63648
ZIP 63648 is Irondale, Missouri, mostly in Washington County; area code 573; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Washington +1 more
- Metro area
- none
- Population
- 1,858
- Coordinates
- 37.8153, -90.7010
Weather right now
Asking the National Weather Service…
Where 63648 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 63648 into a pocket calculator and turn it upside down: BhgEg — not quite a word, sorry.
- ➕ As a number, 63,648 = 2 × 2 × 2 × 2 × 2 × 3 × 3 × 13 × 17. Its digits add up to 27, a total 1,806 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1111100010100000 - 🏠 Its numerical neighbours: 63645 (Fredericktown, MO, 28 mi away) and 63650 (Ironton, MO, 15 mi away).
- 🔄 Backwards, 63648 becomes 84636 — and that is a real ZIP code: Holden, UT, 1,171 miles away.
- 👥 28 other ZIP codes are made of exactly the same digits (34668, 38646, 38664, 46368, 46863, 48366, …). The farthest-flung twin is 83646 in Meridian, ID, 1,400 miles away.
- 🧭 Farther south than 59% of all ZIP codes, and farther west than 58%.
- 🎯446 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 63648 and you would come out at 37.82°S, 89.30°E — 1,238 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 47m of daylight. Shortest: 9h 32m.
- 📏 At 31.3 square miles of land, 63648 is bigger than 47% of ZIP codes — room for about 24 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,858This ZIP1,858 |
|---|---|
| Households | 734This ZIP734 |
| Housing units | 779This ZIP779 |
| Median age | 40.9This ZIP40.9Missouri39.0US 38.9 |
| Median household income | $51,765This ZIP$51,765Missouri$70,702US $80,734 |
| Median home value | $99,500This ZIP$99,500Missouri$230,300US $332,700 |
| Bachelor's degree or higher | 14.5%This ZIP14.5% |
| Mean commute | 37.4 minThis ZIP37.4 min |
| Population density | 59.3 / sq miThis ZIP59.3 / sq mi |
Business and tax activity
| Business establishments | 8This ZIP8 |
|---|---|
| Employees | 15This ZIP15 |
| Annual payroll | $481,000This ZIP$481,000 |
| Tax returns filed | 580This ZIP580 |
| Total adjusted gross income | $27,939,000This ZIP$27,939,000 |
Land area
| Land area | 31.33 sq miThis ZIP31.33 sq mi |
|---|---|
| Water area | 0.02 sq miThis ZIP0.02 sq mi |
Counties 63648 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Washington County | 92.6% |
| St. Francois County | 7.4% |
Other place names in 63648
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 63648
| ZIP | City | Distance |
|---|---|---|
63624 | Bismarck, MO | 5.5 mi |
63631 | Caledonia, MO | 6.3 mi |
63653 | Leadwood, MO | 6.9 mi |
63660 | Mineral Point, MO | 6.9 mi |
63601 | Park Hills, MO | 8.6 mi |
63622 | Belgrade, MO | 11.4 mi |
63637 | Doe Run, MO | 12.3 mi |
63628 | Bonne Terre, MO | 12.3 mi |
63663 | Pilot Knob, MO | 13.4 mi |
63664 | Potosi, MO | 13.6 mi |
Find every ZIP code within 10 miles of 63648 →
Questions about this ZIP code
Where is ZIP code 63648?
63648 is in Irondale, Missouri, in Washington County. Its published point location is 37.8153, -90.7010.
What county is 63648 in?
63648 spans 2 counties: Washington County and St. Francois County. Most of it falls in Washington County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 63648?
Irondale uses area code 573, from NANPA's telephone records.
What time zone is 63648 in?
63648 uses America/Chicago.
How many people live in 63648?
About 1,858 people live in ZIP code 63648, in 734 households, at 59.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 63648?
$51,765 a year, against $70,702 across Missouri.
What ZIP codes are near 63648?
The closest are 63624 (5.5 mi), 63631 (6.3 mi), 63653 (6.9 mi), 63660 (6.9 mi) and 63601 (8.6 mi).
Is 63648 a PO Box ZIP code?
63648 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “63648 ZIP Code — Irondale, Missouri (Washington County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/63648
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/63648.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.