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CITY · 2010 ACS

Arnold

Missouri · 20,808 residents · 11.528 sq mi
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The short version

Arnold is wealthier than most US places, with a median household income of $61,813. Population has held roughly steady since 2000. 18% of adults hold a bachelor's degree or higher, below the national rate of 28%. Median home value has risen by half since 2000, reaching $155,800. Poverty is rare here, at 5.1% of residents. Households here earn about 34% more than the Missouri median.

At a glance
Wealthier
above the US median
US median: $52,703
Older
median age 39.2
US median: 37.2
Less educated
18% hold a bachelor's degree
US average: 28%
Less affordable
home values up 30%, inflation adjusted
US median home: $225,659
Section 01

Population & growth

Total population
20,808
+4%since 2000
from 19,965 in 2000
1990 – 2025
Population density
1,805 / sq mi
+4%since 2000
from 1,732 / sq mi in 2000
US average: 261
Median age
39.2
+7%since 2000
from 36.7 in 2000
US average: 37.2
Population, 1990 – 2024
19K19K20K21K21K1990201020202024Arnold
202421K
1990201020202024
Section 02

Income & economy

Median household income
$61,813
+3%inflation adjusted, since 2000
from $47,188 in 2000
US average: $52,703
1990 – 2024
Per capita income
$26,752
+31%since 2000
from $20,378 in 2000
US average: $27,286
Households earning $100K+
36.9%
+0.6 ptssince 2009
from 36.3% in 2009
US average: 33.3%
Poverty rate
5.1%
+0.6 ptssince 2000
from 4.4% in 2000
US average: 13.8%
Income inequality (Gini)
0.356
US average: 0.461
Workforce by industry, 2010
Information12.7%
US avg: 11.5%
Retail trade11.7%
US avg: 10.9%
Wholesale trade8.6%
US avg: 7.2%
Other services7.1%
US avg: 7%
Finance & insurance6.8%
US avg: 5.1%
Public administration5.8%
US avg: 4.9%
Professional, scientific, technical5.4%
US avg: 4.2%
Arts, entertainment, food3.2%
US avg: 2.4%
Transportation & warehousing2.9%
US avg: 3.1%
Education & health services1.4%
US avg: 0.9%
Agriculture, forestry, fishing0.8%
US avg: 1.9%
Construction0.5%
US avg: 1.4%
Manufacturing0.3%
US avg: 0.5%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$155,800
+30%inflation adjusted, since 2000
from $94,400 in 2000
US average: $225,659
1990 – 2024
Median gross rent
$705
−3%inflation adjusted, since 2000
from $575 in 2000
US average: $853
Owner-occupied
55.1%
−26.0 ptssince 2000
from 81.2% in 2000
21.9% rent
Vacancy rate
8.6%
+0.6 ptssince 2009
from 8.0% in 2009
US average: 12.1%
Owner cost-burdened
19.8%
−0.7 ptssince 2009
from 20.5% in 2009
US average: 30.9%
Renter cost-burdened
39.4%
+2.5 ptssince 2009
from 36.9% in 2009
US average: 46.8%
Afford Score
2.5
+26%since 2000
from 2.0 in 2000
1990 – 2024
RELATED:See current rent listings in Arnold on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic97.2%(19,408)
Black0.3%(59)
Hispanic / Latino1%(207)
Asian0.4%(75)
Other0%
Diversity Score4.3%(851)
2010
White, non-Hispanic94.9%(19,754)
Black0.5%(112)
Hispanic / Latino2.2%(455)
Asian0.9%(182)
Other1.1%(222)
Diversity Score11.3%(2,361)
Diversity Score
11
+166%since 2000
from 4 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
17.9%
+6.4 ptssince 2000
from 11.5% in 2000
US average: 27.9%
High school or higher
87.8%
+8.6 ptssince 2000
from 79.2% in 2000
US average: 84.9%
Graduate degree
5.4%
+3.0 ptssince 2000
from 2.4% in 2000
US average: 10.2%
Section 06

Commute & transportation

Average commute
27.0 min
+52%since 2000
from 17.8 min in 2000
US average: 25.2
Drive alone to work
85.3%
−1.8 ptssince 2009
from 87.2% in 2009
US average: 76.2%
Carpooled to work
9.9%
+0.5 ptssince 2009
from 9.4% in 2009
US average: 10.4%
Public transit
0.1%
+0.1 ptssince 2009
from 0.0% in 2009
US average: 4.7%
Worked from home
2.0%
+0.1 ptssince 2009
from 1.8% in 2009
US average: 4.1%
Walked to work
1.4%
+0.7 ptssince 2009
from 0.8% in 2009
US average: 2.8%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.5%
No vehicle available
4.5%
+0.3 ptssince 2009
from 4.2% in 2009
US average: 8.7%
Section 07

Work & employment

Self-employed
10.1%
+0.9 ptssince 2009
from 9.2% in 2009
US average: 12.9%
Management & professional
27.7%
−33.0 ptssince 2009
from 60.7% in 2009
US average: 35.2%
Section 08

People & community

Male
48.7%
−0.5 ptssince 2009
from 49.1% in 2009
Female
51.3%
+0.5 ptssince 2009
from 50.9% in 2009
Foreign born
3.0%
+0.8 ptssince 2009
from 2.2% in 2009
US average: 12.8%
Veterans
11.5%
−36.4 ptssince 2009
from 47.9% in 2009
US average: 9.9%
Drill deeper

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Seminole
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Compare Arnold to nearby cities

ARNOLD VS
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Income$106,362+72%
Home value$318,600+104%
Population35,333+68%
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ARNOLD VS
Concord
Income$89,038+44%
Home value$303,600+95%
Population18,368−13%
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ARNOLD VS
Mehlville
Income$67,071+9%
Home value$218,400+40%
Population29,805+42%
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ARNOLD VS
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Income$138,144+123%
Home value$523,800+236%
Population9,075−57%
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Frequently asked

How many people live in Arnold, Missouri?

Arnold, Missouri has about 20,808 residents according to the 2010 American Community Survey.

What is the median household income in Arnold, Missouri?

The typical household in Arnold, Missouri earns about $61,813 a year. Half of households make more than that, and half make less.

Is Arnold, Missouri expensive?

In Arnold, Missouri, the median home is worth about $155,800, and the typical rent is about $705 a month.

How educated are people in Arnold, Missouri?

About 17.9% of adults age 25 and over in Arnold, Missouri hold a bachelor's degree or higher.

What is the poverty rate in Arnold, Missouri?

About 5.1% of people in Arnold, Missouri live below the federal poverty line.

Has Arnold, Missouri grown since 1990?

Yes, Arnold, Missouri has grown since 1990. The population has added about 1,980 residents, a change of about 11 percent over that period.

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

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