Saint Mary ZIP Code List — Sainte Genevieve County, MO

There is one unique ZIP code in Saint Mary, Missouri and it is 63673. Area code: 573.

ZIP codes

115.19

sq mi land

2.68

sq mi water

573

area code

Saint Mary, MO ZIP code map

About Saint Mary, MO

Saint Mary, Missouri, is a small, charming community located in the heart of Sainte Genevieve County. The town is known for its friendly atmosphere and scenic beauty, making it an attractive place for residents and visitors alike. With its rich history and engaging local culture, Saint Mary provides a unique glimpse into rural life in Missouri.

Location & geography

Saint Mary is situated in the southeastern part of Missouri, providing easy access to the greater Sainte Genevieve County area. Nearby cities include Sainte Genevieve, located approximately 16 miles to the northwest, Perryville, about 22 miles to the south, and Farmington, roughly 25 miles to the north. The city covers a total land area of 115.19 square miles, with a water area of 2.68 square miles, featuring a mix of plains and gently rolling hills.

Community & economy

The community of Saint Mary is characterized by its welcoming and close-knit atmosphere. Agriculture and local businesses play significant roles in the economy, with many residents involved in farming and small-scale enterprises. Daily life in Saint Mary revolves around community gatherings, local events, and outdoor activities, reflecting the town's commitment to maintaining a strong sense of community spirit.

Transportation

Saint Mary is conveniently accessible via Missouri State Highway 32, which connects residents to nearby towns and cities. The nearest major airport is Cape Girardeau Regional Airport, located about 40 miles to the south, providing necessary travel options. Public transportation options in the area are limited, making personal vehicles the most common form of transit.

History

Saint Mary was established in the early 19th century, with its origins deeply rooted in the agricultural development of Sainte Genevieve County. The community has historically been influenced by the farming industry, which continues to be a key aspect of the local economy. Notable events include annual community festivals that celebrate the town's heritage and traditions.

Did you know?

A surprising fact about Saint Mary is that it hosts various local festivals that highlight traditional foods and crafts of the region. Additionally, the town's proximity to the Mississippi River adds to its picturesque charm and opportunities for recreational activities.

ZIP codes for Saint Mary, MO (1)

ZIP code	City	County	Map
63673	Saint Mary	Sainte Genevieve	View map

Demographics & statistics

2,278

Population

39.9

Median age

$71,875

Median household income

$37,498

Per capita income

$199,500

Median home value

$731

Median monthly rent

83.1%

Home ownership

13.2%

Poverty rate

2.7%

Unemployment

837

Housing units

17.1%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

110

15–19

133

20–24

25–34

103

162

35–44

198

115

45–54

139

55–59

60–64

109

65–74

132

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	510	22.4%
18 and over	1,768	77.6%
65 and over	434	19.1%
Median age	39.9 years

Race & ethnicity

White 96.8%

Two or more races 1.8%

Black or African American 1.2%

Asian 0.2%

Group	Count	%
White	2,206	96.8%
Two or more races	40	1.8%
Black or African American	28	1.2%
Asian	4	0.2%

Household income

Under $10k 1.9%

$10k–$15k 4.7%

$15k–$25k 11.2%

$25k–$35k 8.1%

$35k–$50k 11.3%

$50k–$75k 15.4%

$75k–$100k 13.6%

$100k–$150k 11.8%

$150k–$200k 11.8%

$200k+ 10.3%

Range	% of households
Under $10k	1.9%
$10k–$15k	4.7%
$15k–$25k	11.2%
$25k–$35k	8.1%
$35k–$50k	11.3%
$50k–$75k	15.4%
$75k–$100k	13.6%
$100k–$150k	11.8%
$150k–$200k	11.8%
$200k+	10.3%
Median income	$71,875

Housing

Home values

Under $50k 10.4%

$50k–$100k 17.9%

$100k–$150k 6.6%

$150k–$200k 15.2%

$200k–$300k 23.7%

$300k–$500k 21.6%

$500k–$1M 4.5%

Housing overview

Metric	Value
Median home value	$199,500
Median rent / month	$731
Owner occupied	83.1%
Renter occupied	16.9%
Vacant	17.2%
Single-family detached	75.0%
Large apartment buildings	0.0%
Mobile homes	20.3%
Median rooms	5.6
Avg household size (owned)	2.83

Year built

Era	%
2020 or later	0.0%
2010–2019	6.0%
2000–2009	15.1%
1990–1999	12.3%
1980–1989	14.9%
1970–1979	16.9%
1960–1969	11.8%
1950–1959	7.4%
1940–1949	2.2%
1939 or earlier	13.5%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	6.2%
2 bedrooms	20.2%
3 bedrooms	55.1%
4 bedrooms	9.0%
5+ bedrooms	7.5%

Vehicles per household

Vehicles	% of households
No vehicle	2.1%
1 vehicle	16.9%
2 vehicles	37.0%
3 or more	44.0%

Heating fuel

Fuel type	%
Utility gas	1.5%
Electricity	38.5%
Propane / LP gas	47.6%
Fuel oil	0.7%
Wood	11.7%

Households & families

Household type	Count	%
Married-couple family	400	49.6%
Cohabiting couple	60	7.4%
Male householder, no spouse	180	22.3%
Female householder, no spouse	166	20.6%
Households with children under 18	249	30.9%
Households with seniors (65+)	323	40.1%
Average household size	2.82

Marital status

Status	Male	Female
Never married	38.9%	31.7%
Married	45.0%	41.2%
Separated	2.2%	3.2%
Widowed	6.3%	15.1%
Divorced	7.6%	8.8%

Education

Less than 9th grade 3.2%

Some HS, no diploma 6.2%

HS graduate 47.5%

Some college, no degree 19.0%

Associate's degree 7.0%

Bachelor's degree 14.1%

Graduate / professional 2.9%

Metric	%
HS diploma or higher	90.6%
Bachelor's or higher	17.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	10	2.2%
Kindergarten	24	5.3%
Elementary school	229	50.1%
High school	176	38.5%
College / grad school	18	3.9%

Employment

Industry of employment

Manufacturing 24.4%

Education & healthcare 15.3%

Construction 11.4%

Retail trade 10.9%

Agriculture & mining 10.7%

Other services 9.1%

Transportation & utilities 7.9%

Arts, food & hospitality 4.0%

Finance & real estate 2.1%

Public administration 1.8%

Professional & management 1.6%

Wholesale trade 0.7%

Occupation

Category	%
Management, business & arts	24.6%
Service	11.9%
Sales & office	19.3%
Natural resources & construction	17.4%
Production & transportation	26.8%

Employment type

Type	%
Private sector	80.3%
Government	15.9%
Self-employed	3.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	94.9%
Carpool	2.3%
Public transit	0.0%
Walk	0.1%
Other means	0.0%
Avg commute (minutes)	32.3

Poverty

All people 13.2%

Under 18 years 25.1%

18 and over 9.7%

Married-couple families 4.0%

Female-led households 82.1%

Income support

Source	% of households
Social Security	36.5%
Retirement income	37.0%
Supplemental Security	9.3%
Cash public assistance	2.1%
Food stamps / SNAP	4.7%

Health indicators

Condition	%
High blood pressure	31.5%
High cholesterol	33.4%
Heart disease	6.9%
Stroke	3.0%
Asthma	9.1%
Arthritis	27.8%
Kidney disease	2.8%
Pulmonary disease	7.7%
Cancer	7.0%

Behavior / access	%
Binge drinking	17.9%
No physical activity	25.1%
Less than 7 hrs sleep	34.2%
Fair or poor health	14.9%
Poor mental health	14.9%
Poor physical health	11.0%
No health insurance	14.8%
Visited doctor (checkup)	73.6%
Visited dentist	62.0%
Cholesterol screening	88.9%
Teeth loss	16.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	108	6.1%

Disability	%
Any disability	14.2%
Under 18	7.3%
18–64 years	6.1%
65 and over	47.2%

Health insurance coverage

Type	%
Private insurance	78.9%
Public insurance	33.2%
Uninsured under 19	0.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,171	95.3%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,277	100.0%
Born in same state	2,277	100.0%
Born in different state	1,909	83.8%
Foreign born	0	0.0%
Naturalized citizen	1	0.0%
Not a US citizen	1	100.0%

Ancestry

Ancestry	Count	%
Arab	262	11.5%
Italian	255	11.2%

Ancestry	Count	%
French	192	8.4%
Polish	1	0%

Technology access

Metric	% of households
Computer access	35.4%
Internet access	82.5%

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

Frequently asked questions

What is the ZIP code for Saint Mary, MO?

Saint Mary, MO has one ZIP code: 63673.

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

The primary ZIP code for Saint Mary, MO is 63673. The city uses area code 573 for phone service.

What county is Saint Mary, MO in?

Saint Mary is located in Sainte Genevieve County, Missouri.

How many ZIP codes are in Saint Mary, MO?

Saint Mary, MO has 1 ZIP code.

What is the ZIP code for the historic downtown area of Saint Mary in Sainte Genevieve County?

The downtown area of Saint Mary, Missouri is located in ZIP code 63673, which serves the entire city.

If I'm mailing a package to a residence in Saint Mary, Missouri, what ZIP code should I use?

All addresses in Saint Mary, Missouri use the ZIP code 63673, as it is the sole ZIP code serving this Sainte Genevieve County community.