St. Charles County, Missouri

St. Charles County covers 561 sq mi of land and has about 414,535 residents. 17 zip codes lie mainly within it, spread across 13 cities and towns. Zip codes that only partly reach into the county are listed on each zip's own page.

Population

414,535

740/sq mi

Median household income

$105K

U.S. $81K

Median home value

$321K

U.S. $333K

Median rent

$1,370

U.S. $1,413

Median age

39.8

U.S. 38.9

Poverty rate

5.2%

U.S. 12.5%

Cities and towns

Zip codes in St. Charles County

17 total

Zip	City	Type	Population	IncomeMedian income	Home value
63301	Saint Charles	Residential	52,667	$85,308	$267,600
63302	Saint Charles · PO box	PO box / unique	—	—	—
63303	Saint Charles	Residential	46,089	$99,138	$321,100
63304	Saint Charles	Residential	43,195	$114,442	$351,000
63332	Augusta	Residential	1,651	$146,146	$385,400
63338	Cottleville · PO box	PO box / unique	—	—	—
63341	Defiance	Residential	3,515	$170,598	$606,800
63346	Flinthill · PO box	PO box / unique	—	—	—
63348	Foristell	Residential	10,394	$115,661	$386,200
63365	New Melle	Residential	51	$53,542	—
63366	O Fallon	Residential	54,769	$100,621	$304,500
63367	Lake Saint Louis	Residential	29,725	$137,648	$409,100
63368	O Fallon	Residential	46,966	$124,297	$349,200
63373	Portage Des Sioux	Residential	690	$88,750	$221,300
63376	Saint Peters	Residential	74,962	$96,393	$275,400
63385	Wentzville	Residential	51,330	$112,199	$347,200
63386	West Alton	Residential	482	$110,250	$157,000

St. Charles County at a glance

Compared with the U.S.

Household income distribution

<$25k

$25–50k

13%

$50–75k

15%

$75–100k

13%

$100–150k

23%

$150–200k

14%

$200k+

16%

Highest education (adults 25+)

No diploma

High school

23%

Some college

21%

Associate's

Bachelor's

27%

Graduate

16%

How people get to work

Drove alone

74%

Carpooled

Transit

0.1%

Walked

0.8%

Bicycle

0.1%

Worked from home

18%

Other

At a glance

	St. Charles	U.S.
Own their home	80.5%	65.2%
Bachelor's degree or higher	42.7%	35.7%
Work from home	18%	15.1%
Households with broadband	95.1%	91%
Without health insurance	4.2%	8.4%
Foreign-born	4.5%	14.1%
Veterans (of adults)	6.6%	6.2%
Unemployment	2.9%	5.2%
Average commute	24.5 min	26.4 min