63357 ZIP Code — Marthasville, MO

Warren County, Missouri

ZIP code 63357 is located in Marthasville, Missouri, within Warren County. It covers approximately 122.90 square miles and serves a population of 6,899 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 636.

About ZIP code 63357

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $227,100. Owner-occupancy is high at 90%, well above the national average.

Median household income is $83,326. The poverty rate of 6% is below the national average. 33% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 35 minutes is near the national average.

Educational attainment is near the national average, with 23% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (20%) compared to national benchmarks.

Overall, ZIP code 63357 reflects a community defined by high homeownership and a significant Social Security-dependent population.

6,899

population

122.90

sq mi land

Standard

ZIP type

Central (CT)

timezone

63357 ZIP code map

Cities in ZIP code 63357

Below are the cities the US Postal Service accepts for ZIP code 63357. Using any city not on this list may result in mail delivery delays.

City	Status
Marthasville	Acceptable
Marthasville	Preferred

Nearby ZIP codes

63068 New Haven (8.6 mi) 63090 Washington (9.2 mi) 63014 Berger (9.7 mi) 63380 Truesdale (12 mi) 63390 Wright City (12.2 mi) 63383 Warrenton (12.8 mi) 63332 Augusta (14.1 mi) 63348 Foristell (14.3 mi) 63084 Union (16.3 mi) 63013 Beaufort (16.4 mi) 63056 Leslie (16.9 mi) 63055 Labadie (17.2 mi)

Demographics updated 05/2026

Population
Total population	6,899
Population density	56 / sq mi
State FIPS	29
County FIPS	219

Geography
Land area	122.90 sq mi
Water area	4.35 sq mi
Latitude	38.6393
Longitude	-91.1352
Timezone	Central (CT)
Area code	636

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	33.0%	40.6%	43.8%
$50k – $100k	32.0%	31.7%	31.5%
$100k – $200k	30.3%	22.9%	19.5%
Over $200k	4.7%	4.9%	5.2%

Demographics & statistics

6,899

Population

People per sq mi

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

Income range	This ZIP	County avg	State avg
Under $50k	33.0%	40.6%	43.8%
$50k – $100k	32.0%	31.7%	31.5%
$100k – $200k	30.3%	22.9%	19.5%
Over $200k	4.7%	4.9%	5.2%

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%
Work from home	4.8%
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	%
Obesity	36.3%
High blood pressure	30.5%
High cholesterol	34.3%
Diabetes	9.9%
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	%
Smoking	20.1%
Binge drinking	18.1%
No physical activity	23.1%
Less than 7 hrs sleep	35.0%
Depression	23.4%
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%
No insurance	9.9%
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 about ZIP code 63357

What city is ZIP code 63357 in?

ZIP code 63357 is primarily assigned to Marthasville, Missouri.

What county is ZIP code 63357 in?

ZIP code 63357 falls within Warren County, Missouri.

Is ZIP code 63357 mostly owner-occupied?

90% of occupied units in ZIP code 63357 are owner-occupied, well above the national average.

What is the population of ZIP code 63357?

ZIP code 63357 has an estimated population of 6,899 residents, with a density of 56 people per square mile.

What is the median household income in ZIP code 63357?

The median household income in ZIP code 63357 is $83,326, above the national median of ~$75,000.

What is the typical home value in ZIP code 63357?

The median home value in ZIP code 63357 is $227,100.

What timezone is ZIP code 63357 in?

ZIP code 63357 observes the CST timezone.