Arnold ZIP Code List — Jefferson County, MO

There is one unique ZIP code in Arnold, Missouri and it is 63010. Area code: 636.

ZIP codes

21.56

sq mi land

0.57

sq mi water

636

area code

Arnold, MO ZIP code map

About Arnold, MO

Arnold is a charming city located in Missouri, known for its friendly atmosphere and vibrant community. Situated in Jefferson County, it offers residents a suburban lifestyle with easy access to urban amenities. The city has a rich history and a range of recreational activities, making it an appealing destination for families and individuals alike.

Location & geography

Arnold is positioned approximately 20 miles south of St. Louis, making it an ideal location for those who prefer a quieter living environment while still being near the city. The city is surrounded by several other towns and cities, including Festus, located about 5 miles to the south, and Herculaneum, situated just under 4 miles away. Covering a total area of 21.56 square miles, Arnold includes 0.57 square miles of water, contributing to its scenic landscape.

Community & economy

The character of Arnold is defined by its close-knit community and a wide range of activities for residents of all ages. The local economy is supported by various industries, including commerce and healthcare, which provide numerous job opportunities. Daily life in Arnold features access to parks, recreational facilities, and local events that foster a strong sense of community engagement.

Transportation

Arnold is conveniently accessible via several major highways, including Interstate 55, which connects it to nearby cities and regions. The closest airport is St. Louis Lambert International Airport, located around 30 miles to the north, facilitating air travel for residents. Public transportation options are limited, but commuting by car is straightforward due to the city's well-maintained road networks.

History

Arnold was officially incorporated in 1972, evolving from a small community into a thriving city. The area has traditionally been supported by industries such as retail and manufacturing, contributing to its growth and development over the decades. A notable event in its history was the establishment of the Arnold Historic Church, which serves as a symbol of the city's dedication to preserving its cultural heritage.

Did you know?

One surprising fact about Arnold is that it is home to the popular Arnold City Park, which offers a variety of recreational activities like hiking, fishing, and picnicking. Additionally, the city hosts an annual outdoor concert series that draws attendees from surrounding areas and fosters community spirit.

ZIP codes for Arnold, MO (1)

ZIP code	City	County	Map
63010	Arnold	Jefferson	View map

Demographics & statistics

34,744

Population

40.3

Median age

$74,776

Median household income

$35,213

Per capita income

$195,500

Median home value

$1,039

Median monthly rent

77.8%

Home ownership

7.1%

Poverty rate

3.5%

Unemployment

1,240

Housing units

23.0%

Bachelor's or higher

Age distribution

Male Female

1,013

Under 5

1,022

942

5–9

951

904

10–14

912

1,124

15–19

1,135

865

20–24

872

2,629

25–34

2,652

2,135

35–44

2,155

2,033

45–54

2,051

1,541

55–59

1,554

1,173

60–64

1,184

1,726

65–74

1,742

903

75–84

911

306

85+

309

← Male

Female →

Age summary

Group	Count	%
Under 18	7,337	21.1%
18 and over	27,407	78.9%
65 and over	5,897	17.0%
Median age	40.3 years

Race & ethnicity

White 88.6%

Two or more races 5%

Hispanic or Latino 4.2%

Asian 1.1%

Black or African American 0.8%

Other race 0.2%

Group	Count	%
White	32,128	88.6%
Two or more races	1,826	5%
Hispanic or Latino	1,525	4.2%
Asian	395	1.1%
Black or African American	304	0.8%
Other race	74	0.2%

Household income

Under $10k 2.4%

$10k–$15k 2.7%

$15k–$25k 7.3%

$25k–$35k 7.7%

$35k–$50k 12.0%

$50k–$75k 18.2%

$75k–$100k 15.1%

$100k–$150k 23.0%

$150k–$200k 7.7%

$200k+ 4.0%

Range	% of households
Under $10k	2.4%
$10k–$15k	2.7%
$15k–$25k	7.3%
$25k–$35k	7.7%
$35k–$50k	12.0%
$50k–$75k	18.2%
$75k–$100k	15.1%
$100k–$150k	23.0%
$150k–$200k	7.7%
$200k+	4.0%
Median income	$74,776

Housing

Home values

Under $50k 4.5%

$50k–$100k 2.8%

$100k–$150k 15.3%

$150k–$200k 30.1%

$200k–$300k 31.6%

$300k–$500k 13.5%

$500k–$1M 2.2%

Housing overview

Metric	Value
Median home value	$195,500
Median rent / month	$1,039
Owner occupied	77.8%
Renter occupied	22.2%
Vacant	5.6%
Single-family detached	76.6%
Large apartment buildings	2.4%
Mobile homes	6.3%
Median rooms	5.9
Avg household size (owned)	2.59

Year built

Era	%
2020 or later	0.2%
2010–2019	4.6%
2000–2009	10.4%
1990–1999	21.6%
1980–1989	14.8%
1970–1979	16.6%
1960–1969	19.0%
1950–1959	10.1%
1940–1949	1.6%
1939 or earlier	1.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	2.7%
2 bedrooms	24.2%
3 bedrooms	52.9%
4 bedrooms	18.1%
5+ bedrooms	1.5%

Vehicles per household

Vehicles	% of households
No vehicle	3.1%
1 vehicle	31.6%
2 vehicles	42.9%
3 or more	22.4%

Heating fuel

Fuel type	%
Utility gas	55.7%
Electricity	39.7%
Propane / LP gas	3.4%
Fuel oil	0.6%
Wood	0.3%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	7,058	50.9%
Cohabiting couple	1,013	7.3%
Male householder, no spouse	2,498	18.0%
Female householder, no spouse	3,310	23.8%
Households with children under 18	4,502	32.4%
Households with seniors (65+)	4,226	30.4%
Average household size	2.49

Marital status

Status	Male	Female
Never married	28.8%	26.7%
Married	54.4%	48.2%
Separated	2.3%	1.7%
Widowed	3.2%	9.9%
Divorced	11.3%	13.4%

Education

Less than 9th grade 2.3%

Some HS, no diploma 6.0%

HS graduate 32.3%

Some college, no degree 25.0%

Associate's degree 11.4%

Bachelor's degree 16.0%

Graduate / professional 7.0%

Metric	%
HS diploma or higher	91.6%
Bachelor's or higher	23.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	363	5.0%
Kindergarten	344	4.7%
Elementary school	2,926	40.3%
High school	2,003	27.6%
College / grad school	1,616	22.3%

Employment

Industry of employment

Education & healthcare 20.3%

Retail trade 14.0%

Manufacturing 12.2%

Professional & management 10.8%

Arts, food & hospitality 8.8%

Construction 8.6%

Finance & real estate 6.8%

Transportation & utilities 5.3%

Other services 4.4%

Public administration 4.3%

Wholesale trade 3.4%

Information 1.0%

Agriculture & mining 0.2%

Occupation

Category	%
Management, business & arts	35.2%
Service	15.6%
Sales & office	23.3%
Natural resources & construction	11.5%
Production & transportation	14.5%

Employment type

Type	%
Private sector	84.7%
Government	10.5%
Self-employed	4.7%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	84.1%
Carpool	6.8%
Public transit	0.1%
Walk	0.9%
Other means	0.2%
Avg commute (minutes)	29.4

Poverty

All people 7.1%

Under 18 years 10.2%

18 and over 6.2%

Married-couple families 3.5%

Female-led households 16.7%

Income support

Source	% of households
Social Security	33.4%
Retirement income	29.0%
Supplemental Security	4.1%
Cash public assistance	0.9%
Food stamps / SNAP	5.6%

Health indicators

Condition	%
High blood pressure	26.7%
High cholesterol	33.0%
Heart disease	6.2%
Stroke	2.7%
Asthma	9.5%
Arthritis	26.4%
Kidney disease	2.5%
Pulmonary disease	7.3%
Cancer	6.5%

Behavior / access	%
Binge drinking	19.4%
No physical activity	24.4%
Less than 7 hrs sleep	34.2%
Fair or poor health	14.1%
Poor mental health	15.5%
Poor physical health	10.7%
No health insurance	15.1%
Visited doctor (checkup)	72.1%
Visited dentist	61.4%
Cholesterol screening	87.7%
Teeth loss	16.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,979	7.3%

Disability	%
Any disability	13.6%
Under 18	5.7%
18–64 years	9.5%
65 and over	38.7%

Health insurance coverage

Type	%
Private insurance	74.8%
Public insurance	28.2%
Uninsured under 19	1.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	32,709	94.1%
Spanish	887	2.7%
Other Indo-European	186	0.6%
Asian & Pacific Islander	524	1.6%
Other languages	158	0.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	33,054	95.1%
Born in same state	32,786	94.4%
Born in different state	27,456	79.0%
Foreign born	268	0.8%
Naturalized citizen	1,690	4.9%
Not a US citizen	1,109	65.6%

Ancestry

Ancestry	Count	%
Italian	4,982	14.3%
French	3,364	9.7%
Arab	2,265	6.5%
English	356	1%
Polish	187	0.5%

Ancestry	Count	%
Irish	126	0.4%
German	85	0.2%
Norwegian	20	0.1%
Dutch	15	0%

Technology access

Metric	% of households
Computer access	39.9%
Internet access	95.6%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for Arnold, MO?

Arnold, MO has one ZIP code: 63010.

What is the main ZIP code for Arnold, MO?

The primary ZIP code for Arnold, MO is 63010. The city uses area code 636 for phone service.

What county is Arnold, MO in?

Arnold is located in Jefferson County, Missouri.

How many ZIP codes are in Arnold, MO?

Arnold, MO has 1 ZIP code.

What ZIP code should I use for mail sent to businesses in downtown Arnold, Missouri?

Downtown Arnold and the central business district are located in ZIP code 63010, which serves as the primary ZIP code for the city.

Is there a separate ZIP code for the Arnold City Hall and municipal services area?

No, Arnold City Hall and all municipal services in Arnold are located within the single ZIP code 63010, as this is the only ZIP code serving the entire city.