County · Indiana

Miami County, Indiana

Miami County, Indiana. Miami County had 34,487 residents in 2025 by the Census Bureau's estimate, down 4.1% since 2020, while Indiana grew 2.8%. It holds 26 places (6 cities, villages and boroughs, 14 towns and townships and 6 census-designated) and 10 census tracts. GEOID 18103.

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

Residents, July 2025 estimate

34,487

Census Bureau estimate (no margin published)
2020 Census count: 35,962 · ACS 2020-2024: 35,712

Median household income

$61,139

±$3,618 (90% margin)
Indiana: $71,957

Median home value

$126,200

±$9,686 (90% margin)
Indiana: $218,200

Median gross rent

$838

±$23 (90% margin)
Indiana: $1,062

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

The 2020 Census counted 35,962 residents in Miami County. The Census Bureau estimates 34,487 for July 1, 2025, down 4.1% since 2020, while Indiana grew 2.8%. The 2020-2024 American Community Survey puts the population at 35,712 over 374 square miles of land.

July 2020→2021 −1,050 (34,857)
2021→2022 −646 (34,211)
2022→2023 −177 (34,034)
2023→2024 +431 (34,465)
2024→2025 +22 (34,487)

Miami County in Indiana. Boundaries: Census Bureau 2024.

Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
Measure	Miami County	Indiana	Change since 2015-2019
Total population	35,712	6,851,073	−103
Households	13,318±263	2,716,009	no clear change
Average household size	2.50±0.05	2.46	no clear change
Housing units	14,952±58	2,976,568	−453

Miami County's population since 2000

From 36,082 in 2000 to 34,487 in 2025: down 4.4%. 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 36,082
2005 (estimate) 37,445
2010 Census 36,903
2015 (estimate) 36,023
2020 Census 35,962
2025 (estimate) 34,487

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 Miami County?

Miami County holds 26 places: 6 cities, villages and boroughs (incorporated places), 14 towns and townships (county subdivisions with their own government) and 6 census-designated places. The largest is Peru with 10,962 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 Miami County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.

Peru	city	11,073	10,901±491	$46,159	$92,500	23.6%	100%
Peru Township	township	10,638	10,607±27	$52,881	$96,700	22.3%	100%
Pipe Creek Township, Miami County	township	6,778	6,688±20	$61,313	$154,000	11.3%	100%
Deer Creek Township, Miami County	township	4,658	4,702±12	$42,164	$138,100	23.4%	100%
Washington Township, Miami County	township	3,365	3,373±22	$48,723	$118,900	10.9%	100%
Grissom AFB	CDP	3,009	2,977±267	$55,104	$79,000	14.4%	100%
Jefferson Township, Miami County	township	2,419	2,652±418	$74,013	$131,000	6.5%	100%
Jackson Township, Miami County	township	1,837	1,632±321	$85,750	$161,300	8.1%	100%
Richland Township, Miami CountyGEOID 1810364134	township	1,108	820±252	$71,350	$159,000	8.2%	100%
MexicoGEOID 1848636	CDP	915	906±274	$87,635	$108,400	2.1%	100%
Converse	town	1,161	813±214	$65,536	$103,800	18.9%	78%
Clay Township, Miami County	township	889	1,131±380	$67,408	$176,800	18.2%	100%
Butler Township, Miami CountyGEOID 1810309586	township	826	547±189	$67,434	$233,000	6.6%	100%
Perry Township, Miami CountyGEOID 1810359094	township	822	899±261	$111,563	$223,700	1.2%	100%
Bunker Hill	town	814	940±205	$52,973	$91,600	14.1%	100%
Union Township, Miami CountyGEOID 1810377462	township	764	630±196	$66,471	$177,600	14.6%	100%
Harrison Township, Miami CountyGEOID 1810331918	township	665	779±200	$70,250	$300,800	4.9%	100%
Allen Township, Miami CountyGEOID 1810301018	township	642	625±232	$49,736	$160,400	5.3%	100%
Erie TownshipGEOID 1810321412	township	551	627±216	$66,000	$254,100	20.1%	100%
Denver	town	478	553±208	$61,591	$96,800	9.0%	100%
MiamiGEOID 1848672	CDP	–	409±225	$78,750	not published	7.6%	100%
AmboyGEOID 1801360	town	317	338±125	$51,667	$121,300	26.6%	100%
MacyGEOID 1845864	town	199	199±104	$49,643	$61,700	6.5%	100%
Bennetts SwitchGEOID 1804726	CDP	–	141±167	not published	$253,300	0.0%	100%
ChiliGEOID 1812502	CDP	–	48±40	not published	$56,400	0.0%	100%
North GroveGEOID 1854792	CDP	–	8±12	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 Miami County?

The median resident of Miami County is 41.5 years old; 20.8% are under 18 and 18.2% are 65 or older. The largest group is non-Hispanic white residents at 86.9%, then non-Hispanic residents of two or more races at 4.1%. 1.4% 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	Miami County	Indiana	Change since 2015-2019
Median age	41.5±0.6	38.1	+1.4
Under 18 years	20.8%±0.1 pts	23.3%	–
65 years and over	18.2%±0.2 pts	16.8%	–
Hispanic or Latino (any race)	3.7%	8.6%	+0.5 pts
White alone, not Hispanic	86.9%±0.5 pts	75.4%	−1.8 pts
Black or African American alone, not Hispanic	3.7%±0.4 pts	9.1%	−1.7 pts
Asian alone, not Hispanic	0.6%±0.1 pts	2.6%	no clear change
American Indian and Alaska Native alone, not Hispanic	0.2%±0.1 pts	0.1%	–
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0.2%±0.3 pts	0.0%	–
Two or more races, not Hispanic	4.1%±0.6 pts	3.8%	–
Some other race alone, not Hispanic	0.4%±0.3 pts	0.4%	–
Born outside the United States	1.4%±0.5 pts	6.3%	no clear change
Speak a language other than English at home (age 5+)	3.4%±0.9 pts	10.3%	–
Civilian veterans (age 18+)	8.0%±1.2 pts	6.3%	–
With a disability	17.9%±1.4 pts	14.2%	–
No health insurance coverage	6.9%±1.5 pts	7.4%	no clear change
High school graduate or higher (age 25+)	88.6%±1.5 pts	90.4%	–
Bachelor's degree or higher (age 25+)	16.1%±1.7 pts	29.5%	+3.1 pts
Graduate or professional degree (age 25+)	5.0%±1.1 pts	10.8%	–
Moved from another state in the past year	0.5%±0.3 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 Miami County earn?

Half of Miami County's 13,318 households earn less than $61,139 a year (±$3,618), against $71,957 in Indiana. In 2015-2019 it was $62,343 in 2024 dollars; the margins of error cannot tell the two periods apart. 15.1% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure	Miami County	Indiana	Change since 2015-2019
Median household income	$61,139±$3,618	$71,957	no clear change
Mean household income	$77,345±$4,372	$95,247	–
Per capita income	$30,463±$1,590	$38,351	no clear change
People below the poverty line	15.1%±2.4 pts	12.3%	no clear change
Children under 18 below the poverty line	24.9%±6.1 pts	16.0%	no clear change
Households receiving SNAP	11.6%±1.8 pts	9.1%	–
Households with a broadband subscription	87.5%±1.7 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 Miami County?

Owners occupy 76.2% of Miami County's occupied homes and renters 23.8%. The median owner-occupied home is valued at $126,200 by its owner (±$9,686). The median renter pays $838 a month including utilities, and 31.2% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
Measure	Miami County	Indiana	Change since 2015-2019
Median home value (owner-occupied)	$126,200±$9,686	$218,200	+$17,037
Median gross rent	$838±$23	$1,062	no clear change
Renters paying 35% or more of income on rent	31.2%±6.5 pts	38.9%	no clear change
Median monthly owner costs, with a mortgage	$1,074±$47	$1,404	–
Owner-occupied homes	76.2%±2.2 pts	70.6%	+4.7 pts
Housing units	14,952±58	2,976,568	−453
Homeowner vacancy rate	0.6%±0.7 pts	0.8%	–
Rental vacancy rate	8.1%±3.0 pts	5.6%	–
Single-family detached homes	75.8%±2.0 pts	72.6%	–
Mobile homes	10.1%±1.6 pts	4.4%	–
Built 2020 or later	0.7%±0.3 pts	1.7%	–
Built 1939 or earlier	33.2%±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 Miami County building?

Builders took permits for 84 new housing units across Miami County in 2025 (48 single-family), 2.4 per 1,000 residents.

2019 26 units
2020 32 units
2021 18 units
2022 189 units
2023 20 units
2024 35 units
2025 84 units

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

How do people in Miami County get to work?

83.5% of Miami County's workers drive alone and 4.9% work from home. The average trip to work takes 25.6 minutes. The unemployment rate in 2020-2024 averaged 6.6%.

Work and commuting, ACS 2020-2024 5-year estimates
Measure	Miami County	Indiana	Change since 2015-2019
In the labor force (age 16+)	54.7%±1.8 pts	63.8%	–
Unemployment rate	6.6%±1.3 pts	4.3%	no clear change
Drove alone to work	83.5%±2.6 pts	76.3%	–
Carpooled	9.0%±2.0 pts	9.1%	–
Public transportation	0.3%±0.3 pts	0.6%	–
Walked	1.7%±1.1 pts	1.9%	–
Worked from home	4.9%±1.4 pts	10.7%	+2.9 pts
Mean travel time to work	25.6 min±1.8	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 Miami County's census tracts?

Miami County is divided into 10 census tracts. Among those with a reliable estimate, median household income runs from $40,547 (Tract 9523) to $76,083 (Tract 9526).

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

Tract 952018103952000	Denver (7%)	4,423	4,223±373	$70,614	$167,600	$669	8.2%
Tract 952118103952100	Peru (28%)	4,355	4,202±448	$72,778	$145,900	$681	7.5%
Tract 952218103952200	Peru (99%)	2,740	2,923±385	$55,694	$102,800	$866	23.0%
Tract 952318103952300	Peru	2,753	2,876±526	$40,547	$84,700	$895	34.5%
Tract 952418103952400	Peru	2,673	2,636±436	$48,521	$84,500	$708	20.5%
Tract 952518103952500	Peru (88%)	2,196	2,394±181	$44,692	$122,200	$714	13.2%
Tract 952618103952600	Converse (20%)	3,480	3,170±313	$76,083	$201,200	$792	6.5%
Tract 952718103952700	Bunker Hill (21%)	4,603	6,009±468	$56,167	$125,000	$813	18.6%
Tract 952818103952800	–	2,676	2,693±268	$69,940	$189,500	$989	6.7%
Tract 952918103952900	Grissom AFB (93%)	6,063	4,586±296	$55,104	$79,000	$878	14.4%

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

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

Miami County's rank among Indiana's counties with a reliable estimate (1 = highest)
Measure	Rank
Population	45th of 92
Growth 2020-2025	92nd of 92
Residents per square mile	42nd of 92
Median household income	78th of 92
Median home value	86th of 92
Median gross rent	60th of 92
Poverty rate	17th of 92
Bachelor's degree or higher	72nd of 92
Median age	40th 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 Miami 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.