Marthasville ZIP Code List — Warren County, MO

There is one unique ZIP code in Marthasville, Missouri and it is 63357. Area code: 636.

ZIP codes

122.90

sq mi land

4.35

sq mi water

636

area code

Marthasville, MO ZIP code map

About Marthasville, MO

Marthasville is a charming city located in the state of Missouri, situated within Warren County. Known for its small-town atmosphere and friendly community, Marthasville offers a serene environment for its residents and visitors. The city, identified by the ZIP code 63357, is a great representation of rural Missouri life.

Location & geography

Marthasville is located in the northern part of Warren County, making it easily accessible from nearby cities. It is approximately 15 miles southwest of the city of Saint Charles and around 50 miles west of downtown St. Louis. The land area of Marthasville measures 122.90 square miles, with a water area of 4.35 square miles, characterized by rolling hills and scenic landscapes.

Community & economy

The community in Marthasville is known for its close-knit character, where neighbors often come together for local events and gatherings. The town supports various industries, including agriculture and local services, which are vital for daily life. Residents enjoy a slower pace of living while benefiting from the amenities and cultural influences of nearby urban centers.

Transportation

Access to Marthasville is primarily via Missouri Route 94, which connects the city to other regional highways. The nearest major airport is the St. Louis Lambert International Airport, located approximately 45 miles to the east. Public transportation options are limited, but residents typically rely on personal vehicles for commuting.

History

Marthasville was founded in the early 19th century and has maintained its status as a small agricultural town through the decades. Historically, the economy was primarily driven by farming and local businesses, contributing to the community’s growth. Notable events in the town's history include the establishment of local schools and participation in regional fairs that highlight its agricultural roots.

Did you know?

A surprising fact about Marthasville is that it is named after Martha, the daughter of the city's founder, George H. Dyer. The city also serves as the eastern terminus of the Katy Trail, a popular recreational trail for cycling and hiking enthusiasts.

ZIP codes for Marthasville, MO (1)

ZIP code	City	County	Map
63357	Marthasville	Warren	View map

Demographics & statistics

6,899

Population

36.8

Median age

$83,326

Median household income

$34,300

Per capita income

$227,100

Median home value

$1,064

Median monthly rent

90.1%

Home ownership

6.0%

Poverty rate

5.0%

Unemployment

2,236

Housing units

22.7%

Bachelor's or higher

Age distribution

Male Female

276

Under 5

252

362

5–9

332

211

10–14

194

257

15–19

235

193

20–24

177

443

25–34

405

530

35–44

485

411

45–54

376

213

55–59

195

182

60–64

167

382

65–74

350

122

75–84

111

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,955	28.3%
18 and over	4,944	71.7%
65 and over	1,003	14.5%
Median age	36.8 years

Race & ethnicity

White 94.4%

Asian 2.3%

Two or more races 1.3%

Black or African American 0.9%

Hispanic or Latino 0.8%

Other race 0.2%

Group	Count	%
White	6,571	94.4%
Asian	158	2.3%
Two or more races	91	1.3%
Black or African American	63	0.9%
Hispanic or Latino	59	0.8%
Other race	15	0.2%

Household income

Under $10k 1.2%

$10k–$15k 0.7%

$15k–$25k 5.0%

$25k–$35k 6.5%

$35k–$50k 7.6%

$50k–$75k 22.2%

$75k–$100k 15.0%

$100k–$150k 21.2%

$150k–$200k 14.7%

$200k+ 6.0%

Range	% of households
Under $10k	1.2%
$10k–$15k	0.7%
$15k–$25k	5.0%
$25k–$35k	6.5%
$35k–$50k	7.6%
$50k–$75k	22.2%
$75k–$100k	15.0%
$100k–$150k	21.2%
$150k–$200k	14.7%
$200k+	6.0%
Median income	$83,326

Housing

Home values

Under $50k 0.3%

$50k–$100k 2.3%

$100k–$150k 26.3%

$150k–$200k 14.2%

$200k–$300k 25.6%

$300k–$500k 18.1%

$500k–$1M 13.0%

$1M+ 0.2%

Housing overview

Metric	Value
Median home value	$227,100
Median rent / month	$1,064
Owner occupied	90.1%
Renter occupied	9.9%
Vacant	11.0%
Single-family detached	90.6%
Large apartment buildings	0.1%
Mobile homes	4.1%
Median rooms	6.3
Avg household size (owned)	3.16

Year built

Era	%
2020 or later	0.1%
2010–2019	6.5%
2000–2009	19.2%
1990–1999	18.4%
1980–1989	17.1%
1970–1979	16.0%
1960–1969	5.3%
1950–1959	3.1%
1940–1949	1.9%
1939 or earlier	12.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	1.6%
2 bedrooms	24.8%
3 bedrooms	48.3%
4 bedrooms	16.8%
5+ bedrooms	8.5%

Vehicles per household

Vehicles	% of households
No vehicle	0.4%
1 vehicle	13.4%
2 vehicles	41.8%
3 or more	44.4%

Heating fuel

Fuel type	%
Utility gas	4.7%
Electricity	66.4%
Propane / LP gas	21.0%
Fuel oil	0.9%
Wood	6.6%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	1,214	55.7%
Cohabiting couple	288	13.2%
Male householder, no spouse	376	17.2%
Female householder, no spouse	303	13.9%
Households with children under 18	906	41.5%
Households with seniors (65+)	702	32.2%
Average household size	3.13

Marital status

Status	Male	Female
Never married	32.6%	29.0%
Married	49.4%	57.4%
Separated	0.0%	0.2%
Widowed	1.0%	7.5%
Divorced	17.0%	5.9%

Education

Less than 9th grade 1.1%

Some HS, no diploma 2.3%

HS graduate 38.1%

Some college, no degree 23.2%

Associate's degree 12.6%

Bachelor's degree 19.1%

Graduate / professional 3.6%

Metric	%
HS diploma or higher	96.6%
Bachelor's or higher	22.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	76	5.0%
Kindergarten	61	4.0%
Elementary school	745	48.6%
High school	396	25.8%
College / grad school	256	16.7%

Employment

Industry of employment

Education & healthcare 28.8%

Construction 18.1%

Manufacturing 14.7%

Retail trade 12.1%

Finance & real estate 4.4%

Transportation & utilities 4.3%

Arts, food & hospitality 3.8%

Other services 3.7%

Agriculture & mining 3.0%

Public administration 2.9%

Professional & management 2.4%

Wholesale trade 1.8%

Occupation

Category	%
Management, business & arts	35.2%
Service	11.5%
Sales & office	17.6%
Natural resources & construction	18.8%
Production & transportation	16.9%

Employment type

Type	%
Private sector	85.6%
Government	10.7%
Self-employed	3.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	82.0%
Carpool	9.2%
Public transit	0.0%
Walk	0.1%
Other means	3.9%
Avg commute (minutes)	34.8

Poverty

All people 6.0%

Under 18 years 1.0%

18 and over 7.7%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	33.3%
Retirement income	30.6%
Supplemental Security	2.6%
Cash public assistance	3.1%
Food stamps / SNAP	4.7%

Health indicators

Condition	%
High blood pressure	30.5%
High cholesterol	34.3%
Heart disease	6.9%
Stroke	3.0%
Asthma	9.1%
Arthritis	27.9%
Kidney disease	2.7%
Pulmonary disease	7.8%
Cancer	7.0%

Behavior / access	%
Binge drinking	18.1%
No physical activity	23.1%
Less than 7 hrs sleep	35.0%
Fair or poor health	14.4%
Poor mental health	15.0%
Poor physical health	11.0%
No health insurance	14.3%
Visited doctor (checkup)	73.9%
Visited dentist	63.7%
Cholesterol screening	89.4%
Teeth loss	15.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	437	8.8%

Disability	%
Any disability	9.7%
Under 18	1.9%
18–64 years	8.3%
65 and over	30.2%

Health insurance coverage

Type	%
Private insurance	77.4%
Public insurance	24.8%
Uninsured under 19	11.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	6,371	92.3%
Spanish	25	0.4%
Other Indo-European	25	0.4%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,856	99.4%
Born in same state	6,856	99.4%
Born in different state	5,760	83.5%
Foreign born	0	0.0%
Naturalized citizen	43	0.6%
Not a US citizen	43	100.0%

Ancestry

Ancestry	Count	%
Italian	1,357	19.7%
French	763	11.1%
Arab	265	3.8%

Ancestry	Count	%
Polish	79	1.1%
German	25	0.4%
English	16	0.2%

Technology access

Metric	% of households
Computer access	31.6%
Internet access	96.7%

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

Frequently asked questions

What is the ZIP code for Marthasville, MO?

Marthasville, MO has one ZIP code: 63357.

What is the main ZIP code for Marthasville, MO?

The primary ZIP code for Marthasville, MO is 63357. The city uses area code 636 for phone service.

What county is Marthasville, MO in?

Marthasville is located in Warren County, Missouri.

How many ZIP codes are in Marthasville, MO?

Marthasville, MO has 1 ZIP code.

What is the ZIP code for the downtown Marthasville area near Main Street?

The downtown Marthasville area, including Main Street, is located in ZIP code 63357.

What ZIP code should I use for mailing packages to businesses in Marthasville along Highway 100?

Marthasville's commercial areas along Highway 100 use ZIP code 63357 for all mail delivery.