49240
ZIP 49240 is Grass Lake, Michigan, mostly in Jackson County; area code 517; Eastern time.
- Type
- Standard
- Time zone
- America/Detroit
- County
- Jackson +1 more
- Metro area
- Jackson, MI
- Population
- 8,863
- Coordinates
- 42.2720, -84.1797
Weather right now
Asking the National Weather Service…
Where 49240 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 49240 into a pocket calculator and turn it upside down: OhZGh — not quite a word, sorry.
- ➕ As a number, 49,240 = 2 × 2 × 2 × 5 × 1231. Its digits add up to 19, a total 2,454 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100000001011000 - 🏠 Its numerical neighbours: 49239 (Frontier, MI, 40 mi away) and 49241 (Hanover, MI, 24 mi away).
- 🔄 Backwards, 49240 becomes 04294 — and that is a real ZIP code: Wilton, ME, 715 miles away.
- 👥 27 other ZIP codes are made of exactly the same digits (02494, 04294, 04429, 04492, 04924, 04942, …). The farthest-flung twin is 09244 in APO AE, a military post office, 4,240 miles away.
- 🧭 Farther north than 77% of all ZIP codes, and farther east than 59%.
- 🎯768 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 49240 and you would come out at 42.27°S, 95.82°E — 1,309 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 16m of daylight. Shortest: 9h 05m.
- 📏 At 104.1 square miles of land, 49240 is bigger than 79% of ZIP codes — room for about 79 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 8,863This ZIP8,863 |
|---|---|
| Households | 3,629This ZIP3,629 |
| Housing units | 3,907This ZIP3,907 |
| Median age | 46.8This ZIP46.8Michigan40.2US 38.9 |
| Median household income | $99,681This ZIP$99,681Michigan$72,875US $80,734 |
| Median home value | $298,700This ZIP$298,700Michigan$231,600US $332,700 |
| Median gross rent | $1,135This ZIP$1,135Michigan$1,129US $1,413 |
| Bachelor's degree or higher | 31.9%This ZIP31.9% |
| Mean commute | 26.3 minThis ZIP26.3 min |
| Population density | 85.1 / sq miThis ZIP85.1 / sq mi |
Business and tax activity
| Business establishments | 129This ZIP129 |
|---|---|
| Employees | 1,328This ZIP1,328 |
| Annual payroll | $111,663,000This ZIP$111,663,000 |
| Tax returns filed | 4,680This ZIP4,680 |
| Total adjusted gross income | $399,961,000This ZIP$399,961,000 |
Land area
| Land area | 104.10 sq miThis ZIP104.10 sq mi |
|---|---|
| Water area | 3.61 sq miThis ZIP3.61 sq mi |
Counties 49240 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Jackson County | 84.7% |
| Washtenaw County | 15.3% |
Other place names in 49240
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 49240
| ZIP | City | Distance |
|---|---|---|
49263 | Norvell, MI | 7.9 mi |
48118 | Chelsea, MI | 7.9 mi |
49254 | Michigan Center, MI | 8.0 mi |
49261 | Napoleon, MI | 8.3 mi |
49259 | Munith, MI | 8.6 mi |
48158 | Manchester, MI | 11.1 mi |
49204 | Jackson, MI | 11.5 mi |
49202 | Jackson, MI | 11.8 mi |
49203 | Jackson, MI | 11.9 mi |
49272 | Pleasant Lake, MI | 12.2 mi |
Find every ZIP code within 10 miles of 49240 →
Questions about this ZIP code
Where is ZIP code 49240?
49240 is in Grass Lake, Michigan, in Jackson County, part of the Jackson, MI metropolitan area. Its published point location is 42.2720, -84.1797.
What county is 49240 in?
49240 spans 2 counties: Jackson County and Washtenaw County. Most of it falls in Jackson 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 49240?
Grass Lake uses area code 517, from NANPA's telephone records.
What time zone is 49240 in?
49240 uses America/Detroit.
How many people live in 49240?
About 8,863 people live in ZIP code 49240, in 3,629 households, at 85.1 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 49240?
$99,681 a year, against $72,875 across Michigan.
What ZIP codes are near 49240?
The closest are 49263 (7.9 mi), 48118 (7.9 mi), 49254 (8 mi), 49261 (8.3 mi) and 49259 (8.6 mi).
Is 49240 a PO Box ZIP code?
49240 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “49240 ZIP Code — Grass Lake, Michigan (Jackson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/49240
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/49240.json Underlying data is public domain or openly licensed — sources, vintages and licences.