Knox County, IN ZIP Codes

12 ZIP codes cover all or part of Knox County, Indiana. The Census Bureau counts 36,007 residents in the county, with a median household income of $61,237 and a median home value of $137,700. Median household income ranges from $45,911 in 47561 to $84,375 in 47557. Its largest communities include Vincennes, Bicknell, Oaktown, Freelandville and Monroe City.

Knox County (Census county figures)

MeasureCensus figure
Residents36,007
Households15,169
Median household income$61,237
Median home value$137,700
Median age39
Median rent$796

All 12 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)36,177
Households (sum of ZIP codes)15,283
Median household income, range across ZIP codes$45,911 (47561) to $84,375 (47557)
Household-weighted average of ZIP medians (an approximation, not a true median)$61,335
Homeowners68.1%
Households with kids under 1828.1%
Moved in the past year12.6%
Carrier routes in EDDM2GO's route library9 routes, 2,576 homes (5 of 12 ZIP codes)

Top facts

Every ZIP code in Knox County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
47591Vincennes25,16810,487$61,803$157,40064.5%29.8%13.5%——100% of its land
47512Bicknell4,2431,824$57,857$71,80068.8%28.2%15.4%51,625100% of its land
47561Oaktown1,442673$45,911$77,50070.1%16.9%10.8%——94% of its land
47557Monroe City1,345513$84,375$151,60077.4%33.9%7.3%——100% of its land
47516Bruceville988439$76,250$182,30086.6%31.2%7.9%1439100% of its land
47535Freelandville807307$70,236$92,00070.4%20.5%6.9%——100% of its land
47597Wheatland745343$56,953$129,30084.5%19.8%6.7%——100% of its land
47578Sandborn566290$56,641$112,30091.4%16.9%3.0%119767% of its land
47528Edwardsport457200$57,692$77,60087.5%21.5%6.2%1288100% of its land
47524Decker302140——96.4%7.9%6.0%1123100% of its land
47596Westphalia9459$93,958$92,90074.6%0.0%0.0%——100% of its land
47573Ragsdale208——100.0%0.0%0.0%——100% 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

Price a mailing to Knox County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Knox County, IN?
47591, 47512, 47561, 47557, 47516, 47535, 47597, 47578, 47528, 47524, 47596 and 47573. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Knox County?
36,007 residents in 15,169 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Knox County?
$61,237 for the county as a whole. Its ZIP codes range from $45,911 (47561) to $84,375 (47557).
Which Knox County ZIP code has the highest median household income?
47557, at $84,375, among ZIP codes with at least 1,000 residents.
How many carrier routes and mailboxes are in Knox County?
For the 5 of 12 ZIP codes in EDDM2GO's stored route library: 9 carrier routes reaching 2,576 residential and 96 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.