Arnold, MO
Demographics And Statistics

We take you around Arnold to find out what it's like to call it home.

Living in Arnold, Missouri

Life in Arnold research summary. HomeSnacks has been using Saturday Night Science to research the quality of life in Arnold over the past nine years using Census, FBI, Zillow, and other primary data sources. Here's a snapshot of Arnold based on the most recently available data.

20,956 Population
$273,572 Median home value
$78,370 Median income
93 Cost of living -7% vs US
$1,112 Median rent
2.8% Unemployment
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Arnold SnackAbility

5
Overall SnackAbility
Jobs 8/10
Housing 8/10
Affordability 8/10
Diversity 5/10
SafetyN/A
Amenities 8.5/10
Education 7/10
Commute 5/10

Crime in Arnold summary. We use data from the FBI to determine the crime rates in Arnold. Key points include:

  • There were 410 total crimes in Arnold in the last reporting year.

  • The overall crime rate per 100,000 people in Arnold is 1,967.7 / 100k people.

  • The violent crime rate per 100,000 people in Arnold is 105.6 / 100k people.

  • The property crime rate per 100,000 people in Arnold is 1,862.1 / 100k people.

  • Overall, crime in Arnold is -7.15% below the national average.

410
Total Crimes
-7.15%
Below National Average
Arnold
US

Crime In Arnold Comparison Table

Statistic Count
Raw
Arnold
/ 100k People
Missouri
/ 100k People
National
/ 100k People
Total Crimes Per 100K 410 1,967.7 2,403.3 2,119.2
Violent Crime 22 105.6 462.0 359.0
Murder 0 0.0 7.8 5.0
Robbery 3 14.4 51.5 61.0
Aggravated Assault 15 72.0 357.5 256.0
Property Crime 388 1,862.1 1,941.2 1,760.0
Burglary 9 43.2 236.3 229.0
Larceny 342 1,641.3 1,306.5 1,272.0
Car Theft 37 177.6 398.4 259.0
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Source: FBI Uniform Crime Reporting (2024)

Cost of living in Arnold summary. We use data on the cost of living to determine how expensive it is to live in Arnold. Real estate prices drive most of the variance in cost of living around Missouri. Key points include:

  • The cost of living in Arnold is 93 with 100 being average.

  • The cost of living in Arnold is 0.9x lower than the national average.

  • The median home value in Arnold is $273,572.

  • The median income in Arnold is $78,370.

93
Arnold's Overall Cost Of Living
0.9x
Lower Than The National Average
Arnold
US

Cost Of Living In Arnold Comparison Table

Living Expense Arnold Missouri National Average
Overall 93 90 100
Services 94 97 100
Groceries 98 98 100
Health 95 76 100
Housing 100 95 100
Transportation 100 94 100
Utilities 93 96 100
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Source: Cost of living index, normalized to US average = 100

Arnold, MO Weather

  • The average high in Arnold is 66.2° and the average low is 46.2°.

  • There are 74.1 days of precipitation each year.

  • Expect an average of 43.2 inches of precipitation each year with 12.4 inches of snow.

StatArnold
Average Annual High66.2
Average Annual Low46.2
Annual Precipitation Days74.1
Average Annual Precipitation43.2
Average Annual Snowfall12.4
66.2°
Average High
74.1
Days of Rain

Source: NOAA climate normals (30-year)

Arnold, MO Photos

Arnold Water Tower From I North
Source: Public Domain
Greaterstl
Source: Public Domain

Rankings & Articles For Arnold

Locations Around Arnold

Map Of Arnold, MO

Best Places Around Arnold

1

Waterloo, IL
Population 11,129

$327,507+20% vs Arnold
2

Columbia, IL
Population 11,127

$342,741+25% vs Arnold
3

Wildwood, MO
Population 35,133

$576,009+111% vs Arnold
4

Ballwin, MO
Population 31,279

$412,224+51% vs Arnold
5

Chesterfield, MO
Population 49,574

$570,324+108% vs Arnold
6

Town and Country, MO
Population 11,607

$1,146,741+319% vs Arnold
7

Kirkwood, MO
Population 29,363

$462,234+69% vs Arnold
8

Glendale, MO
Population 6,114

$565,844+107% vs Arnold
9

Webster Groves, MO
Population 23,712

$438,954+60% vs Arnold
10

Ladue, MO
Population 8,940

$1,331,344+387% vs Arnold

Arnold Demographics And Statistics

Population over time in Arnold

The current population in Arnold is 20,956. The population has increased 1.0% from 2010.

Year Population % Change
2024 20,956 0.3%
2023 20,884 0.2%
2022 20,840 0.2%
2021 20,808 -1.6%
2020 21,144 -0.0%
2019 21,146 0.2%
2018 21,107 0.0%
2017 21,102 -0.4%
2016 21,196 0.3%
2015 21,123 0.5%
2014 21,020 0.4%
2013 20,945 0.4%
2012 20,859 0.3%
2011 20,798 0.2%
2010 20,753 -

Race / Ethnicity in Arnold

White 88.0% (18,451)
African American 0.2% (52)
American Indian 0.0% (7)
Asian 1.8% (380)
Hawaiian 0.1% (14)
Other 0.4% (91)
Two Or More 6.7% (1,413)
Hispanic 2.6% (548)
See the full breakdown

Arnold is:

  • 88.0% White with 18,451 White residents.

  • 0.2% African American with 52 African American residents.

  • 0.0% American Indian with 7 American Indian residents.

  • 1.8% Asian with 380 Asian residents.

  • 0.1% Hawaiian with 14 Hawaiian residents.

  • 0.4% Other with 91 Other residents.

  • 6.7% Two Or More with 1,413 Two Or More residents.

  • 2.6% Hispanic with 548 Hispanic residents.

Race Arnold MO USA
White 88.0% 76.3% 57.4%
African American 0.2% 10.9% 11.9%
American Indian 0.0% 0.2% 0.5%
Asian 1.8% 2.1% 5.9%
Hawaiian 0.1% 0.1% 0.2%
Other 0.4% 0.4% 0.6%
Two Or More 6.7% 4.8% 4.3%
Hispanic 2.6% 5.2% 19.3%

Gender in Arnold

Female 51.5% (10,795)
Male 48.5% (10,161)
See the full breakdown
  • Arnold is 51.5% female with 10,795 female residents.

  • Arnold is 48.5% male with 10,161 male residents.

Gender Arnold MO USA
Female 51.5% 50.7% 50.5%
Male 48.5% 49.3% 49.5%

Highest level of educational attainment in Arnold for adults over 25

< 9th Grade 5.0% (1,047)
9-12th Grade 6.0% (1,257)
High School / GED 33.0% (6,915)
Some College 21.0% (4,400)
Associate's Degree 11.0% (2,305)
Bachelor's Degree 17.0% (3,562)
Master's Degree 5.0% (1,047)
Professional Degree 1.0% (209)
Doctorate Degree 1.0% (209)
See the full breakdown
  • 5.0% of adults in Arnold completed < 9th grade.

  • 6.0% of adults in Arnold completed 9-12th grade.

  • 33.0% of adults in Arnold completed high school / ged.

  • 21.0% of adults in Arnold completed some college.

  • 11.0% of adults in Arnold completed associate's degree.

  • 17.0% of adults in Arnold completed bachelor's degree.

  • 5.0% of adults in Arnold completed master's degree.

  • 1.0% of adults in Arnold completed professional degree.

  • 1.0% of adults in Arnold completed doctorate degree.

Education Arnold MO USA
< 9th Grade 5.0% 4.0% 4.0%
9-12th Grade 6.0% 5.0% 6.0%
High School / GED 33.0% 30.0% 26.0%
Some College 21.0% 21.0% 19.0%
Associate's Degree 11.0% 8.0% 9.0%
Bachelor's Degree 17.0% 20.0% 22.0%
Master's Degree 5.0% 9.0% 10.0%
Professional Degree 1.0% 2.0% 2.0%
Doctorate Degree 1.0% 1.0% 2.0%

Household Income For Arnold, Missouri

Less than $10,000 2.1% (44,188)
$10,000 to $14,999 2.8% (58,918)
$15,000 to $24,999 7.6% (159,778)
$25,000 to $34,999 7.5% (157,032)
$35,000 to $49,999 8.0% (167,018)
$50,000 to $74,999 20.2% (423,663)
$75,000 to $99,999 14.7% (307,574)
$100,000 to $149,999 23.9% (501,056)
$150,000 to $199,999 8.0% (167,518)
$200,000 or more 5.2% (108,849)
See the full breakdown
  • 2.1% of households in Arnold earn Less than $10,000.

  • 2.8% of households in Arnold earn $10,000 to $14,999.

  • 7.6% of households in Arnold earn $15,000 to $24,999.

  • 7.5% of households in Arnold earn $25,000 to $34,999.

  • 8.0% of households in Arnold earn $35,000 to $49,999.

  • 20.2% of households in Arnold earn $50,000 to $74,999.

  • 14.7% of households in Arnold earn $75,000 to $99,999.

  • 23.9% of households in Arnold earn $100,000 to $149,999.

  • 8.0% of households in Arnold earn $150,000 to $199,999.

  • 5.2% of households in Arnold earn $200,000 or more.

Income Arnold MO USA
Less than $10,000 2.1% 4.9% 5.0%
$10,000 to $14,999 2.8% 3.8% 3.4%
$15,000 to $24,999 7.6% 7.1% 6.3%
$25,000 to $34,999 7.5% 7.8% 6.6%
$35,000 to $49,999 8.0% 11.9% 10.1%
$50,000 to $74,999 20.2% 17.4% 15.5%
$75,000 to $99,999 14.7% 13.2% 12.6%
$100,000 to $149,999 23.9% 17.1% 17.5%
$150,000 to $199,999 8.0% 8.2% 9.6%
$200,000 or more 5.2% 8.7% 13.4%

Source: U.S. Census ACS 5-year estimates (2024)