Mark, IL ZIP Codes
3 ZIP codes serve Mark, Illinois: 61326, 61327 and 61340. Together they are home to 3,940 residents in 1,668 households. That is more than the 574 people counted inside Mark village limits, because these ZIP codes reach past its boundary. Median household income ranges from $70,880 in 61326 to $89,306 in 61327.
Mark village limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 574 |
| Households | 270 |
| Median household income | $79,063 |
| Median home value | $161,600 |
| Median age | 45 |
| Median rent | $938 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 3,940 |
| Households (sum of ZIP codes) | 1,668 |
| Median household income, range across ZIP codes | $70,880 (61326) to $89,306 (61327) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $78,536 |
| Homeowners | 78.5% |
| Households with kids under 18 | 31.3% |
| Moved in the past year | 10.0% |
| Carrier routes in EDDM2GO's route library | 2 routes, 660 homes (1 of 3 ZIP codes) |
Top facts
- Highest median household income in Mark: 61327 ($89,306)
- Most residents: 61326 (1,953 people)
- Highest homeownership: 61327 (83.6% own their home)
- Most households with kids: 61327 (32.5% of households)
- Most new movers: 61326 (13.9% moved in last year)
- Youngest median age: 61326 (43.4 years)
- Highest median home value: 61327 ($211,300)
Every ZIP code in Mark
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 61326 | Granville | 1,953 | 823 | $70,880 | $148,100 | 76.5% | 28.4% | 13.9% | 2 | 670 | 0% of its land |
| 61327 | Hennepin | 1,442 | 585 | $89,306 | $211,300 | 83.6% | 32.5% | 5.6% | — | — | 1% of its land |
| 61340 | Mark | 545 | 260 | $78,750 | $160,100 | 73.5% | 38.1% | 7.5% | — | — | 74% of its land; mailing city |
A ZIP code is listed for Mark when at least 10% of its land lies inside Mark village limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Mark. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Mark.
Counties
- Putnam County — 7 ZIP codes
Price a mailing to Mark ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Mark, IL?
- 61326, 61327 and 61340. A ZIP code is listed for Mark when at least 10% of its land lies inside Mark village limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Mark.
- What is the population of Mark, IL?
- The Census Bureau counts 574 residents inside Mark village limits (ACS 2020–2024). The 3 ZIP codes that serve Mark hold 3,940 residents in all.
- What is the median household income in Mark, IL?
- $79,063 inside Mark village limits, per the Census Bureau. Across its ZIP codes the medians run from $70,880 to $89,306.
- Which Mark ZIP code has the highest median household income?
- 61327, at $89,306, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Mark, IL?
- For the 1 of 3 ZIP codes in EDDM2GO's stored route library: 2 carrier routes reaching 660 residential and 10 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.