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CITY · 1990 CENSUS

Johnston

Iowa · 4,702 residents · 19.49 sq mi
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The short version

Johnston is significantly wealthier than the US average, with a median household income of $43,036. Population has fallen 46% since 2000, a loss of 3,947 residents. 34% of adults hold a bachelor's degree or higher, well above the national rate of 20%. Median home value is $96,000. Poverty is rare here, at 5.4% of residents. Households here earn about 64% more than the Iowa median.

At a glance
Wealthier
above the US median
US median: $30,130
Older
median age 35.1
US median: 33.0
More educated
34% hold a bachelor's degree
US average: 20%
More affordable
home values down 33%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

4,702
−46%vs 2000
vs 8,649 in 2000
1990 – 2025
241 / sq mi
−46%vs 2000
vs 444 / sq mi in 2000
US average: 221
35.1
−3%vs 2000
vs 36.3 in 2000
US average: 33.0
Population, 19902024
3K9K15K20K26K1990201020202024Johnston
202424K
1990201020202024
Section 02

Income & economy

$43,036
−25%inflation adjusted, since 2000
vs $76,094 in 2000
US average: $30,130
1990 – 2024
$19,685
−46%vs 2000
vs $36,407 in 2000
US average: $14,340
5.4%
+1.3 ptsvs 2000
vs 4.1% in 2000
US average: 13.2%
Section 03

Housing

$96,000
−33%inflation adjusted, since 2000
vs $187,400 in 2000
US average: $93,722
1990 – 2024
$573
+4%inflation adjusted, since 2000
vs $727 in 2000
US average: $450
63.7%
−10.3 ptsvs 2000
vs 74.0% in 2000
36.3% rent
2.2
−9%vs 2000
vs 2.5 in 2000
1990 – 2024
RELATED:See current rent listings in Johnston on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic95.3%(8,246)
Black0.6%(50)
Hispanic / Latino1.5%(132)
Asian2%(171)
Other0%
Diversity Score10%(862)
1990
White, non-Hispanic98.8%(4,645)
Black0%(0)
Hispanic / Latino1.3%(61)
Asian0.5%(22)
Other0.7%(35)
Diversity Score6.1%(286)
6
−39%vs 2000
vs 10 in 2000
1990 – 2024
Section 05

Education

33.8%
−16.1 ptsvs 2000
vs 49.9% in 2000
US average: 20.3%
High school or higher
92.5%
−2.2 ptsvs 2000
vs 94.7% in 2000
US average: 75.2%
12.1%
−3.2 ptsvs 2000
vs 15.3% in 2000
US average: 7.1%
Section 06

Commute & transportation

17.7 min
+68%vs 2000
vs 10.5 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.

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Frequently asked

How many people live in Johnston, Iowa?

Johnston, Iowa has about 4,702 residents according to the 1990 Census.

What is the median household income in Johnston, Iowa?

The typical household in Johnston, Iowa earns about $43,036 a year. Half of households make more than that, and half make less.

Is Johnston, Iowa expensive?

In Johnston, Iowa, the median home is worth about $96,000, and the typical rent is about $573 a month.

How educated are people in Johnston, Iowa?

About 33.8% of adults age 25 and over in Johnston, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Johnston, Iowa?

About 5.4% of people in Johnston, Iowa live below the federal poverty line.

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

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