Caledonia, MO · standard
ZIP Code 63631
Washington County, Missouri - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 849
- 8/sq mi Low-density area
- $74,211
- Median income Near-median income area
- $127,500
- Median home value Below-median home value
- 14.4%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Caledonia pairs an above-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- Top 46%
- household income, US ZIPs
- 19th pct
- home value, US ZIPs
- 8
- people per sq mi
- 83%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 63631 against every reporting US ZIP.
ZIP code 63631 is a sparsely populated ZIP (a standard USPS delivery area) in Caledonia, Washington County, Missouri, home to just 849 residents across 107.5 square miles, a density of 8 people per square mile, in the Chicago time zone.
ZIP 63631 lands in the middle-income range, with a median household income of $74,211 (11% above the average Missouri ZIP), while per-capita income is $33,161. The poverty rate is 9.7%, with unemployment at 1.5%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $127,500 (33% below the average Missouri ZIP), and median rent is $790; owner occupancy is 82.7%.
Formal educational attainment runs low here: just 14.4% of adults hold a bachelor's degree or higher, the median age is 56.1, and the average commute is -. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in Washington County, so 63631 can be compared with both its immediate and county-level context.
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 63631, Caledonia, 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
849
Population
107.5
Area (sq mi)
8
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 63631?
56.1
Median Age
46.0%
Male
54.0%
Female
1.3%
Foreign-Born
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?
$74,211
Median Household Income
+11% vs state ZIP avg
$33,161
Per Capita Income
9.7%
Poverty Rate
1.5%
Unemployment Rate
How ZIP 63631 ranks among Missouri ZIPs
Caledonia, MO household income vs. every Missouri ZIP code
Median household income among 948 reporting Missouri ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$74,211 Top 29% higher than 71% of 948 Missouri ZIPs
Each bar is a $20K-wide band; taller bars hold more Missouri 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
308housing units
308
Total Housing Units
266
Occupied Units
42
Vacant Units
2.05
Avg Household Size
Occupancy Type
$127,500
Median Home Value
-33% vs state ZIP avg
$790
Median Rent
1956
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 15 business establishments in ZIP 63631, employing approximately 87 people with a combined annual payroll of $1,850,000.
15
Businesses
87
Employees
$1.9M
Annual Payroll
2
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 4 | 26.7% |
| Retail trade | 3 | 20.0% |
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 63631 vs 63624 →
ZIP 63631 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 63624
Bismarck (63624)
3,757 residents
- 63648
Irondale (63648)
1,628 residents
- 63622 1,011
Belgrade (63622)
1,011 residents
- 63623 882
Belleview (63623)
882 residents
- 63631 849
Caledonia (63631)
849 residents
- 63663 723
Pilot Knob (63663)
723 residents
What this shows Among its immediate neighbors, ZIP 63631 ranks #5 by population - useful context the national average alone can't give.
ZIP 63631 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 63631
Caledonia (63631)
$74,211 median income
- 63648
Irondale (63648)
$51,765 median income
- 63623
Belleview (63623)
$44,844 median income
- 63663
Pilot Knob (63663)
$44,750 median income
- 63624
Bismarck (63624)
$41,984 median income
- 63622
Belgrade (63622)
$31,750 median income
What this shows By household income, ZIP 63631 ranks the highest of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 63631, both outside MO so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Washington County
Related Areas
Frequently Asked Questions
What county is ZIP code 63631 in?
ZIP code 63631 (Caledonia) is located in Washington County, Missouri. Washington County contains multiple ZIP codes, see the full list at /counties/washington-mo.
What is the population of ZIP code 63631?
ZIP code 63631 in Caledonia, MO has a population of 849 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 63631?
The median household income in ZIP 63631 is $74,211, which is 3% below the national average of $76,288.
What is the average home value in ZIP 63631?
The median home value in ZIP 63631 is $127,500, which is 54% below the national average of $278,155.
What is the demographic makeup of ZIP 63631?
The largest racial group in ZIP 63631 is White at 95.2%. Hispanic or Latino residents make up 0.4% of the population.
How many businesses are in ZIP code 63631?
ZIP code 63631 has 15 business establishments employing approximately 87 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 63631?
In ZIP code 63631, 66.4% of residents aged 25+ have a high school diploma or higher, and 14.4% 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 63631?
In ZIP code 63631, approximately 82.7% of occupied housing units are owner-occupied and 17.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 63631?
The poverty rate in ZIP code 63631 is 9.7% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 63631's numbers, next.
- See how ZIP 63631 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Caledonia, MO ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.