Knox
Source:
Illinois
Knox is a smaller county in Illinois with 16 ZIP codes, 52,869 people, and above-median household income among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.
National county placement
According to ACS 5-Year Estimates, Knox, IL sits among US counties with an above-median household income, on a smaller county population base, across a multi-ZIP patchwork.
- Top 42%
- household income vs 3,210 US counties
- 52,869
- combined ZIP population
- 16
- USPS ZIP codes covered
- $70,338
- avg ZIP median income
Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.
Knox lands in the national county income distribution as above-median household income on smaller county footing (FIPS 17095, 16 ZIPs, combined population 52,869). Sort the ZIP table by population before treating the county mean as uniform.
Above-median income across 16 ZIPs means the county average is a compromise. Sort by population, save the largest urban ZIP and one sparse code, then compare - that pair usually shows whether density or income is doing the work inside Knox.
Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.
16
Total ZIPs
52,869
Total Population
ZIP Codes in Knox
Side-by-side: Compare 61401 vs 61410 →
| ZIP Code | City | Population | Density |
|---|---|---|---|
| 61401 | Galesburg | 34,788 | 117 |
| 61410 | Abingdon | 3,912 | 37 |
| 61448 | Knoxville | 3,823 | 35 |
| 61488 | Wataga | 1,120 | 17 |
| 61572 | Yates City | 1,068 | 12 |
| 61467 | Oneida | 1,048 | 8 |
| 61428 | Dahinda | 986 | 12 |
| 61436 | Gilson | 951 | 6 |
| 61489 | Williamsfield | 900 | 8 |
| 61414 | Altona | 854 | 7 |
| 61430 | East Galesburg | 828 | 184 |
| 61458 | Maquon | 822 | 4 |
| 61472 | Rio | 648 | 6 |
| 61485 | Victoria | 560 | 5 |
| 61474 | Saint Augustine | 292 | 4 |
| 61439 | Henderson | 269 | 154 |
Frequently Asked Questions
What is the population of Knox?
Knox has a total population of 52,869 across 16 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Knox?
Knox includes 16 ZIP codes: 61401, 61410, 61448, 61488, 61572, 61467, 61428, 61436, 61489, 61414, and more.