Warren County, IL ZIP Codes
14 ZIP codes cover all or part of Warren County, Illinois. The Census Bureau counts 16,447 residents in the county, with a median household income of $67,385 and a median home value of $105,000. Median household income ranges from $50,546 in 61401 to $82,583 in 61447. Its largest communities include Monmouth, Roseville, Kirkwood, Little York and Cameron.
Warren County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 16,447 |
| Households | 6,787 |
| Median household income | $67,385 |
| Median home value | $105,000 |
| Median age | 38.5 |
| Median rent | $788 |
All 14 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 52,615 |
| Households (sum of ZIP codes) | 22,906 |
| Median household income, range across ZIP codes | $50,546 (61401) to $82,583 (61447) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $56,346 |
| Homeowners | 68.7% |
| Households with kids under 18 | 24.3% |
| Moved in the past year | 11.4% |
| Carrier routes in EDDM2GO's route library | 19 routes, 6,603 homes (5 of 14 ZIP codes) |
Top facts
- Highest median household income in Warren County: 61447 ($82,583)
- Most residents: 61401 (30,580 people)
- Highest homeownership: 61415 (88.9% own their home)
- Most households with kids: 61447 (37.3% of households)
- Most new movers: 61412 (15.3% moved in last year)
- Youngest median age: 61447 (36.6 years)
- Highest median home value: 61412 ($117,600)
Every ZIP code in Warren County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 61401 | Galesburg | 30,580 | 13,694 | $50,546 | $100,600 | 63.9% | 22.0% | 11.8% | — | — | 20% of its land |
| 61462 | Monmouth | 10,458 | 4,239 | $64,113 | $102,900 | 71.5% | 27.5% | 14.2% | 10 | 4,706 | 96% of its land |
| 61410 | Abingdon | 3,838 | 1,663 | $62,925 | $104,300 | 72.7% | 24.6% | 5.6% | 5 | 1,622 | 28% of its land |
| 61415 | Avon | 1,459 | 682 | $68,036 | $113,300 | 88.9% | 22.1% | 9.3% | — | — | 37% of its land |
| 61412 | Alexis | 1,392 | 558 | $82,143 | $117,600 | 87.5% | 30.6% | 15.3% | 2 | 455 | 45% of its land |
| 61473 | Roseville | 1,279 | 572 | $60,833 | $108,100 | 70.8% | 28.3% | 8.8% | — | — | 100% of its land |
| 61447 | Kirkwood | 1,020 | 405 | $82,583 | $95,900 | 81.2% | 37.3% | 10.2% | — | — | 69% of its land |
| 61453 | Little York | 677 | 279 | $58,281 | $87,500 | 86.4% | 26.2% | 9.5% | — | — | 58% of its land |
| 61423 | Cameron | 638 | 279 | $78,594 | $123,500 | 75.6% | 26.2% | 3.9% | — | — | 100% of its land |
| 61478 | Smithshire | 420 | 148 | $75,625 | $103,600 | 100.0% | 84.5% | 0.0% | 1 | 101 | 86% of its land |
| 61435 | Warren County | 271 | 87 | — | — | 43.7% | 54.0% | 12.5% | — | — | 100% of its land |
| 61474 | Saint Augustine | 221 | 123 | $59,583 | $79,100 | 93.5% | 8.1% | 0.0% | 1 | 127 | 17% of its land |
| 61417 | Berwick | 182 | 83 | $105,724 | $107,200 | 100.0% | 0.0% | 0.0% | — | — | 100% of its land |
| 61475 | Sciota | 180 | 94 | $85,000 | $141,100 | 86.2% | 20.2% | 2.9% | — | — | 12% of its land |
A ZIP code is listed for Warren County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Monmouth — 8,581 residents · 1 ZIP code
- Roseville — 823 residents · 1 ZIP code
- Kirkwood — 754 residents · 1 ZIP code
- Little York — 379 residents · 1 ZIP code
- Cameron — 280 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Warren County — 7 ZIP codes ranked
- ZIP codes with the highest home values in Warren County — 7 ZIP codes ranked
- ZIP codes with the highest homeownership in Warren County — 7 ZIP codes ranked
- ZIP codes with the most families with kids in Warren County — 7 ZIP codes ranked
- ZIP codes with the most new movers in Warren County — 7 ZIP codes ranked
- Youngest ZIP codes in Warren County — 7 ZIP codes ranked
- Oldest ZIP codes in Warren County — 7 ZIP codes ranked
- Fastest-growing ZIP codes in Warren County — 7 ZIP codes ranked
Price a mailing to Warren County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Warren County, IL?
- 61401, 61462, 61410, 61415, 61412, 61473, 61447, 61453, 61423, 61478, 61435, 61474, 61417 and 61475. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Warren County?
- 16,447 residents in 6,787 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Warren County?
- $67,385 for the county as a whole. Its ZIP codes range from $50,546 (61401) to $82,583 (61447).
- Which Warren County ZIP code has the highest median household income?
- 61447, at $82,583, among ZIP codes with at least 1,000 residents. See the full ranking of Warren County ZIP codes by income.
- How many carrier routes and mailboxes are in Warren County?
- For the 5 of 14 ZIP codes in EDDM2GO's stored route library: 19 carrier routes reaching 6,603 residential and 410 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.