What are the schools like in Arnold, MO?

Arnold is served primarily by FOX C-6. The district operates 11 elementary schools, 4 middle schools, and 2 high schools with a student-to-teacher ratio of 13.1:1.

What is the median household income in Arnold?

The median household income in Arnold, MO is $72,317 according to the most recent US Census American Community Survey 5-year estimates. The unemployment rate is 3.5%.

What is the weather like in Arnold, MO?

Arnold has an average high temperature of 41.0°F in January and 88.4°F in July. Annual precipitation averages 42.8 inches and annual snowfall averages 10.2 inches.

Arnold, MO Cost of Living, Crime & Is It a Good Place to Live? (2026)

Q: Is Arnold, MO affordable or expensive?

Arnold's cost of living index is 96, where 100 represents the national average. This means Arnold is 4% less expensive than the average US city. The median home value is $192,000 and the median rent is $1,057 per month.

Q: What is the crime rate in Arnold, MO?

Arnold has a violent crime rate of 62.5 incidents per 100,000 residents and a property crime rate of 1505.2 per 100,000. The national average violent crime rate is approximately 380 per 100,000.

Is Arnold, MO a Good Place to Live?

Arnold is a small city of 20,840 in Missouri, with a median household income of $72,317 and a 3.5% unemployment rate. Its cost of living index is 96 (US average = 100), which is 4% below the national average.

Strengths: Arnold stands out for an affordable cost of living, below-average home prices, lower-than-average crime, solid school ratings (B).

Trade-offs: No major red flags stand out in the available data. Whether Arnold is right for you depends on your priorities — the full breakdown is below.

All Arnold city data on this page comes from official government sources — the US Census Bureau, FBI, NCES, BEA, and NOAA — updated annually.

Cost of Living

Index: 96.3

Arnold's overall cost of living index is 96.3, where 100 represents the US national average. Living in Arnold costs roughly 4% less than the average American city.

Metric	Arnold, MO	National Avg
Median Home Value	$192,000	$244,900
Median Monthly Rent	$1,057	$1,163
Homeownership Rate	74.7%	65.9%
Median Household Income	$72,317	$74,755

Crime & Safety

Very Safe

Arnold's violent crime rate is 62.5 per 100,000 residents — 84% lower than the national average of ~380 per 100,000.

Violent Crime

62.5 /100k

Property Crime

1505.2 /100k

Vertical marker = national average. Source: FBI UCR Program.

Schools & Education

Arnold is served primarily by FOX C-6. The student-to-teacher ratio is 13.1:1 (better than the national average of ~16:1).

Metric	Arnold, MO	National Avg
School District	FOX C-6	—
Elementary Schools	11	—
Middle Schools	4	—
High Schools	2	—
Student/Teacher Ratio	13.1:1	16:1
Bachelor's Degree or Higher	23.2%	35.4%
High School Diploma or Higher	91.3%	91.1%

Weather & Climate

Arnold sees average highs of 41.0°F in January and 88.4°F in July, with 42.8 inches of annual precipitation and 10.2 inches of snow per year.

Metric	Arnold, MO
Average High — January	41.0°F
Average High — July	88.4°F
Annual Precipitation	42.8"
Annual Snowfall	10.2"

Demographics

Metric	Arnold, MO	National Avg
Population	20,840	—
Median Age	41.0	38.9
Unemployment Rate	3.5%	3.7%
Avg Commute Time	29.0 min	26 min
White (non-Hispanic)	91.9%	59.3%
Black or African American	0.2%	13.6%
Hispanic or Latino	6.4%	18.9%
Asian	0.7%	6.3%
Under 18	20.8%	22.2%
65 and over	18.4%	16.8%

Nearby Cities

Oakville, MO 3 mi Kimmswick, MO 4 mi Imperial, MO 5 mi Concord, MO 6 mi Mehlville, MO 6 mi

ZIP Codes in Arnold

Arnold, MO is covered by 1 ZIP code:

63010

Arnold vs Other Cities

Arnold, MO vs Oakville, MO Arnold, MO vs Kimmswick, MO Arnold, MO vs Imperial, MO Arnold, MO vs Concord, MO Arnold, MO vs Mehlville, MO

Frequently Asked Questions

Is Arnold, MO affordable or expensive?

Arnold's cost of living index is 96, where 100 is the national average. That makes Arnold roughly 4% less expensive than a typical US city — a meaningful affordability advantage. The median home price is $192,000 and median rent is $1,057/month.

What is the crime rate in Arnold, MO?

Arnold's violent crime rate is 62.5 per 100,000 residents — the national average is ~380 per 100,000. Property crime is 1505.2 per 100,000 (national avg ~2,100). Data from the FBI Uniform Crime Reporting Program.

What are the schools like in Arnold?

Public schools in Arnold are operated by FOX C-6. The district has 11 elementary, 4 middle, and 2 high schools. The student-to-teacher ratio is 13.1:1. 23.2% of adults 25+ hold a bachelor's degree or higher.

Is Arnold, MO a good place to live?

Arnold, MO has a population of 20,840, a median household income of $72,317, and an unemployment rate of 3.5%. Whether it's right for you depends on your priorities — use the compare tool above to stack it against another city you're considering.

What is the weather like in Arnold?

Arnold averages 41.0°F in January and 88.4°F in July. Annual rainfall is 42.8 inches with about 10.2 inches of snow per year. Based on NOAA 30-year climate normals (1991–2020).

What ZIP codes are in Arnold?

Arnold, MO is covered by 1 ZIP code: 63010.

What is the population of Arnold?

The population of Arnold, Missouri is 20,840 with a median age of 41.0. Source: US Census ACS 5-Year Estimates.

What are the pros and cons of living in Arnold?

Key numbers for living in Arnold: cost of living index 96 (100 = US average), median home $192,000, median household income $72,317, crime index 39 (100 = US average, lower is safer), schools rated B. Whether these are benefits or drawbacks depends on where you're coming from — compare Arnold side by side with your current city to see the trade-offs.