ZIP code 63631
Where is ZIP code 63631?
Caledonia, Missouri
Washington County · Standard ZIP code
ZIP code 63631 belongs to Caledonia, Missouri in Washington County. 63631 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area code 573. About 544 people live in the 63631 area, where the median household income is $74,211. The closest ZIP codes are 63648 (Irondale, 5.1 mi northeast), 63656 (Middle Brook, 5.7 mi southeast) and 63623 (Belleview, 6.5 mi southwest).
| ZIP code | 63631 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Caledonia |
| State | Missouri (MO) |
| County | Washington County |
| Time zone | Central Time · now |
| Area code | 573 |
| Coordinates | 37.7639, -90.7409 map |
| 3-digit prefix | 636 |
Population and income in 63631
| Population | 544 · lower than 74% of Missouri ZIP codes |
|---|---|
| People per square mile | 13 · lower than 73% of Missouri ZIP codes |
| Median age | 56.1 years · higher than 90% of Missouri ZIP codes |
| Men / women | 46% / 54% |
| Median household income | $74,211 · higher than 71% of Missouri ZIP codes |
| Income per person | $33,161 |
| Below the poverty line | 9.7% |
| Bachelor’s degree or higher | 14% of adults 25+ |
| Median home value | $127,500 · lower than 72% of Missouri ZIP codes |
| Median rent | $790 a month |
| Housing units | 308 |
| Households | 266 (2.05 people on average) |
| Owners / renters | 83% / 17% |
| Land area | 41.24 sq mi (plus 0.03 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 63631. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 63631
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 63648 | Irondale, MO | 5.1 mi NE | Standard |
| 63656 | Middle Brook, MO | 5.7 mi SE | Standard |
| 63623 | Belleview, MO | 6.5 mi SW | Standard |
| 63622 | Belgrade, MO | 6.8 mi W | Standard |
| 63624 | Bismarck, MO | 7.8 mi E | Standard |
| 63660 | Mineral Point, MO | 10.5 mi N | Standard |
| 63653 | Leadwood, MO | 10.6 mi NE | Standard |
| 63663 | Pilot Knob, MO | 10.9 mi SE | PO Box only |
| 63650 | Ironton, MO | 12.8 mi SE | Standard |
| 63637 | Doe Run, MO | 13.5 mi E | Standard |
| 63664 | Potosi, MO | 14.3 mi NW | Standard |
| 63628 | Bonne Terre, MO | 14.9 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 63631 or measure the distance to another ZIP code.
How to address mail to 63631
123 MAIN ST
CALEDONIA MO 63631
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (63631-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 63631?
- 63631 is a Caledonia, Missouri ZIP code.
- What county is 63631 in?
- ZIP code 63631 is in Washington County, Missouri.
- What time zone is ZIP code 63631 in?
- 63631 is in the Central Time zone (America/Chicago).
- What area code is 63631?
- Phone numbers in ZIP code 63631 use area code 573.
- What is the population of ZIP code 63631?
- About 544 people live in ZIP code 63631, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 63631?
- The median household income in 63631 is $74,211 a year, higher than 71% of Missouri ZIP codes.
- What ZIP codes are near 63631?
- The nearest ZIP codes to 63631 are 63648 (Irondale, 5.1 miles), 63656 (Middle Brook, 5.7 miles), 63623 (Belleview, 6.5 miles) and 63622 (Belgrade, 6.8 miles).