Knox County, IL ZIP Codes
22 ZIP codes cover all or part of Knox County, Illinois. The Census Bureau counts 49,046 residents in the county, with a median household income of $57,030 and a median home value of $111,900. Median household income ranges from $50,546 in 61401 to $88,472 in 61467. Its largest communities include Galesburg, Abingdon, Knoxville, Oak Run and Oneida.
Knox County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 49,046 |
| Households | 20,972 |
| Median household income | $57,030 |
| Median home value | $111,900 |
| Median age | 42.6 |
| Median rent | $788 |
All 22 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 57,397 |
| Households (sum of ZIP codes) | 24,483 |
| Median household income, range across ZIP codes | $50,546 (61401) to $88,472 (61467) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $57,684 |
| Homeowners | 72.3% |
| Households with kids under 18 | 23.4% |
| Moved in the past year | 9.8% |
| Carrier routes in EDDM2GO's route library | 31 routes, 7,523 homes (14 of 22 ZIP codes) |
Top facts
- Highest median household income in Knox County: 61467 ($88,472)
- Most residents: 61401 (30,580 people)
- Highest homeownership: 61428 (95.4% own their home)
- Most households with kids: 61467 (39.9% of households)
- Most new movers: 61402 (22.9% moved in last year)
- Youngest median age: 61410 (38.3 years)
- Highest median home value: 61428 ($285,100)
Every ZIP code in Knox 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% | — | — | 80% of its land |
| 61448 | Knoxville | 3,947 | 1,736 | $82,500 | $146,100 | 86.6% | 25.9% | 9.8% | 4 | 1,641 | 100% of its land |
| 61410 | Abingdon | 3,838 | 1,663 | $62,925 | $104,300 | 72.7% | 24.6% | 5.6% | 5 | 1,622 | 72% of its land |
| 61531 | Farmington | 3,007 | 1,221 | $70,107 | $127,700 | 80.0% | 28.7% | 9.1% | — | — | 23% of its land |
| 61434 | Galva | 2,971 | 1,207 | $56,780 | $100,100 | 79.8% | 28.2% | 5.6% | 5 | 1,429 | 25% of its land |
| 61402 | Galesburg | 1,623 | 0 | — | — | — | — | 22.9% | — | — | 100% of its land |
| 61428 | Dahinda | 1,278 | 542 | $77,143 | $285,100 | 95.4% | 27.1% | 7.4% | 3 | 572 | 100% of its land |
| 61467 | Oneida | 1,159 | 393 | $88,472 | $136,700 | 87.5% | 39.9% | 1.1% | — | — | 100% of its land |
| 61488 | Wataga | 1,084 | 486 | $68,333 | $112,900 | 80.7% | 24.3% | 5.9% | 2 | 314 | 100% of its land |
| 61490 | Woodhull | 1,035 | 509 | $65,625 | $158,000 | 76.8% | 15.9% | 8.3% | 2 | 268 | 13% of its land |
| 61489 | Williamsfield | 820 | 340 | $98,125 | $148,500 | 95.3% | 27.9% | 6.4% | — | — | 97% of its land |
| 61544 | London Mills | 784 | 260 | $81,250 | $95,900 | 87.3% | 35.8% | 6.9% | 1 | 195 | 30% of its land |
| 61436 | Gilson | 745 | 332 | $76,000 | $205,000 | 87.0% | 15.7% | 3.8% | 2 | 318 | 100% of its land |
| 61572 | Yates City | 732 | 343 | $73,125 | $116,100 | 81.9% | 19.0% | 4.5% | 1 | 346 | 100% of its land |
| 61430 | East Galesburg | 713 | 318 | $79,333 | $123,700 | 83.6% | 23.0% | 5.1% | 1 | 296 | 100% of its land |
| 61414 | Altona | 696 | 332 | $48,929 | $134,400 | 95.2% | 15.7% | 0.9% | 1 | 162 | 79% of its land |
| 61458 | Maquon | 656 | 329 | $65,461 | $77,300 | 83.0% | 17.9% | 5.3% | 2 | 260 | 100% of its land |
| 61472 | Rio | 453 | 178 | $76,500 | $150,000 | 86.5% | 28.7% | 2.3% | 1 | 240 | 99% of its land |
| 61485 | Victoria | 417 | 149 | $59,306 | $106,100 | 91.9% | 31.5% | 1.9% | — | — | 100% of its land |
| 61449 | La Fayette | 339 | 205 | $51,635 | $66,100 | 94.1% | 11.7% | 1.5% | — | — | 31% of its land |
| 61439 | Henderson | 299 | 123 | $59,125 | $113,900 | 69.9% | 38.2% | 21.1% | — | — | 100% of its land |
| 61474 | Saint Augustine | 221 | 123 | $59,583 | $79,100 | 93.5% | 8.1% | 0.0% | 1 | 127 | 76% of its land |
A ZIP code is listed for Knox 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
- Galesburg — 29,481 residents · 2 ZIP codes
- Abingdon — 3,443 residents · 1 ZIP code
- Knoxville — 3,211 residents · 1 ZIP code
- Oak Run — 800 residents · 1 ZIP code
- Oneida — 719 residents · 1 ZIP code
- East Galesburg — 713 residents · 1 ZIP code
- Wataga — 710 residents · 1 ZIP code
- Williamsfield — 531 residents · 1 ZIP code
- Yates City — 500 residents · 1 ZIP code
- Altona — 498 residents · 1 ZIP code
- Henderson — 284 residents · 2 ZIP codes
- Victoria — 254 residents · 1 ZIP code
- Rio — 205 residents · 1 ZIP code
- Maquon — 161 residents · 1 ZIP code
- Gilson — 120 residents · 1 ZIP code
- St. Augustine — 92 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Knox County — 9 ZIP codes ranked
- ZIP codes with the highest home values in Knox County — 9 ZIP codes ranked
- ZIP codes with the highest homeownership in Knox County — 9 ZIP codes ranked
- ZIP codes with the most families with kids in Knox County — 9 ZIP codes ranked
- ZIP codes with the most new movers in Knox County — 10 ZIP codes ranked
- Youngest ZIP codes in Knox County — 10 ZIP codes ranked
- Oldest ZIP codes in Knox County — 10 ZIP codes ranked
- Fastest-growing ZIP codes in Knox County — 9 ZIP codes ranked
Price a mailing to Knox County ZIP codes
EDDM guides
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Frequently asked questions
- What ZIP codes are in Knox County, IL?
- 61401, 61448, 61410, 61531, 61434, 61402, 61428, 61467, 61488, 61490, 61489, 61544, 61436, 61572, 61430, 61414, 61458, 61472, 61485, 61449, 61439 and 61474. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Knox County?
- 49,046 residents in 20,972 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Knox County?
- $57,030 for the county as a whole. Its ZIP codes range from $50,546 (61401) to $88,472 (61467).
- Which Knox County ZIP code has the highest median household income?
- 61467, at $88,472, among ZIP codes with at least 1,000 residents. See the full ranking of Knox County ZIP codes by income.
- How many carrier routes and mailboxes are in Knox County?
- For the 14 of 22 ZIP codes in EDDM2GO's stored route library: 31 carrier routes reaching 7,523 residential and 267 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.