US Census Data

Hamilton County vs Marion County

A side-by-side comparison of Hamilton County and Marion County: population, income, housing, and more.

Hamilton County and Marion County are counties in Indiana. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Marion County has the higher population (971,822 vs 357,176 in Hamilton County). Hamilton County has the higher median household income ($117,957 vs $63,450 in Marion County). Hamilton County has the higher median home value ($379,100 vs $207,000 in Marion County).

Population, income & housing

Hamilton CountyMarion County
Population357,176971,822
Median age38.0 yrs34.3 yrs
Median household income$117,957$63,450
Median home value$379,100$207,000
Median gross rent$1,468$1,107
Housing units140,389439,034
Homeownership rate76.3%55.9%
Bachelor's degree or higher61.8%34.1%
Unemployment rate2.8%5.1%

Trends (ACS 5-year, 2019–2023)

Hamilton CountyMarion County
Population323,117 → 357,176 (+10.5%)951,869 → 971,822 (+2.1%)
Median household income$98,173 → $117,957 (+20.2%)$48,316 → $63,450 (+31.3%)
Median home value$263,300 → $379,100 (+44.0%)$136,700 → $207,000 (+51.4%)
Median gross rent$1,176 → $1,468 (+24.8%)$889 → $1,107 (+24.5%)

Hamilton County

Population
323,117357,176
Median household income
$98,173$117,957
Median home value
$263,300$379,100
Median gross rent
$1,176$1,468

Marion County

Population
951,869971,822
Median household income
$48,316$63,450
Median home value
$136,700$207,000
Median gross rent
$889$1,107

Age & race/ethnicity

Age distribution (share)

Hamilton CountyMarion County
Under 56.0%7.0%
5 to 1719.9%18.0%
18 to 247.9%9.4%
25 to 3411.8%16.6%
35 to 4415.1%13.4%
45 to 5414.0%11.2%
55 to 6411.9%11.5%
65 to 748.3%8.1%
75 and over5.2%4.8%

Race & ethnicity (share)

Hamilton CountyMarion County
White (non-Hispanic)79.7%50.5%
Black or African American4.1%27.3%
American Indian & Alaska Native0.0%0.1%
Asian6.7%3.9%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.6%0.5%
Two or more races3.5%4.3%
Hispanic or Latino5.4%13.4%

Educational attainment (age 25+)

Share of adults 25+

Hamilton CountyMarion County
No high school diploma2.7%12.3%
High school graduate14.2%27.1%
Some college or associate's21.3%26.6%
Bachelor's degree38.9%21.7%
Graduate or professional degree23.0%12.4%

Commute to work

How workers get to work (share)

Hamilton CountyMarion County
Drove alone71.0%73.8%
Carpooled6.7%9.7%
Public transit0.0%1.3%
Walked0.8%1.7%
Bicycle0.2%0.4%
Worked from home20.7%12.3%
Other means0.6%0.9%

Housing

Units in structure (share)

Hamilton CountyMarion County
1-unit, detached75.2%59.7%
1-unit, attached4.6%8.0%
2 to 4 units3.9%8.5%
5 to 19 units9.5%14.1%
20 or more units5.3%8.2%
Mobile home & other1.5%1.6%

Poverty & households

Hamilton CountyMarion County
Poverty rate4.3%15.1%
Average household size2.672.41
Mean commute (minutes)2624
Median year structure built20001972

Full profiles

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