Decatur County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic95.5%(8,296)
Black0.9%(79)
Hispanic / Latino1.7%(148)
Asian0.6%(54)
Other0%
Diversity Score8%(695)
1990
White, non-Hispanic99.1%(8,261)
Black0.2%(15)
Hispanic / Latino0.5%(43)
Asian0.4%(35)
Other0.3%(27)
Diversity Score3.5%(296)
4
−56%vs 2000
vs 8 in 2000
1990 – 2024
Section 05

Education

12.3%
−2.9 ptsvs 2000
vs 15.1% in 2000
US average: 20.3%
High school or higher
71.8%
−9.9 ptsvs 2000
vs 81.7% in 2000
US average: 75.2%
5.0%
−0.4 ptsvs 2000
vs 5.4% in 2000
US average: 7.1%
Section 06

Commute & transportation

26.5 min
+50%vs 2000
vs 17.7 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Decatur County

Head to head

Compare Decatur County to nearby counties

Frequently asked

How many people live in Decatur County, Iowa?

Decatur County, Iowa has about 8,338 residents according to the 1990 Census.

What is the median household income in Decatur County, Iowa?

The typical household in Decatur County, Iowa earns about $18,105 a year. Half of households make more than that, and half make less.

Is Decatur County, Iowa expensive?

In Decatur County, Iowa, the median home is worth about $22,800, and the typical rent is about $220 a month.

How educated are people in Decatur County, Iowa?

About 12.3% of adults age 25 and over in Decatur County, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Decatur County, Iowa?

About 21.0% of people in Decatur County, Iowa live below the federal poverty line.

Keep going

Explore from here

DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →