County ProfileIN
Knox County
Population: 36,282 · 12 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
36,282
People
Median age
39
Housing
Total households
15,169
Income
Median household income
$61,237
Housing
Total housing units
16,974
Employment
Employment rate
59.5%
Education
Bachelor’s degree or higher
19.1%
Healthcare
Insured population
94%
County details
Local time 03:16:30(ET)| Name | Knox |
|---|---|
| Total ZIP codes | 12total |
| ZIP codes (by type) | 10 Standard2 PO Box |
| Area code | 812, 930 |
| Timezone | Eastern Time (ET) |
| Coordinates | 38.688381, -87.4203583 |
| Land area | 515.8 sq miles(1,336 km²) |
Map of Knox county, Indiana with ZIP codes
Cities and Communities in Knox County
Compare the largest cities in Knox County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Vincennes | 16,759 | $53,637 | 1ZIPs |
| Bicknell | 3,029 | $52,188 | 1ZIPs |
| Monroe City | 885 | $74,063 | 1ZIPs |
| Freelandville | 617 | $70,236 | 1ZIPs |
| Oaktown | 581 | $38,333 | 1ZIPs |
| Bruceville | 450 | $55,000 | 1ZIPs |
| Wheatland | 390 | $42,344 | 1ZIPs |
| Sandborn | 359 | $61,125 | 1ZIPs |
| Edwardsport | 286 | $51,667 | 1ZIPs |
| Decker | 199 | — | 1ZIPs |
| Westphalia | 181 | — | 1ZIPs |
| Ragsdale | 119 | $27,708 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Knox County
Review the most populated postal areas across Knox County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 47591 | Vincennes | $61,803 | 24,984 |
| 47512 | Bicknell | $57,857 | 4,002 |
| 47561 | Oaktown | $45,911 | 1,514 |
| 47557 | Monroe City | $84,375 | 1,329 |
| 47516 | Bruceville | $76,250 | 1,246 |
| 47597 | Wheatland | $56,953 | 961 |
| 47578 | Sandborn | $56,641 | 649 |
| 47535 | Freelandville | $70,236 | 582 |
| 47528 | Edwardsport | $57,692 | 519 |
| 47524 | Decker | — | 494 |
| 47596 | Westphalia | $93,958 | 191 |
| 47573 | Ragsdale | — | 31 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS