Monmouth, IL ZIP Codes
One ZIP code serves Monmouth, Illinois: 61462. Together they are home to 10,458 residents in 4,239 households.
Monmouth city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 8,581 |
| Households | 3,323 |
| Median household income | $61,138 |
| Median home value | $86,800 |
| Median age | 34.1 |
| Median rent | $733 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 10,458 |
| Households (sum of ZIP codes) | 4,239 |
| Median household income, range across ZIP codes | $64,113 (61462) to $64,113 (61462) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $64,113 |
| Homeowners | 71.5% |
| Households with kids under 18 | 27.5% |
| Moved in the past year | 14.2% |
| Carrier routes in EDDM2GO's route library | 10 routes, 4,390 homes (1 of 1 ZIP codes) |
Every ZIP code in Monmouth
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 61462 | Monmouth | 10,458 | 4,239 | $64,113 | $102,900 | 71.5% | 27.5% | 14.2% | 10 | 4,706 | 3% of its land; mailing city |
A ZIP code is listed for Monmouth when at least 10% of its land lies inside Monmouth city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Monmouth. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Monmouth.
Counties
- Warren County — 14 ZIP codes
Price a mailing to Monmouth ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Monmouth, IL?
- 61462. A ZIP code is listed for Monmouth when at least 10% of its land lies inside Monmouth city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Monmouth.
- What is the population of Monmouth, IL?
- The Census Bureau counts 8,581 residents inside Monmouth city limits (ACS 2020–2024). The 1 ZIP code that serve Monmouth hold 10,458 residents in all.
- What is the median household income in Monmouth, IL?
- $61,138 inside Monmouth city limits, per the Census Bureau. Across its ZIP codes the medians run from $64,113 to $64,113.
- How many carrier routes and mailboxes are in Monmouth, IL?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 10 carrier routes reaching 4,390 residential and 318 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.