County · Indiana

Knox County, Indiana

Knox County, Indiana. Knox County had 35,652 residents in 2025 by the Census Bureau's estimate, down 1.7% since 2020, while Indiana grew 2.8%. It holds 23 places (9 cities, villages and boroughs, 10 towns and townships and 4 census-designated) and 11 census tracts. GEOID 18083.

Knox County is the county of the Vincennes, IN micropolitan statistical area (the Census Bureau's July 2023 delineation).

Residents, July 2025 estimate

35,652

Census Bureau estimate (no margin published)
2020 Census count: 36,282 · ACS 2020-2024: 36,007

Median household income

$61,237

±$4,302 (90% margin)
Indiana: $71,957

Median home value

$137,700

±$11,734 (90% margin)
Indiana: $218,200

Median gross rent

$796

±$45 (90% margin)
Indiana: $1,062

How many people live in Knox County, and is it growing?

The 2020 Census counted 36,282 residents in Knox County. The Census Bureau estimates 35,652 for July 1, 2025, down 1.7% since 2020, while Indiana grew 2.8%. The 2020-2024 American Community Survey puts the population at 36,007 over 516 square miles of land.

July 2020→2021 −289 (35,964)
2021→2022 −110 (35,854)
2022→2023 +107 (35,961)
2023→2024 −204 (35,757)
2024→2025 −105 (35,652)

Knox County in Indiana. Boundaries: Census Bureau 2024.

Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
Measure	Knox County	Indiana	Change since 2015-2019
Total population	36,007	6,851,073	−1,058
Households	15,169±335	2,716,009	no clear change
Average household size	2.26±0.05	2.46	no clear change
Housing units	16,974±35	2,976,568	no clear change

Knox County's population since 2000

From 39,256 in 2000 to 35,652 in 2025: down 9.2%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.

2000 Census 39,256
2005 (estimate) 38,543
2010 Census 38,440
2015 (estimate) 37,784
2020 Census 36,282
2025 (estimate) 35,652

Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov

What cities and towns are in Knox County?

Knox County holds 23 places: 9 cities, villages and boroughs (incorporated places), 10 towns and townships (county subdivisions with their own government) and 4 census-designated places. The largest is Vincennes Township with 21,431 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.

Places in Knox County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.

Vincennes Township	township	21,899	21,685±31	$58,588	$143,100	16.3%	100%
Vincennes	city	16,759	16,586±41	$53,637	$111,600	19.6%	100%
Vigo Township	township	4,083	4,051±21	$59,120	$73,800	9.7%	100%
Bicknell	city	3,029	3,017±338	$52,188	$66,300	14.2%	100%
Washington Township, Knox County	township	2,256	2,368±340	$51,786	$141,200	11.4%	100%
Harrison Township, Knox County	township	1,921	1,793±421	$87,563	$156,600	15.1%	100%
Palmyra TownshipGEOID 1808357744	township	1,512	1,388±353	$98,705	$241,800	2.1%	100%
Busseron Township	township	1,268	1,369±289	$45,521	$78,000	13.4%	100%
Johnson Township, Knox CountyGEOID 1808338700	township	1,237	1,388±334	$113,674	$246,700	1.5%	100%
Widner TownshipGEOID 1808384158	township	1,094	1,028±331	$70,236	$96,800	12.3%	100%
Steen Township	township	803	672±191	$54,680	$120,000	8.9%	100%
FreelandvilleGEOID 1825810	CDP	617	807±312	$70,236	$92,000	12.8%	100%
Oaktown	town	581	860±255	$38,333	$65,200	3.6%	100%
Monroe CityGEOID 1850526	town	502	767±312	$56,094	$144,800	28.7%	100%
Bruceville	town	450	446±155	$55,000	$92,700	12.1%	100%
Wheatland	town	390	349±87	$42,344	$83,300	14.9%	100%
Sandborn	town	359	339±103	$61,125	$94,400	6.2%	100%
Edwardsport	town	286	337±101	$51,667	$58,800	15.2%	100%
Decker TownshipGEOID 1808317128	township	209	265±183	not published	$177,800	27.9%	100%
DeckerGEOID 1817110	town	199	174±72	not published	$34,700	12.1%	100%
WestphaliaGEOID 1883204	CDP	181	47±40	not published	not published	0.0%	100%
EmisonGEOID 1821124	CDP	145	76±33	not published	$165,200	13.2%	100%
RagsdaleGEOID 1862730	CDP	119	88±73	$27,708	$63,900	77.3%	100%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov

Who lives in Knox County?

The median resident of Knox County is 39.0 years old; 21.6% are under 18 and 19.1% are 65 or older. The largest group is non-Hispanic white residents at 89.4%, then non-Hispanic residents of two or more races at 4.8%. 1.9% of residents were born outside the United States.

Age, origin and education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
Measure	Knox County	Indiana	Change since 2015-2019
Median age	39.0±0.9	38.1	+1.1
Under 18 years	21.6%±0.3 pts	23.3%	–
65 years and over	19.1%±0.4 pts	16.8%	–
Hispanic or Latino (any race)	3.0%	8.6%	+1.0 pts
White alone, not Hispanic	89.4%±0.8 pts	75.4%	−3.3 pts
Black or African American alone, not Hispanic	1.7%±0.5 pts	9.1%	−1.1 pts
Asian alone, not Hispanic	0.9%±1.0 pts	2.6%	–
American Indian and Alaska Native alone, not Hispanic	0.0%±0.1 pts	0.1%	–
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0.0%±0.1 pts	0.0%	–
Two or more races, not Hispanic	4.8%±1.3 pts	3.8%	–
Some other race alone, not Hispanic	0.1%±0.2 pts	0.4%	–
Born outside the United States	1.9%±0.5 pts	6.3%	+0.6 pts
Speak a language other than English at home (age 5+)	4.0%±1.2 pts	10.3%	–
Civilian veterans (age 18+)	6.4%±0.9 pts	6.3%	–
With a disability	19.2%±2.0 pts	14.2%	–
No health insurance coverage	6.0%±1.1 pts	7.4%	−1.7 pts
High school graduate or higher (age 25+)	89.5%±1.8 pts	90.4%	–
Bachelor's degree or higher (age 25+)	19.1%±1.8 pts	29.5%	no clear change
Graduate or professional degree (age 25+)	7.0%±1.3 pts	10.8%	–
Moved from another state in the past year	1.9%±0.7 pts	2.1%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Knox County earn?

Half of Knox County's 15,169 households earn less than $61,237 a year (±$4,302), against $71,957 in Indiana. In 2015-2019 it was $58,310 in 2024 dollars; the margins of error cannot tell the two periods apart. 13.7% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure	Knox County	Indiana	Change since 2015-2019
Median household income	$61,237±$4,302	$71,957	no clear change
Mean household income	$81,626±$5,452	$95,247	–
Per capita income	$34,279±$2,172	$38,351	no clear change
People below the poverty line	13.7%±2.0 pts	12.3%	no clear change
Children under 18 below the poverty line	15.2%±4.4 pts	16.0%	no clear change
Households receiving SNAP	12.9%±2.1 pts	9.1%	–
Households with a broadband subscription	88.2%±1.5 pts	89.9%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Knox County?

Owners occupy 67.8% of Knox County's occupied homes and renters 32.2%. The median owner-occupied home is valued at $137,700 by its owner (±$11,734). The median renter pays $796 a month including utilities, and 29.1% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
Measure	Knox County	Indiana	Change since 2015-2019
Median home value (owner-occupied)	$137,700±$11,734	$218,200	+$18,569
Median gross rent	$796±$45	$1,062	no clear change
Renters paying 35% or more of income on rent	29.1%±5.5 pts	38.9%	no clear change
Median monthly owner costs, with a mortgage	$1,152±$54	$1,404	–
Owner-occupied homes	67.8%±2.4 pts	70.6%	no clear change
Housing units	16,974±35	2,976,568	no clear change
Homeowner vacancy rate	0.6%±0.7 pts	0.8%	–
Rental vacancy rate	3.9%±2.0 pts	5.6%	–
Single-family detached homes	74.8%±2.2 pts	72.6%	–
Mobile homes	4.5%±1.1 pts	4.4%	–
Built 2020 or later	1.2%±0.5 pts	1.7%	–
Built 1939 or earlier	30.8%±2.6 pts	16.0%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How many new homes is Knox County building?

Builders took permits for 39 new housing units across Knox County in 2025 (39 single-family), 1.1 per 1,000 residents.

2019 35 units
2020 61 units
2021 43 units
2022 30 units
2023 41 units
2024 36 units
2025 39 units

Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey

How do people in Knox County get to work?

84.5% of Knox County's workers drive alone and 2.3% work from home. The average trip to work takes 19.7 minutes. The unemployment rate in 2020-2024 averaged 3.1%.

Work and commuting, ACS 2020-2024 5-year estimates
Measure	Knox County	Indiana	Change since 2015-2019
In the labor force (age 16+)	61.4%±2.1 pts	63.8%	–
Unemployment rate	3.1%±1.2 pts	4.3%	no clear change
Drove alone to work	84.5%±1.9 pts	76.3%	–
Carpooled	8.5%±1.6 pts	9.1%	–
Public transportation	0.3%±0.3 pts	0.6%	–
Walked	3.8%±0.9 pts	1.9%	–
Worked from home	2.3%±0.7 pts	10.7%	no clear change
Mean travel time to work	19.7 min±1.1	24.1 min	no clear change

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What are Knox County's census tracts?

Knox County is divided into 11 census tracts. Among those with a reliable estimate, median household income runs from $41,303 (Tract 9553) to $96,979 (Tract 9552.02).

Census tracts of Knox County, ACS 2020-2024 5-year estimates; sort by any column

Tract 955018083955000	Bicknell (90%)	3,182	3,098±314	$53,294	$64,400	$852	12.3%
Tract 955118083955100	Sandborn (10%)	2,814	3,068±464	$68,884	$100,800	$689	10.8%
Tract 9552.0118083955201	Oaktown (20%)	1,953	2,107±302	$46,690	$105,200	$723	9.4%
Tract 9552.0218083955202	Bruceville (20%)	3,968	3,904±448	$96,979	$262,100	$942	4.2%
Tract 955318083955300	Vincennes (96%)	2,906	2,826±354	$41,303	$56,000	$689	28.5%
Tract 955418083955400	Vincennes	2,091	2,201±408	$48,632	$103,500	$785	24.8%
Tract 955518083955500	Vincennes (94%)	2,962	3,106±399	$62,842	$108,500	$791	17.4%
Tract 955618083955600	Vincennes	2,840	2,734±408	$45,236	$90,900	$788	14.9%
Tract 955718083955700	Vincennes (74%)	4,768	4,527±618	$64,074	$164,900	$832	9.7%
Tract 955818083955800	Monroe City (13%)	3,376	3,000±405	$78,750	$157,000	$869	11.6%
Tract 955918083955900	Vincennes (11%)	5,422	5,436±557	$68,947	$214,400	$610	16.8%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

How does Knox County compare with Indiana's other counties?

Knox County's rank among Indiana's counties with a reliable estimate (1 = highest)
Measure	Rank
Population	44th of 92
Growth 2020-2025	86th of 92
Residents per square mile	59th of 92
Median household income	76th of 92
Median home value	82nd of 92
Median gross rent	72nd of 92
Poverty rate	27th of 92
Bachelor's degree or higher	55th of 92
Median age	70th of 92

Every county in Indiana

Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections

Not on this page: crime, weather and schools for Knox County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.