Mark ZIP code, Illinois
The ZIP code for Mark, IL is 61340, and its area codes are 779 and 815.
- USPS city name
- 1 ZIP code
- Overlapping the city
- 2 more
- Population
- 574
- County
- Putnam County
- State
- Illinois
NANPA lists no telephone rate centre for Mark itself, so these are the area codes of the nearest one, Granville (1.7 miles). A town on an area-code boundary can differ from its neighbour.
Mail addressed to Mark uses the ZIP code above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.
Mark in numbers
About 574 people live in Mark, in 270 households. The median household income is $79,063 a year, 5% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $161,600 (39% below the Illinois median), and median gross rent is $938 a month. The median age is 45.0; 22.1% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 20 minutes.
| Population | 574 |
|---|---|
| Households | 270 |
| Median age | 45.0 |
| Median household income | $79,063 |
| Median home value | $161,600 |
| Median gross rent | $938 |
| Bachelor's degree or higher | 22.1% |
| Mean commute | 19.8 min |
| Population density | 539 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Mark village. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Mark
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
61340 | Mark , IL | Standard | 545 | $78,750 | $160,100 |
Other ZIP codes overlapping Mark
These ZIP codes cover part of Mark but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
61326 | Granville , IL | Standard | 1,953 | $70,880 | $148,100 |
61327 | Hennepin , IL | Standard | 1,442 | $89,306 | $211,300 |
Map of Mark ZIP codes
The ZIP codes of Mark, IL, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Mark
The nearest larger towns are Granville (1,472 people, 1.3 mi), Hennepin (929 people, 3.2 mi) and De Pue (1,532 people, 5.3 mi).
| Town | Population | Distance |
|---|---|---|
| Spring Valley | 5,476 | 5.6 mi |
| Peru | 9,775 | 8.9 mi |
| LaSalle | 9,498 | 9.6 mi |
| Oglesby | 3,570 | 9.8 mi |
| Princeton | 7,975 | 13.6 mi |
| Mendota | 6,994 | 21.9 mi |
| Ottawa | 18,447 | 23.3 mi |
| Streator | 12,330 | 24.1 mi |
| Chillicothe | 5,900 | 27.2 mi |
| Marseilles | 4,279 | 29.8 mi |
More nearby: every ZIP code in Putnam County · Illinois ZIP codes
Cite this page
zipcodes.pro. “Mark, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/mark
Underlying data is public domain or openly licensed — sources, vintages and licences.