ZIP Code Tabulation Area · Missouri

ZIP Code 63664: Washington County, MO

ZIP Code 63664 (Washington County, Missouri) has an estimated 9,693 residents in 3,658 households. The median household income is $61,216, the median home value is $125,100 and the median gross rent is $676/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Total population

9,693

Margin of error ±913

Median household income

$61,216

Margin of error ±$11,378

Median home value

$125,100

Margin of error ±$21,766

Median gross rent

$676/mo

Margin of error ±$92

Median age

36.9 yrs

Margin of error ±4.2 yrs

Mean travel time to work

36.6 min

Margin of error ±8.9 min

How ZIP 63664 compares with Missouri and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 6366436.9 yrsMissouri39.0 yrsUnited States38.9 yrs

Median household income

ZIP 63664$61,216Missouri$70,702United States$80,734

Per capita income

ZIP 63664$27,198Missouri$39,695United States$44,673

Poverty rate

ZIP 6366418.6%Missouri12.6%United States12.5%

Unemployment rate

ZIP 636643.0%Missouri4.0%United States5.2%

Bachelor's degree or higher

ZIP 6366413.7%Missouri32.4%United States35.7%

Median home value

ZIP 63664$125,100Missouri$230,300United States$332,700

Median gross rent

ZIP 63664$676/moMissouri$1,033/moUnited States$1,413/mo

Owner-occupied homes

ZIP 6366473.2%Missouri68.1%United States65.2%

Mean travel time to work

ZIP 6366436.6 minMissouri23.5 minUnited States26.4 min

Worked from home

ZIP 636645.7%Missouri13.0%United States15.1%

All figures for ZIP 63664

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 63664 — ACS 2020–2024 5-year estimates
Measure	ZIP 63664	Margin of error	Missouri	United States
Total population	9,693	±913	6,191,814	334,922,499
Median age	36.9 yrs	±4.2 yrs	39.0 yrs	38.9 yrs
Households	3,658	±355	2,508,227	129,227,496
Median household income	$61,216	±$11,378	$70,702	$80,734
Per capita income	$27,198	±$2,438	$39,695	$44,673
Poverty rate	18.6%	±4.8 pts	12.6%	12.5%
Unemployment rate	3.0%	±2.0 pts	4.0%	5.2%
Bachelor's degree or higher	13.7%	±4.0 pts	32.4%	35.7%
Median home value	$125,100	±$21,766	$230,300	$332,700
Median gross rent	$676/mo	±$92	$1,033/mo	$1,413/mo
Owner-occupied homes	73.2%	±6.1 pts	68.1%	65.2%
Mean travel time to work	36.6 min	±8.9 min	23.5 min	26.4 min
Worked from home	5.7%	±2.9 pts	13.0%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 63664
Group	ZIP 63664	Missouri	United States
White alone, not Hispanic or Latino	91.5%	76.3%	57.4%
Black or African American alone, not Hispanic or Latino	0.2%	10.9%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	0.0%	0.2%	0.5%
Asian alone, not Hispanic or Latino	0.2%	2.1%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.1%	0.2%
Some other race alone, not Hispanic or Latino	0.2%	0.4%	0.6%
Two or more races, not Hispanic or Latino	6.4%	4.8%	4.3%
Hispanic or Latino (of any race)	1.6%	5.2%	19.3%

Where ZIP 63664 is

State: Missouri
Main county: Washington County
Largest overlapping place: Potosi (1% of the ZIP's land area)
Land area: 287.67 sq mi· about 34 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Washington County

63030 Washington County, MO 63071 Washington County, MO 63622 Washington County, MO 63626 Washington County, MO 63630 Washington County, MO 63631 Washington County, MO 63648 Washington County, MO 63660 Washington County, MO 63674 Washington County, MO

See every ZIP code in Missouri, or compare ZIP 63664 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.