County · Indiana

Grant County, Indiana

Grant County, Indiana. Grant County had 66,524 residents in 2025 by the Census Bureau's estimate, down 0.2% since 2020, while Indiana grew 2.8%. It holds 30 places (11 cities, villages and boroughs, 13 towns and townships and 6 census-designated) and 16 census tracts. GEOID 18053.

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

Residents, July 2025 estimate

66,524

Census Bureau estimate (no margin published)
2020 Census count: 66,674 · ACS 2020-2024: 66,295

Median household income

$53,522

±$3,012 (90% margin)
Indiana: $71,957

Median home value

$122,300

±$4,945 (90% margin)
Indiana: $218,200

Median gross rent

$853

±$44 (90% margin)
Indiana: $1,062

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

The 2020 Census counted 66,674 residents in Grant County. The Census Bureau estimates 66,524 for July 1, 2025, down 0.2% since 2020, while Indiana grew 2.8%. The 2020-2024 American Community Survey puts the population at 66,295 over 414 square miles of land.

July 2020→2021 −353 (66,152)
2021→2022 −252 (65,900)
2022→2023 +288 (66,188)
2023→2024 +48 (66,236)
2024→2025 +288 (66,524)

Grant County in Indiana. Boundaries: Census Bureau 2024.

Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
Measure	Grant County	Indiana	Change since 2015-2019
Total population	66,295	6,851,073	−157
Households	26,773±432	2,716,009	no clear change
Average household size	2.28±0.04	2.46	no clear change
Housing units	29,907±114	2,976,568	−580

Grant County's population since 2000

From 73,403 in 2000 to 66,524 in 2025: down 9.4%. 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 73,403
2005 (estimate) 70,803
2010 Census 70,061
2015 (estimate) 67,543
2020 Census 66,674
2025 (estimate) 66,524

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 Grant County?

Grant County holds 30 places: 11 cities, villages and boroughs (incorporated places), 13 towns and townships (county subdivisions with their own government) and 6 census-designated places. The largest is Marion, Grant County with 28,234 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 Grant County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.

Marion, Grant County	city	28,310	27,531±646	$43,343	$85,300	29.6%	100%
Center Township, Grant County	township	21,583	21,543±42	$42,698	$83,500	31.7%	100%
Mill Township	township	10,497	10,386±32	$56,280	$120,100	15.5%	100%
Franklin Township, Grant County	township	7,082	7,041±25	$45,345	$87,800	24.0%	100%
Pleasant Township, Grant County	township	7,023	6,970±41	$59,194	$165,700	13.4%	100%
Gas City	city	6,157	6,076±17	$55,982	$119,300	16.8%	100%
Jefferson Township, Grant County	township	5,682	5,670±39	$70,694	$192,200	9.2%	100%
Fairmount Township	township	3,986	3,961±24	$66,078	$117,400	21.7%	100%
Upland	town	3,821	3,918±289	$83,839	$203,200	9.7%	100%
Washington Township, Grant County	township	3,433	3,410±18	$51,014	$153,100	6.6%	100%
Fairmount	town	2,682	2,662±323	$51,739	$103,200	25.7%	100%
Van Buren Township, Grant County	township	1,836	1,664±336	$54,960	$104,200	23.9%	100%
Sims Township	township	1,692	1,514±317	$74,717	$163,900	7.0%	100%
Monroe Township, Grant County	township	1,649	1,786±394	$70,175	$225,100	3.0%	100%
Jonesboro	city	1,516	1,578±306	$45,833	$79,500	16.3%	100%
Sweetser	town	1,075	1,061±369	$80,625	$153,400	11.8%	100%
Swayzee	town	918	846±196	$65,391	$121,000	10.8%	100%
Liberty Township, Grant CountyGEOID 1805343272	township	898	823±261	$91,483	$168,200	8.7%	100%
Richland Township, Grant CountyGEOID 1805364062	township	887	1,138±303	$95,635	$220,000	10.5%	100%
Van Buren	town	790	782±208	$47,692	$69,800	19.7%	100%
Matthews	town	494	501±153	$50,048	$80,100	15.5%	100%
Green Township, Grant CountyGEOID 1805329124	township	426	389±154	$81,458	$163,000	0.0%	100%
Fowlerton	town	268	185±69	$52,679	$91,900	21.1%	100%
Converse	town	1,161	813±214	$65,536	$103,800	18.9%	22%
JalapaGEOID 1837674	CDP	182	52±55	not published	not published	0.0%	100%
SimsGEOID 1869894	CDP	164	98±72	not published	$115,000	15.3%	100%
LandessGEOID 1841994	CDP	153	22±35	not published	not published	0.0%	100%
Point IsabelGEOID 1860894	CDP	114	60±45	not published	not published	0.0%	100%
HerbstGEOID 1833178	CDP	99	309±217	$40,366	not published	20.4%	100%
MierGEOID 1849212	CDP	67	210±237	not published	not published	0.0%	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 Grant County?

The median resident of Grant County is 38.7 years old; 21.3% are under 18 and 19.3% are 65 or older. The largest group is non-Hispanic white residents at 82.6%, then non-Hispanic residents of two or more races at 5.8%. 2.8% 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	Grant County	Indiana	Change since 2015-2019
Median age	38.7±0.6	38.1	−1.6
Under 18 years	21.3%±0.1 pts	23.3%	–
65 years and over	19.3%±0.2 pts	16.8%	–
Hispanic or Latino (any race)	5.5%	8.6%	+1.2 pts
White alone, not Hispanic	82.6%±0.3 pts	75.4%	−2.3 pts
Black or African American alone, not Hispanic	4.8%±0.5 pts	9.1%	−2.2 pts
Asian alone, not Hispanic	0.9%±0.2 pts	2.6%	no clear change
American Indian and Alaska Native alone, not Hispanic	0.3%±0.2 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	5.8%±0.6 pts	3.8%	–
Some other race alone, not Hispanic	0.1%±0.1 pts	0.4%	–
Born outside the United States	2.8%±0.5 pts	6.3%	+1.2 pts
Speak a language other than English at home (age 5+)	3.9%±0.6 pts	10.3%	–
Civilian veterans (age 18+)	8.4%±0.9 pts	6.3%	–
With a disability	20.4%±1.4 pts	14.2%	–
No health insurance coverage	6.8%±0.9 pts	7.4%	−1.8 pts
High school graduate or higher (age 25+)	89.3%±1.3 pts	90.4%	–
Bachelor's degree or higher (age 25+)	20.3%±1.7 pts	29.5%	+2.4 pts
Graduate or professional degree (age 25+)	8.0%±1.0 pts	10.8%	–
Moved from another state in the past year	2.6%±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 Grant County earn?

Half of Grant County's 26,773 households earn less than $53,522 a year (±$3,012), against $71,957 in Indiana. In 2015-2019 it was $54,589 in 2024 dollars; the margins of error cannot tell the two periods apart. 19.8% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure	Grant County	Indiana	Change since 2015-2019
Median household income	$53,522±$3,012	$71,957	no clear change
Mean household income	$71,971±$3,420	$95,247	–
Per capita income	$29,423±$1,207	$38,351	no clear change
People below the poverty line	19.8%±1.8 pts	12.3%	no clear change
Children under 18 below the poverty line	28.3%±3.8 pts	16.0%	no clear change
Households receiving SNAP	13.8%±1.6 pts	9.1%	–
Households with a broadband subscription	88.2%±1.6 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 Grant County?

Owners occupy 72.7% of Grant County's occupied homes and renters 27.3%. The median owner-occupied home is valued at $122,300 by its owner (±$4,945). The median renter pays $853 a month including utilities, and 36.6% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
Measure	Grant County	Indiana	Change since 2015-2019
Median home value (owner-occupied)	$122,300±$4,945	$218,200	+$8,215
Median gross rent	$853±$44	$1,062	no clear change
Renters paying 35% or more of income on rent	36.6%±5.1 pts	38.9%	no clear change
Median monthly owner costs, with a mortgage	$1,096±$35	$1,404	–
Owner-occupied homes	72.7%±1.9 pts	70.6%	+4.3 pts
Housing units	29,907±114	2,976,568	−580
Homeowner vacancy rate	0.8%±0.4 pts	0.8%	–
Rental vacancy rate	5.9%±2.7 pts	5.6%	–
Single-family detached homes	79.3%±1.7 pts	72.6%	–
Mobile homes	5.8%±1.0 pts	4.4%	–
Built 2020 or later	0.3%±0.2 pts	1.7%	–
Built 1939 or earlier	21.8%±1.8 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 Grant County building?

Builders took permits for 38 new housing units across Grant County in 2025 (36 single-family), 0.6 per 1,000 residents.

2019 64 units
2020 76 units
2021 32 units
2022 98 units
2023 94 units
2024 52 units
2025 38 units

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

How do people in Grant County get to work?

74.9% of Grant County's workers drive alone and 7.8% work from home. The average trip to work takes 22.0 minutes. The unemployment rate in 2020-2024 averaged 6.3%.

Work and commuting, ACS 2020-2024 5-year estimates
Measure	Grant County	Indiana	Change since 2015-2019
In the labor force (age 16+)	58.4%±1.3 pts	63.8%	–
Unemployment rate	6.3%±1.1 pts	4.3%	no clear change
Drove alone to work	74.9%±2.2 pts	76.3%	–
Carpooled	10.2%±1.8 pts	9.1%	–
Public transportation	0.1%±0.1 pts	0.6%	–
Walked	5.5%±0.9 pts	1.9%	–
Worked from home	7.8%±1.3 pts	10.7%	+2.7 pts
Mean travel time to work	22.0 min±1.4	24.1 min	+3.0 min

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 Grant County's census tracts?

Grant County is divided into 16 census tracts. Among those with a reliable estimate, median household income runs from $36,390 (Tract 9) to $79,837 (Tract 101).

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

Tract 118053000100	Marion	3,788	4,217±571	$43,770	$87,700	$960	41.2%
Tract 218053000200	Marion	3,706	3,035±485	$38,917	$49,400	$683	38.0%
Tract 418053000400	Marion (92%)	3,405	3,651±555	$44,844	$82,500	$803	17.4%
Tract 518053000500	Marion (64%)	4,971	5,350±568	$58,951	$172,900	$1,088	15.9%
Tract 618053000600	Marion (98%)	2,917	2,640±322	$46,463	$98,400	$756	22.8%
Tract 718053000700	Marion (85%)	3,433	3,329±482	$39,821	$70,300	$793	28.6%
Tract 818053000800	Marion (86%)	6,319	6,839±594	$46,954	$98,600	$833	37.7%
Tract 918053000900	Marion (58%)	2,686	2,350±427	$36,390	$84,400	$818	31.9%
Tract 10118053010100	Sweetser (18%)	5,407	5,271±588	$79,837	$186,900	not published	7.9%
Tract 10218053010200	Swayzee (13%)	4,554	4,707±455	$77,813	$171,400	$963	7.9%
Tract 10318053010300	Fairmount (63%)	3,949	3,855±72	$66,324	$114,800	$960	22.3%
Tract 10418053010400	Jonesboro (58%)	2,763	2,645±372	$46,961	$95,500	$1,020	19.6%
Tract 10518053010500	Gas City (95%)	5,329	5,111±318	$54,057	$113,400	$902	18.2%
Tract 10618053010600	Gas City (25%)	3,451	3,264±422	$72,270	$175,700	$1,048	7.3%
Tract 10718053010700	Upland (42%)	5,564	5,670±39	$70,694	$192,200	$905	9.2%
Tract 10818053010800	Van Buren (18%)	4,432	4,361±511	$57,500	$155,800	$924	11.5%

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

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

Grant County's rank among Indiana's counties with a reliable estimate (1 = highest)
Measure	Rank
Population	26th of 92
Growth 2020-2025	78th of 92
Residents per square mile	27th of 92
Median household income	89th of 92
Median home value	87th of 92
Median gross rent	51st of 92
Poverty rate	2nd of 92
Bachelor's degree or higher	42nd of 92
Median age	72nd 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 Grant 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.