61478
ZIP 61478 is Smithshire, Illinois, mostly in Warren County; area code 309; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Warren +1 more
- Metro area
- none
- Population
- 420
- Coordinates
- 40.7563, -90.7604
Weather right now
Asking the National Weather Service…
Where 61478 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 61478 into a pocket calculator and turn it upside down: BLhIg — not quite a word, sorry.
- ➕ As a number, 61,478 = 2 × 59 × 521. Its digits add up to 26, a total 2,038 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1111000000100110 - 🏠 Its numerical neighbours: 61477 (Smithfield, IL, 30 mi away) and 61479 (Speer, IL, 61 mi away).
- 🔄 Backwards, 61478 becomes 87416 — and that is a real ZIP code: Fruitland, NM, 995 miles away.
- 👥 46 other ZIP codes are made of exactly the same digits (14786, 14867, 14876, 16748, 16847, 16874, …). The farthest-flung twin is 84761 in Parowan, UT, 1,195 miles away.
- 🧭 Farther north than 64% of all ZIP codes, and farther west than 58%.
- 🎯417 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 61478 and you would come out at 40.76°S, 89.24°E — 1,097 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 06m of daylight. Shortest: 9h 15m.
- 📏 At 34.4 square miles of land, 61478 is bigger than 49% of ZIP codes — room for about 26 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 420This ZIP420 |
|---|---|
| Households | 148This ZIP148 |
| Housing units | 148This ZIP148 |
| Median age | 17.9This ZIP17.9Illinois39.0US 38.9 |
| Median household income | $75,625This ZIP$75,625Illinois$83,390US $80,734 |
| Median home value | $103,600This ZIP$103,600Illinois$263,300US $332,700 |
| Bachelor's degree or higher | 27.4%This ZIP27.4% |
| Population density | 12.2 / sq miThis ZIP12.2 / sq mi |
Business and tax activity
| Business establishments | 3This ZIP3 |
|---|---|
| Employees | 32This ZIP32 |
| Annual payroll | $1,329,000This ZIP$1,329,000 |
| Tax returns filed | 130This ZIP130 |
| Total adjusted gross income | $9,087,000This ZIP$9,087,000 |
Land area
| Land area | 34.42 sq miThis ZIP34.42 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Counties 61478 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Warren County | 85.9% |
| Henderson County | 14.1% |
ZIP codes near 61478
| ZIP | City | Distance |
|---|---|---|
61460 | Media, IL | 4.3 mi |
61471 | Raritan, IL | 5.4 mi |
61473 | Roseville, IL | 6.6 mi |
61447 | Kirkwood, IL | 7.9 mi |
61480 | Stronghurst, IL | 8.3 mi |
61418 | Biggsville, IL | 8.5 mi |
61475 | Sciota, IL | 11.0 mi |
61417 | Berwick, IL | 11.4 mi |
61462 | Monmouth, IL | 12.0 mi |
61438 | Good Hope, IL | 13.2 mi |
Find every ZIP code within 10 miles of 61478 →
Questions about this ZIP code
Where is ZIP code 61478?
61478 is in Smithshire, Illinois, in Warren County. Its published point location is 40.7563, -90.7604.
What county is 61478 in?
61478 spans 2 counties: Warren County and Henderson County. Most of it falls in Warren 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 61478?
Smithshire uses area code 309, from NANPA's telephone records.
What time zone is 61478 in?
61478 uses America/Chicago.
How many people live in 61478?
About 420 people live in ZIP code 61478, in 148 households, at 12.2 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 61478?
$75,625 a year, against $83,390 across Illinois.
What ZIP codes are near 61478?
The closest are 61460 (4.3 mi), 61471 (5.4 mi), 61473 (6.6 mi), 61447 (7.9 mi) and 61480 (8.3 mi).
Is 61478 a PO Box ZIP code?
61478 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “61478 ZIP Code — Smithshire, Illinois (Warren County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/61478
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/61478.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.