Saint Clair ZIP Code List — Franklin County, MO

There is one unique ZIP code in Saint Clair, Missouri and it is 63077. Area code: 636.

ZIP codes

87.67

sq mi land

0.26

sq mi water

636

area code

Saint Clair, MO ZIP code map

About Saint Clair, MO

Saint Clair, Missouri, is a quaint city located in Franklin County, known for its friendly community and welcoming atmosphere. The city offers a blend of small-town charm and convenient access to larger urban centers. Residents and visitors alike enjoy the picturesque setting and the numerous outdoor activities available in the surrounding area.

Location & geography

Saint Clair is situated in east-central Missouri, approximately 50 miles southwest of St. Louis, which makes it an appealing location for those seeking both quiet living and proximity to city amenities. The city covers a land area of 87.67 square miles, with a small water area of 0.26 square miles. The surrounding terrain is characterized by lush landscapes and is ideal for outdoor enthusiasts, contributing to its scenic beauty.

Community & economy

The character of Saint Clair is shaped by its tight-knit community, where local events and gatherings are a staple of daily life. The city's economy is bolstered by a mix of industries, including manufacturing and retail, providing residents with ample job opportunities. Daily life in Saint Clair is complemented by local shops, parks, and the inviting spirit of its residents, creating a warm environment for families.

Transportation

Saint Clair is accessible via nearby highways, including Interstate 44, which connects residents to larger cities and facilitates commuting. The closest major airport is St. Louis Lambert International Airport, located about 57 miles to the northeast. Local transit options may be limited, but the city’s road network ensures good connectivity for personal vehicles.

History

Saint Clair was founded in the early 19th century and has grown gradually, reflecting the resilience of its community. The city's development was impacted by the growth of the railway industry, which played a significant role in shaping its economy. Notable events in its history include the establishment of local businesses that have contributed to the community's charm and character.

Did you know?

An interesting fact about Saint Clair is that it is home to the historic Route 66, which attracts tourists looking to experience the nostalgia of this iconic highway. Additionally, the city celebrates its small-town heritage through various local festivals and events throughout the year.

ZIP codes for Saint Clair, MO (1)

ZIP code	City	County	Map
63077	Saint Clair	Franklin	View map

Demographics & statistics

11,437

Population

39.5

Median age

$55,601

Median household income

$28,384

Per capita income

$148,700

Median home value

$808

Median monthly rent

71.0%

Home ownership

12.5%

Poverty rate

6.8%

Unemployment

4,095

Housing units

12.0%

Bachelor's or higher

Age distribution

Male Female

275

Under 5

291

455

5–9

483

256

10–14

272

362

15–19

384

201

20–24

213

784

25–34

830

693

35–44

735

515

45–54

545

525

55–59

556

496

60–64

525

597

65–74

632

275

75–84

291

119

85+

127

← Male

Female →

Age summary

Group	Count	%
Under 18	2,491	21.8%
18 and over	8,946	78.2%
65 and over	2,041	17.8%
Median age	39.5 years

Race & ethnicity

White 90.1%

Two or more races 5.1%

Hispanic or Latino 4%

Other race 0.4%

Asian 0.2%

Black or African American 0.1%

Group	Count	%
White	10,739	90.1%
Two or more races	610	5.1%
Hispanic or Latino	479	4%
Other race	48	0.4%
Asian	24	0.2%
Black or African American	16	0.1%

Household income

Under $10k 6.2%

$10k–$15k 4.4%

$15k–$25k 10.4%

$25k–$35k 9.1%

$35k–$50k 16.5%

$50k–$75k 17.0%

$75k–$100k 16.5%

$100k–$150k 11.6%

$150k–$200k 4.8%

$200k+ 3.4%

Range	% of households
Under $10k	6.2%
$10k–$15k	4.4%
$15k–$25k	10.4%
$25k–$35k	9.1%
$35k–$50k	16.5%
$50k–$75k	17.0%
$75k–$100k	16.5%
$100k–$150k	11.6%
$150k–$200k	4.8%
$200k+	3.4%
Median income	$55,601

Housing

Home values

Under $50k 5.5%

$50k–$100k 12.4%

$100k–$150k 33.1%

$150k–$200k 18.1%

$200k–$300k 22.3%

$300k–$500k 7.5%

$500k–$1M 1.0%

Housing overview

Metric	Value
Median home value	$148,700
Median rent / month	$808
Owner occupied	71.0%
Renter occupied	29.0%
Vacant	13.9%
Single-family detached	69.6%
Large apartment buildings	2.0%
Mobile homes	15.6%
Median rooms	5.3
Avg household size (owned)	2.42

Year built

Era	%
2020 or later	0.0%
2010–2019	3.7%
2000–2009	11.2%
1990–1999	22.8%
1980–1989	9.3%
1970–1979	16.1%
1960–1969	8.6%
1950–1959	10.4%
1940–1949	4.4%
1939 or earlier	13.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	13.9%
2 bedrooms	25.6%
3 bedrooms	41.6%
4 bedrooms	15.5%
5+ bedrooms	2.7%

Vehicles per household

Vehicles	% of households
No vehicle	5.3%
1 vehicle	23.5%
2 vehicles	36.9%
3 or more	34.2%

Heating fuel

Fuel type	%
Utility gas	11.0%
Electricity	70.6%
Propane / LP gas	10.1%
Fuel oil	1.7%
Wood	4.9%
Solar	0.3%
No fuel used	1.2%

Households & families

Household type	Count	%
Married-couple family	2,247	47.8%
Cohabiting couple	378	8.0%
Male householder, no spouse	927	19.7%
Female householder, no spouse	1,149	24.4%
Households with children under 18	1,373	29.2%
Households with seniors (65+)	1,507	32.1%
Average household size	2.40

Marital status

Status	Male	Female
Never married	32.9%	18.4%
Married	49.9%	54.0%
Separated	0.9%	1.5%
Widowed	2.6%	12.9%
Divorced	13.7%	13.2%

Education

Less than 9th grade 2.9%

Some HS, no diploma 12.9%

HS graduate 43.2%

Some college, no degree 21.1%

Associate's degree 8.0%

Bachelor's degree 8.1%

Graduate / professional 3.9%

Metric	%
HS diploma or higher	84.2%
Bachelor's or higher	12.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	254	10.4%
Kindergarten	191	7.8%
Elementary school	1,214	49.7%
High school	430	17.6%
College / grad school	352	14.4%

Employment

Industry of employment

Manufacturing 22.7%

Education & healthcare 18.0%

Construction 16.8%

Retail trade 11.9%

Professional & management 9.5%

Arts, food & hospitality 5.5%

Transportation & utilities 3.7%

Information 3.2%

Finance & real estate 2.8%

Public administration 2.6%

Other services 1.8%

Agriculture & mining 1.0%

Wholesale trade 0.5%

Occupation

Category	%
Management, business & arts	20.1%
Service	14.0%
Sales & office	22.4%
Natural resources & construction	18.3%
Production & transportation	25.3%

Employment type

Type	%
Private sector	86.9%
Government	8.5%
Self-employed	4.0%
Unpaid family workers	0.6%

Commute

Method	%
Drive alone	80.2%
Carpool	14.1%
Public transit	0.0%
Walk	0.2%
Other means	1.6%
Avg commute (minutes)	32.7

Poverty

All people 12.5%

Under 18 years 16.2%

18 and over 11.5%

Married-couple families 3.9%

Female-led households 21.2%

Income support

Source	% of households
Social Security	39.0%
Retirement income	32.3%
Supplemental Security	8.7%
Cash public assistance	0.9%
Food stamps / SNAP	13.7%

Health indicators

Condition	%
High blood pressure	30.9%
High cholesterol	34.5%
Heart disease	6.9%
Stroke	3.3%
Asthma	9.9%
Arthritis	27.6%
Kidney disease	2.9%
Pulmonary disease	8.9%
Cancer	6.6%

Behavior / access	%
Binge drinking	17.5%
No physical activity	26.1%
Less than 7 hrs sleep	34.6%
Fair or poor health	16.7%
Poor mental health	16.7%
Poor physical health	12.1%
No health insurance	17.0%
Visited doctor (checkup)	72.6%
Visited dentist	59.7%
Cholesterol screening	86.7%
Teeth loss	18.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	969	10.8%

Disability	%
Any disability	21.0%
Under 18	12.7%
18–64 years	16.9%
65 and over	45.6%

Health insurance coverage

Type	%
Private insurance	70.8%
Public insurance	33.6%
Uninsured under 19	2.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	10,871	95.1%
Spanish	31	0.3%
Other Indo-European	22	0.2%
Asian & Pacific Islander	9	0.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	11,097	97.0%
Born in same state	11,061	96.7%
Born in different state	8,687	76.0%
Foreign born	36	0.3%
Naturalized citizen	340	3.0%
Not a US citizen	57	16.8%

Ancestry

Ancestry	Count	%
Italian	2,148	18.8%
French	1,329	11.6%
Arab	807	7.1%
English	167	1.5%

Ancestry	Count	%
Irish	55	0.5%
Polish	54	0.5%
German	8	0.1%

Technology access

Metric	% of households
Computer access	41.1%
Internet access	91.9%

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

Frequently asked questions

What is the ZIP code for Saint Clair, MO?

Saint Clair, MO has one ZIP code: 63077.

What is the main ZIP code for Saint Clair, MO?

The primary ZIP code for Saint Clair, MO is 63077. The city uses area code 636 for phone service.

What county is Saint Clair, MO in?

Saint Clair is located in Franklin County, Missouri.

How many ZIP codes are in Saint Clair, MO?

Saint Clair, MO has 1 ZIP code.

What ZIP code should I use for mailing packages to businesses in downtown Saint Clair, Missouri?

Downtown Saint Clair is located in ZIP code 63077, which serves as the primary mailing address for all businesses and residents in the city.

If I'm sending mail to a residential address in Saint Clair, MO, what ZIP code do I need to use?

All residential addresses in Saint Clair, Missouri use the ZIP code 63077, as it is the only ZIP code assigned to this Franklin County city.