PlainZIP

Portage Des Sioux, MO · standard

ZIP Code 63373

St. Charles County, Missouri - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

603
14/sq mi
$88,750
Median income
$221,300
Median home value
24.1%
Bachelor's or higher

The verdict

Portage Des Sioux pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.

Top 28%
household income, US ZIPs
Top 50%
home value, US ZIPs
14
people per sq mi
86%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 63373 against every reporting US ZIP.

ZIP code 63373 is a sparsely populated ZIP (a standard USPS delivery area) in Portage Des Sioux, St. Charles County, Missouri, home to just 603 residents across 43.1 square miles, a density of 14 people per square mile, in the Chicago time zone.

ZIP 63373 lands in the middle-income range, with a median household income of $88,750 (33% above the Missouri average), while per-capita income is $48,564. Poverty here runs at 8.0%, with unemployment measured at 2.6%. The typical home here is valued at $221,300 (16% above the state average); renters pay a median of $1,082 monthly, and 85.8% of units are owner-occupied.

Educational attainment sits below the national norm: 24.1% of adults hold a bachelor's degree or higher, the median age is 46, and the average commute is -. Beyond these figures, 8 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing St. Charles County, letting you compare 63373 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 63373, Portage Des Sioux, MO · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

603

Population

43.1

Area (sq mi)

14

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 63373?

46.0

Median Age

49.3%

Male

50.7%

Female

1.2%

Foreign-Born

White 91.0%
African American 1.0%
Asian 0.3%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 7.7%
Hispanic or Latino 6.7%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$88,750

Median Household Income

+33% vs state

$48,564

Per Capita Income

8.0%

Poverty Rate

2.6%

Unemployment Rate

How ZIP 63373 ranks nationally

Portage Des Sioux, MO household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$88,750 Top 28% higher than 72% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 65.4%
Bachelor's Degree or Higher 24.1%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

303

Total Housing Units

260

Occupied Units

43

Vacant Units

2.65

Avg Household Size

Occupancy Type

Owner 85.8%
Renter 14.2%

$221,300

Median Home Value

+16% vs state

$1,082

Median Rent

1968

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 13 business establishments in ZIP 63373, employing approximately 60 people with a combined annual payroll of $1,892,000.

13

Businesses

60

Employees

$1.9M

Annual Payroll

1

Industry Sectors

Industry Establishments % of Total
Construction 3 23.1%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 63373 vs 62028 →

ZIP 63373 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 63373 ranks #9 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 63373 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 63373 ranks #3 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
62028 Elsah, IL 1,276 2.9 mi
62022 Dow, IL 1,138 6.1 mi
63301 Saint Charles, MO 48,514 6.1 mi
63042 Hazelwood, MO 19,602 10.0 mi
62037 Grafton, IL 1,993 6.8 mi
63031 Florissant, MO 48,212 8.4 mi
63034 Florissant, MO 17,761 8.0 mi
63033 Florissant, MO 43,000 11.2 mi

More ZIP Codes in St. Charles County

63376 standard
Saint Peters, MO
Pop: 70,828
63301 standard
Saint Charles, MO
Pop: 48,514
63366 standard
O Fallon, MO
Pop: 46,175
63303 standard
Saint Charles, MO
Pop: 45,834
63368 standard
O Fallon, MO
Pop: 43,360
63304 standard
Saint Charles, MO
Pop: 40,336

Related Areas

St. Charles County Portage Des Sioux, MO Missouri

Frequently Asked Questions

What county is ZIP code 63373 in? ▼
ZIP code 63373 (Portage Des Sioux) is located in St. Charles County, Missouri. St. Charles County contains multiple ZIP codes, see the full list at /counties/st-charles-mo.
What is the population of ZIP code 63373? ▼
ZIP code 63373 in Portage Des Sioux, MO has a population of 603 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 63373? ▼
The median household income in ZIP 63373 is $88,750, which is 16% above the national average of $76,288.
What is the average home value in ZIP 63373? ▼
The median home value in ZIP 63373 is $221,300, which is 20% below the national average of $278,155.
What is the demographic makeup of ZIP 63373? ▼
The largest racial group in ZIP 63373 is White at 91.0%. Hispanic or Latino residents make up 6.7% of the population.
How many businesses are in ZIP code 63373? ▼
ZIP code 63373 has 13 business establishments employing approximately 60 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 63373? ▼
In ZIP code 63373, 65.4% of residents aged 25+ have a high school diploma or higher, and 24.1% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 63373? ▼
In ZIP code 63373, approximately 85.8% of occupied housing units are owner-occupied and 14.2% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 63373? ▼
The poverty rate in ZIP code 63373 is 8.0% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.