Cadet ZIP Code List — Washington County, MO

There is one unique ZIP code in Cadet, Missouri and it is 63630. Area code: 573.

ZIP codes

67.68

sq mi land

0.27

sq mi water

573

area code

Cadet, MO ZIP code map

About Cadet, MO

Cadet, MO, is a charming small city located in Washington County. Known for its picturesque landscapes and community spirit, Cadet offers a blend of rural charm and natural beauty. The city is a quaint stop for those exploring the scenic routes of Missouri.

Location & geography

Situated in the southeastern part of Missouri, Cadet is approximately 50 miles south of St. Louis. It is surrounded by several neighboring cities, including Potosi, which is about 14 miles to the northwest, and Desloge, approximately 17 miles to the northeast. The city covers a total land area of 67.68 square miles, with a small water area of 0.27 square miles, contributing to its lush terrain.

Community & economy

Cadet embodies a tight-knit community atmosphere where residents enjoy a slower pace of life. The primary industries in the area include agriculture and small business operations, supporting the local economy. Daily life in Cadet reflects a harmonious blend of outdoor activities and local events that bring residents together.

Transportation

The city is easily accessible via several highways, with Highways 21 and 8 providing convenient routes for travel. For air travel, the nearest major airport is St. Louis Lambert International Airport, located about 60 miles north. While Cadet does not have public transit services, private transportation is commonly used by residents.

History

Cadet was founded in the early 19th century, emerging as a small community in Washington County. Historically, the area has supported agriculture and mining, which were key industries during its development. Notable events include the establishment of local schools and community gatherings that have shaped its cultural landscape.

Did you know?

One surprising fact about Cadet is that it is home to a strong sense of local history, with many buildings and sites reflecting its past. Additionally, the scenic beauty of surrounding areas makes Cadet a hidden gem for outdoor enthusiasts looking to explore the Missouri countryside.

ZIP codes for Cadet, MO (1)

ZIP code	City	County	Map
63630	Cadet	Washington	View map

Demographics & statistics

3,512

Population

37.5

Median age

$48,256

Median household income

$23,685

Per capita income

$101,700

Median home value

$805

Median monthly rent

76.3%

Home ownership

25.5%

Poverty rate

4.3%

Unemployment

1,377

Housing units

9.6%

Bachelor's or higher

Age distribution

Male Female

123

Under 5

146

5–9

109

10–14

109

117

15–19

138

20–24

204

25–34

241

200

35–44

237

244

45–54

290

123

55–59

145

191

60–64

226

103

65–74

122

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	876	24.9%
18 and over	2,636	75.1%
65 and over	344	9.8%
Median age	37.5 years

Race & ethnicity

White 94.4%

Two or more races 2.8%

Hispanic or Latino 1.7%

Other race 1.1%

Group	Count	%
White	3,371	94.4%
Two or more races	100	2.8%
Hispanic or Latino	60	1.7%
Other race	41	1.1%

Household income

Under $10k 7.6%

$10k–$15k 8.2%

$15k–$25k 5.1%

$25k–$35k 19.8%

$35k–$50k 11.4%

$50k–$75k 24.6%

$75k–$100k 7.4%

$100k–$150k 13.0%

$150k–$200k 3.0%

Range	% of households
Under $10k	7.6%
$10k–$15k	8.2%
$15k–$25k	5.1%
$25k–$35k	19.8%
$35k–$50k	11.4%
$50k–$75k	24.6%
$75k–$100k	7.4%
$100k–$150k	13.0%
$150k–$200k	3.0%
Median income	$48,256

Housing

Home values

Under $50k 24.0%

$50k–$100k 25.3%

$100k–$150k 12.6%

$150k–$200k 9.5%

$200k–$300k 21.3%

$300k–$500k 7.3%

Housing overview

Metric	Value
Median home value	$101,700
Median rent / month	$805
Owner occupied	76.3%
Renter occupied	23.7%
Vacant	17.5%
Single-family detached	64.3%
Large apartment buildings	0.0%
Mobile homes	35.7%
Median rooms	5.1
Avg household size (owned)	2.32

Year built

Era	%
2020 or later	3.6%
2010–2019	5.8%
2000–2009	20.4%
1990–1999	26.1%
1980–1989	15.0%
1970–1979	10.5%
1960–1969	9.7%
1950–1959	8.4%
1940–1949	0.6%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.4%
1 bedroom	7.4%
2 bedrooms	16.9%
3 bedrooms	66.2%
4 bedrooms	6.9%
5+ bedrooms	2.2%

Vehicles per household

Vehicles	% of households
No vehicle	16.3%
1 vehicle	17.0%
2 vehicles	38.7%
3 or more	28.0%

Heating fuel

Fuel type	%
Utility gas	2.4%
Electricity	66.4%
Propane / LP gas	18.0%
Wood	11.8%

Households & families

Household type	Count	%
Married-couple family	797	56.4%
Cohabiting couple	105	7.4%
Male householder, no spouse	297	21.0%
Female householder, no spouse	213	15.1%
Households with children under 18	473	33.5%
Households with seniors (65+)	399	28.3%
Average household size	2.49

Marital status

Status	Male	Female
Never married	27.6%	27.7%
Married	56.4%	60.2%
Separated	1.1%	3.0%
Widowed	4.4%	0.0%
Divorced	10.4%	9.1%

Education

Less than 9th grade 3.2%

Some HS, no diploma 20.5%

HS graduate 40.0%

Some college, no degree 18.5%

Associate's degree 8.2%

Bachelor's degree 4.7%

Graduate / professional 4.8%

Metric	%
HS diploma or higher	76.3%
Bachelor's or higher	9.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	17	2.1%
Kindergarten	0	0.0%
Elementary school	376	46.6%
High school	231	28.6%
College / grad school	183	22.7%

Employment

Industry of employment

Manufacturing 28.6%

Education & healthcare 20.3%

Retail trade 10.1%

Arts, food & hospitality 9.6%

Transportation & utilities 7.6%

Construction 7.0%

Public administration 6.3%

Professional & management 3.1%

Wholesale trade 2.8%

Agriculture & mining 2.6%

Finance & real estate 1.2%

Other services 0.8%

Occupation

Category	%
Management, business & arts	22.2%
Service	14.1%
Sales & office	15.7%
Natural resources & construction	7.3%
Production & transportation	40.7%

Employment type

Type	%
Private sector	82.4%
Government	11.7%
Self-employed	3.4%
Unpaid family workers	2.5%

Commute

Method	%
Drive alone	77.3%
Carpool	16.4%
Public transit	2.5%
Walk	2.5%
Other means	0.0%
Avg commute (minutes)	31.6

Poverty

All people 25.5%

Under 18 years 42.0%

18 and over 20.0%

Married-couple families 8.7%

Female-led households 62.6%

Income support

Source	% of households
Social Security	32.0%
Retirement income	28.8%
Supplemental Security	11.2%
Cash public assistance	3.3%
Food stamps / SNAP	23.4%

Health indicators

Condition	%
High blood pressure	35.0%
High cholesterol	33.0%
Heart disease	7.9%
Stroke	3.8%
Asthma	10.9%
Arthritis	29.5%
Kidney disease	3.3%
Pulmonary disease	11.2%
Cancer	6.0%

Behavior / access	%
Binge drinking	17.1%
No physical activity	31.0%
Less than 7 hrs sleep	36.0%
Fair or poor health	21.8%
Poor mental health	18.7%
Poor physical health	15.0%
No health insurance	19.4%
Visited doctor (checkup)	72.1%
Visited dentist	49.4%
Cholesterol screening	84.6%
Teeth loss	26.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	381	14.5%

Disability	%
Any disability	23.0%
Under 18	21.1%
18–64 years	20.2%
65 and over	45.9%

Health insurance coverage

Type	%
Private insurance	57.6%
Public insurance	42.7%
Uninsured under 19	9.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,243	92.3%
Spanish	54	1.7%
Other Indo-European	32	1.0%
Asian & Pacific Islander	22	0.7%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,460	98.5%
Born in same state	3,444	98.1%
Born in different state	2,627	74.8%
Foreign born	16	0.5%
Naturalized citizen	52	1.5%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	1,017	29%
Italian	509	14.5%

Ancestry	Count	%
French	304	8.7%
Dutch	65	1.9%

Technology access

Metric	% of households
Computer access	40.2%
Internet access	90.5%

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

Frequently asked questions

What is the ZIP code for Cadet, MO?

Cadet, MO has one ZIP code: 63630.

What is the main ZIP code for Cadet, MO?

The primary ZIP code for Cadet, MO is 63630. The city uses area code 573 for phone service.

What county is Cadet, MO in?

Cadet is located in Washington County, Missouri.

How many ZIP codes are in Cadet, MO?

Cadet, MO has 1 ZIP code.

What is the ZIP code for the main residential areas of Cadet in Washington County?

The primary ZIP code for Cadet, Missouri is 63630, which covers the city's residential neighborhoods and downtown area.

If I'm sending mail to a business or residence in Cadet, MO, what ZIP code should I use?

All mail addressed to Cadet, Missouri should use the ZIP code 63630, as this is the only ZIP code serving the city.